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Optical Amplifiers and Their Applications最新文献

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A 40 Channel AM-VSB Distribution System with a 21 dB Link Budget 具有21 dB链路预算的40信道AM-VSB分配系统
Optical Amplifiers and Their Applications Pub Date : 1992-05-22 DOI: 10.1364/oaa.1991.fb4
G. Joyce, R. Olshansky, R. Childs, T. Wei
{"title":"A 40 Channel AM-VSB Distribution System with a 21 dB Link Budget","authors":"G. Joyce, R. Olshansky, R. Childs, T. Wei","doi":"10.1364/oaa.1991.fb4","DOIUrl":"https://doi.org/10.1364/oaa.1991.fb4","url":null,"abstract":"An AM-VSB fiber video distribution system combines an erbium-doped fiber power amplifier with a low-noise receiver to attain a 21 dB link budget for 40 channels.","PeriodicalId":308628,"journal":{"name":"Optical Amplifiers and Their Applications","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134506000","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}
引用次数: 5
Preamplified Direct Detection Versus Heterodyne Detection: Can they be Equivalent? 预放大直接检测与外差检测:它们可以等效吗?
Optical Amplifiers and Their Applications Pub Date : 1992-05-22 DOI: 10.1364/oaa.1991.fa2
O. Tonguz, R. Wagner
{"title":"Preamplified Direct Detection Versus Heterodyne Detection: Can they be Equivalent?","authors":"O. Tonguz, R. Wagner","doi":"10.1364/oaa.1991.fa2","DOIUrl":"https://doi.org/10.1364/oaa.1991.fa2","url":null,"abstract":"In this paper the interrelationship of heterodyne receivers and preamplified direct-detection receivers is explained. We show that under certain conditions these two lightwave receiver types have equivalent performance. Furthermore, it is shown that this is a general result which is independent of the modulation format used.","PeriodicalId":308628,"journal":{"name":"Optical Amplifiers and Their Applications","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132909486","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}
引用次数: 3
Pump Configuration and Length Optimization of Erbium-doped Fiber Amplifier for Low Noise and High Power Operation 低噪声高功率掺铒光纤放大器泵浦结构及长度优化
Optical Amplifiers and Their Applications Pub Date : 1992-05-22 DOI: 10.1364/oaa.1991.the4
M. Suyama, I. Yokota, Shigeki Watanabe, H. Kuwahara
{"title":"Pump Configuration and Length Optimization of Erbium-doped Fiber Amplifier for Low Noise and High Power Operation","authors":"M. Suyama, I. Yokota, Shigeki Watanabe, H. Kuwahara","doi":"10.1364/oaa.1991.the4","DOIUrl":"https://doi.org/10.1364/oaa.1991.the4","url":null,"abstract":"In a ultra-long system with cascaded erbium-doped fiber amplifiers(1) (EDFAs), in order to keep a signal-to-noise ratio (SNR) as high as possible, EDFA(2) having high output power and low noise is highly required as a post-amplifier or as an in-line-amplifier. Such an EDFA is also important for optical pre-amplifiers with large dynamic ranges. Although Way et al. reported a low noise figure (NF) in a saturation region under the condition of sufficiently high pump power(3), the relationship between lowering the NF and optimizing the gain of EDFA was not clear. In this paper, we report that an EDFA having both a high output power (+15dBm) and a low NF (6dB) can actually be realized using 1.48μm pump LDs when the EDFA length is optimized to give a maximum gain for large signal power. In addition, we also show that there is a remarkable difference between forward and backward pump in terms of NF characteristics of EDFA in a deep saturation.","PeriodicalId":308628,"journal":{"name":"Optical Amplifiers and Their Applications","volume":"253 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114188529","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}
引用次数: 0
An Optically Preamplified 1 Gbit/s/channel Multichannel Grating Demultiplexer Receiver 光前置放大 1 Gbit/s/channel 多通道光栅解复用器接收器
