Pub Date : 2002-03-17DOI: 10.1109/OFC.2002.1036439
Chun-Liang Yang, San-Liang Lee
We propose here a high-resolution tunable wavelength monitoring technique that combines the advantages of stable temperature properties of a Fabry Perot (FP) etalon filter as well as fast tunability of the transparent properties of a FP laser diode. Significant relief to the required temperature stability, about :0.2C, is achieved, so wavelength resolution of 0.01 nm can easily be obtained for many channels.
{"title":"Wavelength monitoring of tunable DWDM sources using a FP etalon and a FP laser diode","authors":"Chun-Liang Yang, San-Liang Lee","doi":"10.1109/OFC.2002.1036439","DOIUrl":"https://doi.org/10.1109/OFC.2002.1036439","url":null,"abstract":"We propose here a high-resolution tunable wavelength monitoring technique that combines the advantages of stable temperature properties of a Fabry Perot (FP) etalon filter as well as fast tunability of the transparent properties of a FP laser diode. Significant relief to the required temperature stability, about :0.2C, is achieved, so wavelength resolution of 0.01 nm can easily be obtained for many channels.","PeriodicalId":347952,"journal":{"name":"Optical Fiber Communication Conference and Exhibit","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117041532","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 : 2002-03-17DOI: 10.1109/OFC.2002.1036714
M. Yuang, J. Shih, P. Tien
In this paper, we propose a QoS burstification (QBT) mechanism on the basis of a new notion window. The QBT mechanism efficiently emulates the burst behavior by exerting simple FIFO service within the window and weight-proportional service at the window boundary. As will be shown, QBT achieves fairness and mean-burstification-delay guarantees among various traffic classes.
{"title":"QoS burstification for optical burst switched WDM networks","authors":"M. Yuang, J. Shih, P. Tien","doi":"10.1109/OFC.2002.1036714","DOIUrl":"https://doi.org/10.1109/OFC.2002.1036714","url":null,"abstract":"In this paper, we propose a QoS burstification (QBT) mechanism on the basis of a new notion window. The QBT mechanism efficiently emulates the burst behavior by exerting simple FIFO service within the window and weight-proportional service at the window boundary. As will be shown, QBT achieves fairness and mean-burstification-delay guarantees among various traffic classes.","PeriodicalId":347952,"journal":{"name":"Optical Fiber Communication Conference and Exhibit","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129782040","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 : 2002-03-17DOI: 10.1109/OFC.2002.1036329
J. Poirrier, F. Buchali, H. Bulow, S. Lanne, E. Corbel
We studied a higher order PMD mitigation scheme, aiming at suppressing depolarized components of a compensated signal, the higher order canceller. It is composed of a simple compensator followed by a polarization controller and a polarizer. We experimentally verified that it performs better than its first stage alone. Using simulation, we addressed its impact on system to more relevant outage probability and better feedback signals. We prove, that, for a cumulative probability of CP=10/sup -5/ at (PMD)=30 ps, it can reduce by nearly 1 dB the power penalty of a simple compensator, reaching then the 2 dB outage margin. Finally, it should be emphasized that this mitigation technique is already implemented in polarization dependent receiver and has been so far overseen as an advantage of such a structure.
