Pub Date : 2012-12-13DOI: 10.1109/ICP.2012.6379824
A. Zahid, J. S. Mandeep, P. Menon, H. Bakarman, F. Hasoon, A. Bakar, M. A. Ali
Two-dimensional (2-D) wavelength-spreading time-hopping for optical code-division multiple-access (OCDMA) systems have attracted much attention as a potential technique for enhancing the performance of optical access networks and propose a robust solution for the last mile networks. OCDMA itself is attractive because of its beneficial features which includes asynchronous multiple access, robustness against interference, high security and flexible bandwidth assignment. In this paper, we present the simulative study and comparison of a multi dimension 2D-OCDMA network utilizing Enhanced Double Weight (EDW) code which has enhanced properties such as a cross-correlation value of 1 and has a simple encoder/decoder design. The output BER was satisfactory at above 10-9 at the data rate of 1.25Gbps for various distances with the ITU-T G.652 standard single mode optical fiber.
{"title":"Performance analysis of multi-weight 2D-OCDMA TEDW","authors":"A. Zahid, J. S. Mandeep, P. Menon, H. Bakarman, F. Hasoon, A. Bakar, M. A. Ali","doi":"10.1109/ICP.2012.6379824","DOIUrl":"https://doi.org/10.1109/ICP.2012.6379824","url":null,"abstract":"Two-dimensional (2-D) wavelength-spreading time-hopping for optical code-division multiple-access (OCDMA) systems have attracted much attention as a potential technique for enhancing the performance of optical access networks and propose a robust solution for the last mile networks. OCDMA itself is attractive because of its beneficial features which includes asynchronous multiple access, robustness against interference, high security and flexible bandwidth assignment. In this paper, we present the simulative study and comparison of a multi dimension 2D-OCDMA network utilizing Enhanced Double Weight (EDW) code which has enhanced properties such as a cross-correlation value of 1 and has a simple encoder/decoder design. The output BER was satisfactory at above 10-9 at the data rate of 1.25Gbps for various distances with the ITU-T G.652 standard single mode optical fiber.","PeriodicalId":243533,"journal":{"name":"2012 IEEE 3rd International Conference on Photonics","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127014432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-12-13DOI: 10.1109/ICP.2012.6379826
N. Radzi, N. M. Din, M. Al-Mansoori, M. Majid
Ethernet passive optical network (EPON) is becoming more popular since the users demand more bandwidth each day. A lot of simulation studies have been done in order to study the upstream EPON transmission, but they are less accurate due to assumed parameters and it does not take into account the physical parameters and the non-linear effects of the optical components. Therefore, this paper presents the study of upstream EPON transmission using hardware. To the best of our knowledge, this is the first time peripheral interface controller (PIC) is being used for an EPON testbed. We also compare the delay result that we achieved from the testbed to the result that we obtained via simulation. The trend of the graph is of the same pattern, with some value differences that are expected due to too many assumptions used in simulation.
{"title":"A PIC implementation of upstream transmission for EPON","authors":"N. Radzi, N. M. Din, M. Al-Mansoori, M. Majid","doi":"10.1109/ICP.2012.6379826","DOIUrl":"https://doi.org/10.1109/ICP.2012.6379826","url":null,"abstract":"Ethernet passive optical network (EPON) is becoming more popular since the users demand more bandwidth each day. A lot of simulation studies have been done in order to study the upstream EPON transmission, but they are less accurate due to assumed parameters and it does not take into account the physical parameters and the non-linear effects of the optical components. Therefore, this paper presents the study of upstream EPON transmission using hardware. To the best of our knowledge, this is the first time peripheral interface controller (PIC) is being used for an EPON testbed. We also compare the delay result that we achieved from the testbed to the result that we obtained via simulation. The trend of the graph is of the same pattern, with some value differences that are expected due to too many assumptions used in simulation.","PeriodicalId":243533,"journal":{"name":"2012 IEEE 3rd International Conference on Photonics","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126288727","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-12-13DOI: 10.1109/ICP.2012.6379879
V. J. Kurian, C. Ng, M. S. Liew
Physical modeling serves as an important tool in the development of the full scale devices especially in the oil and gas industry. Dynamic responses of the scaled model subjected to the environmental forces are obtained by testing the models in the wave tank. Conventionally accelerometers have been used to determine the dynamic motion responses of the model in the six degrees of freedom. However, the accelerometer has limitation that it can directly measure the translation motions only and rotation motions have to be interpreted from them. Recently developed optical tracking system has proven to be very efficient in measuring all the dynamic responses. Hence, many Laboratories use both the accelerometers and optical tracking system for mutual validation and accuracy of the measurements. In this paper, a new optical tracking system acquired by the Offshore Laboratory of UniversitiTeknologi PETRONAS (UTP), is discussed. The details of the system and the tracking procedures are presented and the paper concludes by presenting very reliable results based on these measurements.