Optical Amplifiers and Their Applications Pub Date : 1992-05-22 DOI: 10.1364/oaa.1991.fb6
J. King, Y. Kanabar, N. Baker, J. Brannan
{"title":"An Optically Preamplified 1 Gbit/s/channel Multichannel Grating Demultiplexer Receiver","authors":"J. King, Y. Kanabar, N. Baker, J. Brannan","doi":"10.1364/oaa.1991.fb6","DOIUrl":"https://doi.org/10.1364/oaa.1991.fb6","url":null,"abstract":"The Multichannel Grating Demultiplexer (MGD)1 receiver is an attractive component for High Density Wavelength Division Multiplexing (HDWDM) systems. It combines a diffraction grating with an array receiver to provide multiple channel access. However, demultiplexer losses and the need for array operation may lead to insufficient receiver sensitivity for some applications. To improve sensitivity a semiconductor laser amplifier (SCLA) has been included before the MGD. The wide gain spectrum allows a single SCLA to preamplify many parallel HDWDM channels2, while peak optical input, and consequently intensity modulation (IM) crosstalk, is minimised3. The MGD also provides a ~2.6 nm optical filter for the spontaneous emission, reducing its noise contribution at the receiver.","PeriodicalId":308628,"journal":{"name":"Optical Amplifiers and Their Applications","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129751428","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}
引用次数: 2
Noise Characteristics of the EDFA in Gain Saturation Regimes 增益饱和状态下EDFA的噪声特性
Optical Amplifiers and Their Applications Pub Date : 1992-05-22 DOI: 10.1364/oaa.1991.the1
J. Marcerou, H. Fevrier, J. Hervo, J. Auge
{"title":"Noise Characteristics of the EDFA in Gain Saturation Regimes","authors":"J. Marcerou, H. Fevrier, J. Hervo, J. Auge","doi":"10.1364/oaa.1991.the1","DOIUrl":"https://doi.org/10.1364/oaa.1991.the1","url":null,"abstract":"Though erbium-doped fiber amplifiers (EDFA) are very attractive candidates for optical transmissions, one of their important characteristics is the noise properties. These amplifiers generate low noise levels and corresponding noise figures are close to the quantum limit[l,2]. However, a number of applications, such as CATV and transoceanic links, will be highly sensitive to excess noise above this limit. Up to now, noise figures have been experimentally [1,3,4] and theoretically studied in several conditions, such as small-signal or highly-pumped amplifiers[2,5]. But when looking at the behavior of the noise figure in various signal regimes as a function of the amplifier working point, important variations appear [6]. This indicates a highly complex reciprocal influence of the different propagating beams through the amplifying medium. In this paper, we study the noise properties of the EDFA, especially in the transition from small-signal regimes to saturated gain ones. Theoretical results are shown to explain experimental observations.","PeriodicalId":308628,"journal":{"name":"Optical Amplifiers and Their Applications","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130610463","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}
引用次数: 14
Measurement of Polarization Dispersion in the Components of In-Line Erbium Doped Fiber Amplified Links 在线掺铒光纤放大链路中偏振色散的测量
Optical Amplifiers and Their Applications Pub Date : 1992-05-22 DOI: 10.1364/oaa.1991.fe2
J. Bernard, F. Bruyere, Y. Guillon
{"title":"Measurement of Polarization Dispersion in the Components of In-Line Erbium Doped Fiber Amplified Links","authors":"J. Bernard, F. Bruyere, Y. Guillon","doi":"10.1364/oaa.1991.fe2","DOIUrl":"https://doi.org/10.1364/oaa.1991.fe2","url":null,"abstract":"An experimental investigation of polarization dispersion of an in-line erbium doped fiber amplified link has been carried out. Results show a non negligible contribution of the isolators.","PeriodicalId":308628,"journal":{"name":"Optical Amplifiers and Their Applications","volume":"3 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115723633","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}