我们研究了一种高阶PMD缓解方案，旨在抑制补偿信号的去极化分量，即高阶抵消器。它由一个简单的补偿器、一个偏振控制器和一个偏振器组成。我们通过实验验证了它的性能比单独的第一级要好。通过仿真，我们将其对系统的影响定位为更相关的中断概率和更好的反馈信号。我们证明，对于CP=10/sup -5/ at (PMD)=30 ps的累积概率，它可以将简单补偿器的功率损失减少近1 dB，从而达到2 dB的中断裕度。最后，应该强调的是，这种缓解技术已经在极化依赖接收器中实施，并且迄今为止一直被视为这种结构的优势。
{"title":"Higher order PMD canceller","authors":"J. Poirrier, F. Buchali, H. Bulow, S. Lanne, E. Corbel","doi":"10.1109/OFC.2002.1036329","DOIUrl":"https://doi.org/10.1109/OFC.2002.1036329","url":null,"abstract":"We studied a higher order PMD mitigation scheme, aiming at suppressing depolarized components of a compensated signal, the higher order canceller. It is composed of a simple compensator followed by a polarization controller and a polarizer. We experimentally verified that it performs better than its first stage alone. Using simulation, we addressed its impact on system to more relevant outage probability and better feedback signals. We prove, that, for a cumulative probability of CP=10/sup -5/ at (PMD)=30 ps, it can reduce by nearly 1 dB the power penalty of a simple compensator, reaching then the 2 dB outage margin. Finally, it should be emphasized that this mitigation technique is already implemented in polarization dependent receiver and has been so far overseen as an advantage of such a structure.","PeriodicalId":347952,"journal":{"name":"Optical Fiber Communication Conference and Exhibit","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128523069","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 : 2002-03-17DOI: 10.1109/OFC.2002.1036670
K. Shigihara, K. Kawasaki, Y. Yoshida, S. Yamamura, T. Yagi, E. Omura
The new ridge waveguide LD consisted of layers to support asymmetrically expanded optical field normal to the active layer has been proposed in order to satisfy the increase of kink free output power and the reduction of aspect ratio. More than 650 mW kink free output power and less than 2.5 aspect ratio have been achieved by the proposed LD. Good aging performances are also expressed in the proposed LD. It is believed that the LDs are suitable for realizing 980 nm modules with high coupling efficiency and high power EDFAs.
{"title":"High power and small aspect ratio 980 nm ridge waveguide laser diodes consisted of asymmetrically expanded optical field normal to the active layer","authors":"K. Shigihara, K. Kawasaki, Y. Yoshida, S. Yamamura, T. Yagi, E. Omura","doi":"10.1109/OFC.2002.1036670","DOIUrl":"https://doi.org/10.1109/OFC.2002.1036670","url":null,"abstract":"The new ridge waveguide LD consisted of layers to support asymmetrically expanded optical field normal to the active layer has been proposed in order to satisfy the increase of kink free output power and the reduction of aspect ratio. More than 650 mW kink free output power and less than 2.5 aspect ratio have been achieved by the proposed LD. Good aging performances are also expressed in the proposed LD. It is believed that the LDs are suitable for realizing 980 nm modules with high coupling efficiency and high power EDFAs.","PeriodicalId":347952,"journal":{"name":"Optical Fiber Communication Conference and Exhibit","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128773580","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 : 2002-03-17DOI: 10.1109/OFC.2002.1036433
J. Bromage, H. Thiele, L. E. Nelson
In summary, we have reviewed the use of discrete and distributed Raman amplification for S-band transmission. Distributed S-band amplification in low-loss fiber improves the effective noise figure of the system. However, in multiband transmission, interband Raman scattering produces S-band power depletion and crosstalk, issues that must be addressed in the design of future systems.
{"title":"Raman amplification in the S-band","authors":"J. Bromage, H. Thiele, L. E. Nelson","doi":"10.1109/OFC.2002.1036433","DOIUrl":"https://doi.org/10.1109/OFC.2002.1036433","url":null,"abstract":"In summary, we have reviewed the use of discrete and distributed Raman amplification for S-band transmission. Distributed S-band amplification in low-loss fiber improves the effective noise figure of the system. However, in multiband transmission, interband Raman scattering produces S-band power depletion and crosstalk, issues that must be addressed in the design of future systems.","PeriodicalId":347952,"journal":{"name":"Optical Fiber Communication Conference and Exhibit","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128249997","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 : 2002-03-17DOI: 10.1109/OFC.2002.1036478
D. Waddy, Liang Chen, X. Bao
The PMD dynamics in aerial fiber can be well modeled by highly mode coupled wave-plates via the mode coupling angle fluctuation described by a Gaussian probability transition function. The RMS mode orientation angle undergoes a Brownian motion in aerial fiber. The fitting parameter K is easily measured and used as a single quantity to describe the dynamical nature of a field optical fiber with sufficient statistics. This allows industry to measure and quantify SOP and PMD correlation when field testing optical fibers. We find the K value for aerial fiber is about an order of magnitude larger than that of the buried fiber.