{"title":"Use of optical tracking system for measurement of dynamic model responses in a wave tank","authors":"V. J. Kurian, C. Ng, M. S. Liew","doi":"10.1109/ICP.2012.6379879","DOIUrl":"https://doi.org/10.1109/ICP.2012.6379879","url":null,"abstract":"Physical modeling serves as an important tool in the development of the full scale devices especially in the oil and gas industry. Dynamic responses of the scaled model subjected to the environmental forces are obtained by testing the models in the wave tank. Conventionally accelerometers have been used to determine the dynamic motion responses of the model in the six degrees of freedom. However, the accelerometer has limitation that it can directly measure the translation motions only and rotation motions have to be interpreted from them. Recently developed optical tracking system has proven to be very efficient in measuring all the dynamic responses. Hence, many Laboratories use both the accelerometers and optical tracking system for mutual validation and accuracy of the measurements. In this paper, a new optical tracking system acquired by the Offshore Laboratory of UniversitiTeknologi PETRONAS (UTP), is discussed. The details of the system and the tracking procedures are presented and the paper concludes by presenting very reliable results based on these measurements.","PeriodicalId":243533,"journal":{"name":"2012 IEEE 3rd International Conference on Photonics","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126293682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-12-13DOI: 10.1109/ICP.2012.6379523
M. Wong, W. Tan, N. Zulkifli, S. M. Idrus
Energy consumption of ICT sector has become a contemporary issue since it is experiencing a rapid growth. Since, the access networks are estimated to consume nearly 70% of the total Internet energy consumption worldwide, an effective strategy to reduce energy consumption must consider the deployment of energy-efficient solutions within the access network domain. In specific, this paper focuses on the energy-aware solutions within the hybrid optical wireless access network (HOWAN) environment. Currently, majority of the works in Green HOWAN are still limited to a specific functional layer. Nevertheless, we believe that it is also important to investigate a more comprehensive energy-efficient solution that includes more than just one functional layer. This paper proposes a framework for an integrated green solution that takes into consideration both the transmission and network layers. Low power modulation format such as OFDM is proposed over HOWAN that runs green routing algorithm. Preliminary results show transmission and network layer analyses of OFDM format and green routing algorithm over HOWAN. Future work aims at incorporating information of OFDM energy model over green HOWAN network layer analysis.
