The distortion characteristics of a radio-over-fiber (ROF) system that uses the relative intensity noise (RIN) reduction technique is investigated in detail. The third-order intermodulation (IM3) and spurious free dynamic range (SFDR) characteristics of this system are measured using multi-reflection configurations. It is observed that the maximum deterioration in IM3 is 4 dB. However, SFDR is improved by 7 dB as CNR exceeds 12 dB. Moreover, we measure the adjacent channel leakage power ratio (ACLR) characteristics of this system in the multi-carrier transmission condition. The RIN reduction technique yields an ACLR improvement of 4.5 dB
{"title":"Distortion Evaluation of Frequency-Converted Radio-on-Fiber System Employing RIN Reduction Technique","authors":"N. Taguchi, S. Tanaka, T. Kimura, Y. Atsumi","doi":"10.1109/MWP.2006.346575","DOIUrl":"https://doi.org/10.1109/MWP.2006.346575","url":null,"abstract":"The distortion characteristics of a radio-over-fiber (ROF) system that uses the relative intensity noise (RIN) reduction technique is investigated in detail. The third-order intermodulation (IM3) and spurious free dynamic range (SFDR) characteristics of this system are measured using multi-reflection configurations. It is observed that the maximum deterioration in IM3 is 4 dB. However, SFDR is improved by 7 dB as CNR exceeds 12 dB. Moreover, we measure the adjacent channel leakage power ratio (ACLR) characteristics of this system in the multi-carrier transmission condition. The RIN reduction technique yields an ACLR improvement of 4.5 dB","PeriodicalId":305579,"journal":{"name":"2006 International Topical Meeting on Microwave Photonics","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125057490","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}
We demonstrate a highly sensitive electro-optic (EO) sensing system without balanced detection, which is often employed for sensitivity enhancement. In the present method, sensitivity improvement is realized by modulation depth enhancement based on carrier reduction. This technique allows to increase EO signal intensity with constant received optical power. The sensitivity of 0.23 mV/Hz1/2 is achieved, which is as high as that of balanced detection
{"title":"Sensitivity Enhancement Method for Electro-optic Sensor without Balanced Detection","authors":"K. Sasagawa, M. Tsuchiya","doi":"10.1109/MWP.2006.346560","DOIUrl":"https://doi.org/10.1109/MWP.2006.346560","url":null,"abstract":"We demonstrate a highly sensitive electro-optic (EO) sensing system without balanced detection, which is often employed for sensitivity enhancement. In the present method, sensitivity improvement is realized by modulation depth enhancement based on carrier reduction. This technique allows to increase EO signal intensity with constant received optical power. The sensitivity of 0.23 mV/Hz1/2 is achieved, which is as high as that of balanced detection","PeriodicalId":305579,"journal":{"name":"2006 International Topical Meeting on Microwave Photonics","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116948482","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}
Mixed device/circuit physical model of high-speed p-i-n photodiode, which takes into account self-heating effects and is based on drift-diffusion scheme of charge carrier transport in semiconductor heterostructures and piecewise harmonic balance method has been presented. Based on developed model the design considerations of high-speed high-power surface-illuminated InGaAsP/InP p-i-n photodiode operated at 40 GHz frequency range are provided
{"title":"Theoretical Study of High-speed InGaAs/InP p-i-n Photodiodes for Microwave Generation","authors":"S. Malyshev, A. Chizh, Y. Vasileuski","doi":"10.1109/MWP.2006.346564","DOIUrl":"https://doi.org/10.1109/MWP.2006.346564","url":null,"abstract":"Mixed device/circuit physical model of high-speed p-i-n photodiode, which takes into account self-heating effects and is based on drift-diffusion scheme of charge carrier transport in semiconductor heterostructures and piecewise harmonic balance method has been presented. Based on developed model the design considerations of high-speed high-power surface-illuminated InGaAsP/InP p-i-n photodiode operated at 40 GHz frequency range are provided","PeriodicalId":305579,"journal":{"name":"2006 International Topical Meeting on Microwave Photonics","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124632589","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}
We describe and experimentally demonstrate a technique to suppress the dominant in-band analog distortion in an RF photonic link. The anisotropic electrooptic coefficient of lithium niobate is exploited to modulate orthogonally polarized fields. These fields are then combined to null the third-order distortion. This technique uses a single phase modulator, requiring no external bias or control, for a highly linear photonic microwave relay. The link is limited by fifth-order intermodulation distortion (IMD) instead of third-order IMD. For many scenarios the added complexity of heterodyne optical detection may be an appropriate cost to gain simplicity at the remote end