{"title":"On the dynamics of polarization mode dispersion","authors":"D. Waddy, Liang Chen, X. Bao","doi":"10.1109/OFC.2002.1036478","DOIUrl":"https://doi.org/10.1109/OFC.2002.1036478","url":null,"abstract":"The PMD dynamics in aerial fiber can be well modeled by highly mode coupled wave-plates via the mode coupling angle fluctuation described by a Gaussian probability transition function. The RMS mode orientation angle undergoes a Brownian motion in aerial fiber. The fitting parameter K is easily measured and used as a single quantity to describe the dynamical nature of a field optical fiber with sufficient statistics. This allows industry to measure and quantify SOP and PMD correlation when field testing optical fibers. We find the K value for aerial fiber is about an order of magnitude larger than that of the buried fiber.","PeriodicalId":347952,"journal":{"name":"Optical Fiber Communication Conference and Exhibit","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128644474","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 : 2002-03-17DOI: 10.1109/OFC.2002.1036364
D. Penninckx, E. Caro, O. Audouin, M. Khan, O. Ait-Sab
We have shown that Reed-Solomon forward error correcting codes are best suited for optical packet as they are for optical circuit. However, due to their small size, a careful choice of the RS parameters has to be made. For instance, with our assumptions, standard RS(255, 239) code is not compliant with packets as short as 12,000 bits at 10 Gbit/s. RS(127,111) should be preferred.
{"title":"Forward-error correction for time-slotted optical packets","authors":"D. Penninckx, E. Caro, O. Audouin, M. Khan, O. Ait-Sab","doi":"10.1109/OFC.2002.1036364","DOIUrl":"https://doi.org/10.1109/OFC.2002.1036364","url":null,"abstract":"We have shown that Reed-Solomon forward error correcting codes are best suited for optical packet as they are for optical circuit. However, due to their small size, a careful choice of the RS parameters has to be made. For instance, with our assumptions, standard RS(255, 239) code is not compliant with packets as short as 12,000 bits at 10 Gbit/s. RS(127,111) should be preferred.","PeriodicalId":347952,"journal":{"name":"Optical Fiber Communication Conference and Exhibit","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124729242","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 : 2002-03-17DOI: 10.1109/OFC.2002.1036294
T. Ichigi, M. Oshima, M. Yamashita, J. Okumura, A. Hamajima, O. Mitomi
Summary form only given. We have proposed an X-intersection type optical waveguide switch structure, which has the very wide and thin waveguide core to realize the low crosstalk and the high extinction ratio. The switch also has the two clad layers beneath the core to suppress the scattering at the intersection; the second clad locating under the first clad has lower refractive index than first one. The switch fabricated in fluorinated polyimide showed the crosstalk of less than -40 dB. The extinction ratio was greater than 30 dB with applying the electrical power of 100 mW. The X-type switch can compose the N /spl times/ N matrix switches with a smaller component size and a lower driving power than those of the Y-type switches because the X-type switch requires less numbers of switch elements.
{"title":"Low crosstalk and low driving power x-intersecting type 2 /spl times/ 2 optical waveguide switches","authors":"T. Ichigi, M. Oshima, M. Yamashita, J. Okumura, A. Hamajima, O. Mitomi","doi":"10.1109/OFC.2002.1036294","DOIUrl":"https://doi.org/10.1109/OFC.2002.1036294","url":null,"abstract":"Summary form only given. We have proposed an X-intersection type optical waveguide switch structure, which has the very wide and thin waveguide core to realize the low crosstalk and the high extinction ratio. The switch also has the two clad layers beneath the core to suppress the scattering at the intersection; the second clad locating under the first clad has lower refractive index than first one. The switch fabricated in fluorinated polyimide showed the crosstalk of less than -40 dB. The extinction ratio was greater than 30 dB with applying the electrical power of 100 mW. The X-type switch can compose the N /spl times/ N matrix switches with a smaller component size and a lower driving power than those of the Y-type switches because the X-type switch requires less numbers of switch elements.","PeriodicalId":347952,"journal":{"name":"Optical Fiber Communication Conference and Exhibit","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129736766","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 : 2002-03-17DOI: 10.1109/OFC.2002.1036657
R. Sova, Chang-Seok Kim, J.U. Kang
We have demonstrated a novel all-fiber comb filter with adjustable channel spacing. The filter can be used as an element in a multi-wavelength laser and provide great flexibility in laser design. Both Lyot and Sagnac-Lyot filters have been demonstrated. The Lyot filter provides a large number of wavelength spacings with only a few fiber segments. (e.g. 40 spacings for 4 segment filter) whereas the Sagnac-Lyot filter provides a tunable filter function that is independent of input polarization. Typical values of measured insertion loss were 4 dB and extinction ratio of 15 dB. The insertion loss values can be improved by using low-loss polarization controllers and improving the fusion splicing of the PM/non-PM fiber splices.