{"title":"Cross layer solution towards green hybrid optical wireless access network utilizing energy efficient of routing and modulation format","authors":"M. Wong, W. Tan, N. Zulkifli, S. M. Idrus","doi":"10.1109/ICP.2012.6379523","DOIUrl":"https://doi.org/10.1109/ICP.2012.6379523","url":null,"abstract":"Energy consumption of ICT sector has become a contemporary issue since it is experiencing a rapid growth. Since, the access networks are estimated to consume nearly 70% of the total Internet energy consumption worldwide, an effective strategy to reduce energy consumption must consider the deployment of energy-efficient solutions within the access network domain. In specific, this paper focuses on the energy-aware solutions within the hybrid optical wireless access network (HOWAN) environment. Currently, majority of the works in Green HOWAN are still limited to a specific functional layer. Nevertheless, we believe that it is also important to investigate a more comprehensive energy-efficient solution that includes more than just one functional layer. This paper proposes a framework for an integrated green solution that takes into consideration both the transmission and network layers. Low power modulation format such as OFDM is proposed over HOWAN that runs green routing algorithm. Preliminary results show transmission and network layer analyses of OFDM format and green routing algorithm over HOWAN. Future work aims at incorporating information of OFDM energy model over green HOWAN network layer analysis.","PeriodicalId":243533,"journal":{"name":"2012 IEEE 3rd International Conference on Photonics","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131083191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-12-13DOI: 10.1109/ICP.2012.6379850
M. Ali, F. Abdullah, M. Z. Jamaludin, M. Al-Mansoori, A. Ismail, A. Abass
In this paper, the effect of the large signal power on the Raman amplification is simulated utilizing OptiSystem. Two types of Raman amplification systems are simulated; average power Raman amplifier model (APA-RFA) and bidirectional-fiber Raman amplifier model (Bi-Fiber RFA). A comparison is made between these two kinds of amplifiers under the same input power condition. As a result the saturation mechanism due to the large input signal is recognized in bidirectional fiber Raman amplifier model. This saturation is due to the stimulated Brillouin scattering that occurred once the input signal power exceeds the stimulated Brillouin scattering threshold (SBSTH). On the other hand, the average power Raman amplifier model exhibits constant Raman gain with the input signal power variation as the stimulated Brillouin scattering is not considered in this model. Finally, experimental results show significant agreement with the simulation results of the bidirectional fiber Raman amplifier model.
{"title":"Simulation and experimental validation of gain saturation in Raman fiber amplifier","authors":"M. Ali, F. Abdullah, M. Z. Jamaludin, M. Al-Mansoori, A. Ismail, A. Abass","doi":"10.1109/ICP.2012.6379850","DOIUrl":"https://doi.org/10.1109/ICP.2012.6379850","url":null,"abstract":"In this paper, the effect of the large signal power on the Raman amplification is simulated utilizing OptiSystem. Two types of Raman amplification systems are simulated; average power Raman amplifier model (APA-RFA) and bidirectional-fiber Raman amplifier model (Bi-Fiber RFA). A comparison is made between these two kinds of amplifiers under the same input power condition. As a result the saturation mechanism due to the large input signal is recognized in bidirectional fiber Raman amplifier model. This saturation is due to the stimulated Brillouin scattering that occurred once the input signal power exceeds the stimulated Brillouin scattering threshold (SBSTH). On the other hand, the average power Raman amplifier model exhibits constant Raman gain with the input signal power variation as the stimulated Brillouin scattering is not considered in this model. Finally, experimental results show significant agreement with the simulation results of the bidirectional fiber Raman amplifier model.","PeriodicalId":243533,"journal":{"name":"2012 IEEE 3rd International Conference on Photonics","volume":"193 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131873302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-12-13DOI: 10.1109/ICP.2012.6379866
Shih-Hsiang Hsu, Chih-Yuan Tsou, Jung-Chen Hsu
This paper proposed a strain sensing system using two-stage optical low coherence Mach-Zehnder interferometry. A 1.3-μm wavelength distributed feedback laser for an optical ruler assisted stepper motor was implemented to achieve 19.3-nm resolved characterization. The interferogram calibrated by the stepper motor combined with optical ruler on a 3-meter long fiber then demonstrated a 2.78-nε high resolution strain sensing. It successfully demonstrated that a stable stepper motor can further improve the optical ruler encoder to establish a high sensitivity and high resolution interferometric strain sensor.