{"title":"Suppression of Intermodulation Distortion in Phase-Modulated Analog Photonic Links","authors":"B. Haas, T. Murphy","doi":"10.1109/MWP.2006.346518","DOIUrl":"https://doi.org/10.1109/MWP.2006.346518","url":null,"abstract":"We describe and experimentally demonstrate a technique to suppress the dominant in-band analog distortion in an RF photonic link. The anisotropic electrooptic coefficient of lithium niobate is exploited to modulate orthogonally polarized fields. These fields are then combined to null the third-order distortion. This technique uses a single phase modulator, requiring no external bias or control, for a highly linear photonic microwave relay. The link is limited by fifth-order intermodulation distortion (IMD) instead of third-order IMD. For many scenarios the added complexity of heterodyne optical detection may be an appropriate cost to gain simplicity at the remote end","PeriodicalId":305579,"journal":{"name":"2006 International Topical Meeting on Microwave Photonics","volume":"277 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134458799","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}
Since 90's microwave French MoD has supported the evaluation of photonic solutions for military systems at research level. In the same time, Telecommunication market mainly drove fibered laser and photo detector development. The goal is firstly to evaluate these telecommunication components for military applications in terms of performances and robustness, and also to plan on specific developments for applications not covered by these Telecom components. First application field was RF optic links between distant points in military systems. The benefits are in terms of weight, EM immunity, communication capacity. Another area of interest field under study is for array antenna and beam forming: photonic solutions allow wide RF bandwidth system. The objective of this paper is to present an overview of the studies sustained by French MoD and to give the future trends from DGA point of view
{"title":"Microwave Photonics solutions for military systems","authors":"F. Reptin, P. Le Helleye","doi":"10.1109/MWP.2006.346540","DOIUrl":"https://doi.org/10.1109/MWP.2006.346540","url":null,"abstract":"Since 90's microwave French MoD has supported the evaluation of photonic solutions for military systems at research level. In the same time, Telecommunication market mainly drove fibered laser and photo detector development. The goal is firstly to evaluate these telecommunication components for military applications in terms of performances and robustness, and also to plan on specific developments for applications not covered by these Telecom components. First application field was RF optic links between distant points in military systems. The benefits are in terms of weight, EM immunity, communication capacity. Another area of interest field under study is for array antenna and beam forming: photonic solutions allow wide RF bandwidth system. The objective of this paper is to present an overview of the studies sustained by French MoD and to give the future trends from DGA point of view","PeriodicalId":305579,"journal":{"name":"2006 International Topical Meeting on Microwave Photonics","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133248543","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}
J. Kim, S. Kanakaraju, W. Cao, W. Johnson, W. Herman, C.H. Lee
Monolithic distributed balanced traveling wave photodetectors with benzocyclobutene optical waveguides were designed and fabricated for analog fiber optic link applications. High photocurrent of 7.3 mA was measured in a device having 8 MSM PDs. Impulse responses were measured and compared with frequency domain results
{"title":"Monolithic Distributed Balanced Traveling-Wave Photodetectors with Polymer Optical Waveguide for Fiber Optic Link Applications","authors":"J. Kim, S. Kanakaraju, W. Cao, W. Johnson, W. Herman, C.H. Lee","doi":"10.1109/MWP.2006.346510","DOIUrl":"https://doi.org/10.1109/MWP.2006.346510","url":null,"abstract":"Monolithic distributed balanced traveling wave photodetectors with benzocyclobutene optical waveguides were designed and fabricated for analog fiber optic link applications. High photocurrent of 7.3 mA was measured in a device having 8 MSM PDs. Impulse responses were measured and compared with frequency domain results","PeriodicalId":305579,"journal":{"name":"2006 International Topical Meeting on Microwave Photonics","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116409549","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}
P. Hartmann, A. Bothwell, R. Cronin, K. Leeson, A. Loveridge, D. Parkinson, J. Ure, R. Penty, I. White, A. Seeds
We report a wideband (370-2500 MHz) distributed antenna system (DAS) which uses pluggable analogue optical transceivers based on the industry standard small form-factor pluggable (SFP) format. The use of pluggable optics has a number of advantages such as hot-swappability, upgradeability and low initial cost, which has been exploited in the digital world for several years but has not been investigated to the same extend for analogue applications. In addition to the wideband system being RF signal agnostic, the system can also operate over different types of fibre, both SMF and MMF, or coaxial cable, by simply changing the transceiver module