{"title":"Tunable all-fiber birefringence comb filters","authors":"R. Sova, Chang-Seok Kim, J.U. Kang","doi":"10.1109/OFC.2002.1036657","DOIUrl":"https://doi.org/10.1109/OFC.2002.1036657","url":null,"abstract":"We have demonstrated a novel all-fiber comb filter with adjustable channel spacing. The filter can be used as an element in a multi-wavelength laser and provide great flexibility in laser design. Both Lyot and Sagnac-Lyot filters have been demonstrated. The Lyot filter provides a large number of wavelength spacings with only a few fiber segments. (e.g. 40 spacings for 4 segment filter) whereas the Sagnac-Lyot filter provides a tunable filter function that is independent of input polarization. Typical values of measured insertion loss were 4 dB and extinction ratio of 15 dB. The insertion loss values can be improved by using low-loss polarization controllers and improving the fusion splicing of the PM/non-PM fiber splices.","PeriodicalId":347952,"journal":{"name":"Optical Fiber Communication Conference and Exhibit","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127038449","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 : 2002-03-17DOI: 10.1109/OFC.2002.1036390
Y. Okabe, H. Sasaki
We experimentally demonstrated a simple WWDM multi/demultiplexer compatible with MT connector and a single-mode fiber array. The photonic circuit is based on a stack of dielectric interference filters and off-axis diffractive optical elements. The reported devices have the following advantages: Devices can be mass-produced at low cost by dicing the stacked dielectric filter and lens. The stringent alignment among wafers is not necessary since the propagating beams are collimated. The photonic circuit is small enough to be directly aligned and attached against a conventional single-mode fiber array with an NIT connector. Experimental results confirmed low insertion loss demonstrating the potential of the proposed optical system for WWDM applications. We're currently working on the cross-talk improvement that may be caused by the limited extinction ratio of stacked dielectric filters. The proposed technology is attractive in new optoelectronic packaging technologies at an intra-cabinet level with the transmission throughput of more than Tbps.
{"title":"A simple wide wavelength division multi/demultiplexer consisting of optical elements","authors":"Y. Okabe, H. Sasaki","doi":"10.1109/OFC.2002.1036390","DOIUrl":"https://doi.org/10.1109/OFC.2002.1036390","url":null,"abstract":"We experimentally demonstrated a simple WWDM multi/demultiplexer compatible with MT connector and a single-mode fiber array. The photonic circuit is based on a stack of dielectric interference filters and off-axis diffractive optical elements. The reported devices have the following advantages: Devices can be mass-produced at low cost by dicing the stacked dielectric filter and lens. The stringent alignment among wafers is not necessary since the propagating beams are collimated. The photonic circuit is small enough to be directly aligned and attached against a conventional single-mode fiber array with an NIT connector. Experimental results confirmed low insertion loss demonstrating the potential of the proposed optical system for WWDM applications. We're currently working on the cross-talk improvement that may be caused by the limited extinction ratio of stacked dielectric filters. The proposed technology is attractive in new optoelectronic packaging technologies at an intra-cabinet level with the transmission throughput of more than Tbps.","PeriodicalId":347952,"journal":{"name":"Optical Fiber Communication Conference and Exhibit","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129169707","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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