{"title":"Interferometric fiber strain sensor","authors":"Shih-Hsiang Hsu, Chih-Yuan Tsou, Jung-Chen Hsu","doi":"10.1109/ICP.2012.6379866","DOIUrl":"https://doi.org/10.1109/ICP.2012.6379866","url":null,"abstract":"This paper proposed a strain sensing system using two-stage optical low coherence Mach-Zehnder interferometry. A 1.3-μm wavelength distributed feedback laser for an optical ruler assisted stepper motor was implemented to achieve 19.3-nm resolved characterization. The interferogram calibrated by the stepper motor combined with optical ruler on a 3-meter long fiber then demonstrated a 2.78-nε high resolution strain sensing. It successfully demonstrated that a stable stepper motor can further improve the optical ruler encoder to establish a high sensitivity and high resolution interferometric strain sensor.","PeriodicalId":243533,"journal":{"name":"2012 IEEE 3rd International Conference on Photonics","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127352799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-12-13DOI: 10.1109/ICP.2012.6379893
M. Al-Mansoori, F. Hasoon
In this paper, a high sensitivity dual-stage L-band erbium-doped fiber amplifier (L-EDFA) has been optimized using different performance parameters such as gain and noise figure for different erbium-doped fiber (EDF) ions concentration, EDF pump powers, input signal power pumping wavelengths, power and directions. It has shown that when the optimized parameters are used, the dual-stage L-EDFA provides better performance of gain and noise figure using short gain medium. The amplifier structure is able to achieve high gain of 50 dB with noise figure less than 4 dB using 7 m of EDF.
{"title":"Performance evaluation and optimization of dual-stage L-band EDFA utilizing short gain medium","authors":"M. Al-Mansoori, F. Hasoon","doi":"10.1109/ICP.2012.6379893","DOIUrl":"https://doi.org/10.1109/ICP.2012.6379893","url":null,"abstract":"In this paper, a high sensitivity dual-stage L-band erbium-doped fiber amplifier (L-EDFA) has been optimized using different performance parameters such as gain and noise figure for different erbium-doped fiber (EDF) ions concentration, EDF pump powers, input signal power pumping wavelengths, power and directions. It has shown that when the optimized parameters are used, the dual-stage L-EDFA provides better performance of gain and noise figure using short gain medium. The amplifier structure is able to achieve high gain of 50 dB with noise figure less than 4 dB using 7 m of EDF.","PeriodicalId":243533,"journal":{"name":"2012 IEEE 3rd International Conference on Photonics","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129286668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-12-13DOI: 10.1109/ICP.2012.6379842
Wai Loon-Ho, C. Ooi, A. Bandrauk
We extend the Keldysh theory to study the characteristics of ionization rate of a hydrogenic atom subjected to intense lasers field. We obtain an exact semianalytical result of the ionization rate for the linearly polarized laser field. The Keldysh's theory is generalized for arbitrary momentum of the photoelectron. We study the contribution of an additional term, associated with the second pole neglected in Keldysh's theory, to the photoionization spectra of the exact rates as functions of frequency and electric field strength.
{"title":"Generalized momentum of tunnelling ionization of hydrogenic atom in linearly polarized laser","authors":"Wai Loon-Ho, C. Ooi, A. Bandrauk","doi":"10.1109/ICP.2012.6379842","DOIUrl":"https://doi.org/10.1109/ICP.2012.6379842","url":null,"abstract":"We extend the Keldysh theory to study the characteristics of ionization rate of a hydrogenic atom subjected to intense lasers field. We obtain an exact semianalytical result of the ionization rate for the linearly polarized laser field. The Keldysh's theory is generalized for arbitrary momentum of the photoelectron. We study the contribution of an additional term, associated with the second pole neglected in Keldysh's theory, to the photoionization spectra of the exact rates as functions of frequency and electric field strength.","PeriodicalId":243533,"journal":{"name":"2012 IEEE 3rd International Conference on Photonics","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125596494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-12-13DOI: 10.1109/ICP.2012.6379891
Dandan Liang, Xinyi Xu, S. Ng, L. Hanzo
A low-complexity cooperative wireless and optical-fiber communication scheme is proposed for uplink communication in a Fractional Frequency Reuse (FFR) based multicell, multiuser system. The FFR principle is invoked for improving the cell-edge performance without reducing the throughput of the cell-center. Each cell is illuminated with the aid of six Remote Antennas (RAs), which are connected to the central base-station with the aid of realistically modelled imperfect optical-fiber links. When a Mobile Station (MS) is located at the cell-edge, the two nearest RAs can be invoked to detect and forward the user's signal to the base-station, based on the Single-Input Multiple-Output (SIMO) principle. Furthermore, we design a Turbo Coded (TC) 16-level Star-Quadrature Amplitude Modulation (StQAM) scheme for supporting optical-fiber-aided cooperative wireless transmission, where the receiver does not have to estimate the channel state information. Hence, a lower detection complexity can be achieved when compared to coherently detected schemes, albeit naturally, at a 3 dB power-loss. We also investigated the effect of phase-rotation imposed by imperfect optical-fiber links. We found that our noncoherent TC-StQAM scheme is robust to both wireless and optical-fiber imperfections.