{"title":"Wideband fibre-agnostic DAS using pluggable analogue optical modules","authors":"P. Hartmann, A. Bothwell, R. Cronin, K. Leeson, A. Loveridge, D. Parkinson, J. Ure, R. Penty, I. White, A. Seeds","doi":"10.1109/MWP.2006.346503","DOIUrl":"https://doi.org/10.1109/MWP.2006.346503","url":null,"abstract":"We report a wideband (370-2500 MHz) distributed antenna system (DAS) which uses pluggable analogue optical transceivers based on the industry standard small form-factor pluggable (SFP) format. The use of pluggable optics has a number of advantages such as hot-swappability, upgradeability and low initial cost, which has been exploited in the digital world for several years but has not been investigated to the same extend for analogue applications. In addition to the wideband system being RF signal agnostic, the system can also operate over different types of fibre, both SMF and MMF, or coaxial cable, by simply changing the transceiver module","PeriodicalId":305579,"journal":{"name":"2006 International Topical Meeting on Microwave Photonics","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125518948","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}
Yi-Hsing Peng, W. Cao, V. Yun, W. Herman, C.H. Lee
Transient optical and electronic properties of photoexcited, semiconductor (p-type silicon) and semiconducting polymer (MEH-PPV/PCBM) are measured by terahertz time-domain spectroscopy using a 400 nm optical pump and terahertz probe. The semiconductor data is fit using a simple Drude model. The semiconducting polymer data shows very fast carrier rise time and decay time
{"title":"Transient Properties of Photoexcited Inorganic and Organic Semiconductors using Terahertz Time Domain Spectroscopy","authors":"Yi-Hsing Peng, W. Cao, V. Yun, W. Herman, C.H. Lee","doi":"10.1109/MWP.2006.346501","DOIUrl":"https://doi.org/10.1109/MWP.2006.346501","url":null,"abstract":"Transient optical and electronic properties of photoexcited, semiconductor (p-type silicon) and semiconducting polymer (MEH-PPV/PCBM) are measured by terahertz time-domain spectroscopy using a 400 nm optical pump and terahertz probe. The semiconductor data is fit using a simple Drude model. The semiconducting polymer data shows very fast carrier rise time and decay time","PeriodicalId":305579,"journal":{"name":"2006 International Topical Meeting on Microwave Photonics","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115667970","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}
We have implemented for the first time to our knowledge a tunable photonic filter with negative coefficients based on exploiting the cross-phase modulation (XPM) effect in a SOA Mach-Zehnder interferometer. The positive coefficient is also modulated by the SOA Mach-Zehnder interferometer in order to equalize the frequency responses of both taps. The tuning of the filter FSR is achieved by elemental fibre delay lines or by dispersive optical fibre. Carrier suppression effect has to be considered as a limitation of the operation range of the filter. Cross-phase modulation exhibits less chirp and allows higher operation bandwidth that the filter where the negative coefficients are obtained via cross-gain modulation
{"title":"Tunable all-optical microwave filter using Cross-Phase Modulation in Semiconductor Optical Amplifier Mach-Zehnder interferometer","authors":"M. Manzanedo, J. Mora, B. Ortega, J. Capmany","doi":"10.1109/MWP.2006.346498","DOIUrl":"https://doi.org/10.1109/MWP.2006.346498","url":null,"abstract":"We have implemented for the first time to our knowledge a tunable photonic filter with negative coefficients based on exploiting the cross-phase modulation (XPM) effect in a SOA Mach-Zehnder interferometer. The positive coefficient is also modulated by the SOA Mach-Zehnder interferometer in order to equalize the frequency responses of both taps. The tuning of the filter FSR is achieved by elemental fibre delay lines or by dispersive optical fibre. Carrier suppression effect has to be considered as a limitation of the operation range of the filter. Cross-phase modulation exhibits less chirp and allows higher operation bandwidth that the filter where the negative coefficients are obtained via cross-gain modulation","PeriodicalId":305579,"journal":{"name":"2006 International Topical Meeting on Microwave Photonics","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127627280","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}
C. Lim, A. Nirmalathas, K. Lee, D. Novak, R. Waterhouse
We present and demonstrate a technique to improve the overall dynamic range when transmitting optical single sideband with carrier signals for fiber-radio applications in an access environment. Our proposed technique not only improves the overall carrier-to-interference ratio for the radio systems but also simultaneously enables broadband baseband transmission for access networks. We show simultaneous transmission of two if signals with successful data recovery at 30 GHz with 2.5 Gb/s of baseband data
{"title":"Dynamic Range Improvement for Transmission of Optical Single Sideband Signals with Simultaneous Baseband Transmission for Access Networks","authors":"C. Lim, A. Nirmalathas, K. Lee, D. Novak, R. Waterhouse","doi":"10.1109/MWP.2006.346520","DOIUrl":"https://doi.org/10.1109/MWP.2006.346520","url":null,"abstract":"We present and demonstrate a technique to improve the overall dynamic range when transmitting optical single sideband with carrier signals for fiber-radio applications in an access environment. Our proposed technique not only improves the overall carrier-to-interference ratio for the radio systems but also simultaneously enables broadband baseband transmission for access networks. We show simultaneous transmission of two if signals with successful data recovery at 30 GHz with 2.5 Gb/s of baseband data","PeriodicalId":305579,"journal":{"name":"2006 International Topical Meeting on Microwave Photonics","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130979766","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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