{"title":"Turbo-coded Star-QAM for cooperative wireless and optical-fiber communications","authors":"Dandan Liang, Xinyi Xu, S. Ng, L. Hanzo","doi":"10.1109/ICP.2012.6379891","DOIUrl":"https://doi.org/10.1109/ICP.2012.6379891","url":null,"abstract":"A low-complexity cooperative wireless and optical-fiber communication scheme is proposed for uplink communication in a Fractional Frequency Reuse (FFR) based multicell, multiuser system. The FFR principle is invoked for improving the cell-edge performance without reducing the throughput of the cell-center. Each cell is illuminated with the aid of six Remote Antennas (RAs), which are connected to the central base-station with the aid of realistically modelled imperfect optical-fiber links. When a Mobile Station (MS) is located at the cell-edge, the two nearest RAs can be invoked to detect and forward the user's signal to the base-station, based on the Single-Input Multiple-Output (SIMO) principle. Furthermore, we design a Turbo Coded (TC) 16-level Star-Quadrature Amplitude Modulation (StQAM) scheme for supporting optical-fiber-aided cooperative wireless transmission, where the receiver does not have to estimate the channel state information. Hence, a lower detection complexity can be achieved when compared to coherently detected schemes, albeit naturally, at a 3 dB power-loss. We also investigated the effect of phase-rotation imposed by imperfect optical-fiber links. We found that our noncoherent TC-StQAM scheme is robust to both wireless and optical-fiber imperfections.","PeriodicalId":243533,"journal":{"name":"2012 IEEE 3rd International Conference on Photonics","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121815409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-12-13DOI: 10.1109/ICP.2012.6379870
Khadijah Ismail, P. Menon, H. Bakarman, A. Bakar, N. Arsad
Semiconductor Optical Amplifier (SOA) is used for a 2.5Gbps Coarse Wavelength Division Multiplexing (CWDM) transmission in O to L-band (1271-1611 nm). Analysis of the proposed topology is conducted using Optisystem software. In this paper, discussions on the gain spectrum and the quality of signal of an optically amplified 18 channel system are provided. A wideband travelling wave SOA which operates as an inline amplifier resulted in wide 3 dB bandwidth of 200 nm. The overall quality of signal at the receiver is evaluated with the Q factor value. Better performance based on Q factor analysis is obtained at larger lengths of the first fiber span and a flat gain over 11 CWDM channels is obtained.
{"title":"Performance of 18 channel CWDM system with inline Semiconductor Optical Amplifier","authors":"Khadijah Ismail, P. Menon, H. Bakarman, A. Bakar, N. Arsad","doi":"10.1109/ICP.2012.6379870","DOIUrl":"https://doi.org/10.1109/ICP.2012.6379870","url":null,"abstract":"Semiconductor Optical Amplifier (SOA) is used for a 2.5Gbps Coarse Wavelength Division Multiplexing (CWDM) transmission in O to L-band (1271-1611 nm). Analysis of the proposed topology is conducted using Optisystem software. In this paper, discussions on the gain spectrum and the quality of signal of an optically amplified 18 channel system are provided. A wideband travelling wave SOA which operates as an inline amplifier resulted in wide 3 dB bandwidth of 200 nm. The overall quality of signal at the receiver is evaluated with the Q factor value. Better performance based on Q factor analysis is obtained at larger lengths of the first fiber span and a flat gain over 11 CWDM channels is obtained.","PeriodicalId":243533,"journal":{"name":"2012 IEEE 3rd International Conference on Photonics","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127037476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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