引用次数: 1
Phase Modulation and Optical Switching by Semiconductor Laser Amplifier 半导体激光放大器的相位调制和光开关
Optical Amplifiers and Their Applications Pub Date : 1992-05-22 DOI: 10.1364/oaa.1991.thc4
A. Labrujere, C. Steenbergen, C. J. Laan
{"title":"Phase Modulation and Optical Switching by Semiconductor Laser Amplifier","authors":"A. Labrujere, C. Steenbergen, C. J. Laan","doi":"10.1364/oaa.1991.thc4","DOIUrl":"https://doi.org/10.1364/oaa.1991.thc4","url":null,"abstract":"Operation of a semiconductor laser amplifier simultaneously as phase modulator and optical switch is proposed. Theoretical and experimental results on performance in saturation are reported.","PeriodicalId":308628,"journal":{"name":"Optical Amplifiers and Their Applications","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128524445","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}
引用次数: 4
Characterization of high bit rate phase modulators based on semiconductor optical amplifiers 基于半导体光放大器的高比特率相位调制器的特性
Optical Amplifiers and Their Applications Pub Date : 1992-05-22 DOI: 10.1364/oaa.1991.thc2
T.N. Nielsen, U. Gliese, B. Mikkelsen, K. Stubkjaer, B. Fernier, P. Doussiere, J. Lafragette
{"title":"Characterization of high bit rate phase modulators based on semiconductor optical amplifiers","authors":"T.N. Nielsen, U. Gliese, B. Mikkelsen, K. Stubkjaer, B. Fernier, P. Doussiere, J. Lafragette","doi":"10.1364/oaa.1991.thc2","DOIUrl":"https://doi.org/10.1364/oaa.1991.thc2","url":null,"abstract":"Optical phase modulation with a semiconductor optical amplifier is investigated. By equalizing the phase response, the 3 dB bandwidth is extended from 600 MHz to 2.5 GHz.","PeriodicalId":308628,"journal":{"name":"Optical Amplifiers and Their Applications","volume":"703 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116119746","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}
引用次数: 4
Gain Characteristics of Lanthanum Co-Doped Erbium Fiber Amplifier 镧共掺铒光纤放大器的增益特性
Optical Amplifiers and Their Applications Pub Date : 1992-05-22 DOI: 10.1364/oaa.1991.wd5
Y. Kimura, M. Nakazawa
{"title":"Gain Characteristics of Lanthanum Co-Doped Erbium Fiber Amplifier","authors":"Y. Kimura, M. Nakazawa","doi":"10.1364/oaa.1991.wd5","DOIUrl":"https://doi.org/10.1364/oaa.1991.wd5","url":null,"abstract":"Recent progress on erbium-doped fiber amplifiers (EDFAs) and their application to optical communications has been very rapid since the EDFA has many advantages such as polarisation-insensitive high gain, a low noisefigure, and low insertion loss.1 It is well known that in order to obtain a broader and relatively flatter gain profile, Aluminum (Al2O3) is co-doped into the core of the fibers.2,3 To make a wavelength independent flat gain profile is very important from the viewpoint of ultrashort pulse amplification and wavelength division multiplexing technique. Payne and Laming investigated a Borolanthanate co-doped EDFA.4 Although LaF3 or La2O3 were used as hosts for Nd ions5~7, detailed gain characteristics of a Lanthanum co-doped Er/SiO2 fiber amplifier have not yet been clarified.","PeriodicalId":308628,"journal":{"name":"Optical Amplifiers and Their Applications","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132407232","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}
引用次数: 1
New Laser Structure for Polarization Insensitive Semiconductor Amplifier with Low Current Consumption 低电流消耗偏振不敏感半导体放大器的新型激光器结构
Optical Amplifiers and Their Applications Pub Date : 1992-05-22 DOI: 10.1364/oaa.1991.we2
P. Doussiere, B. Mersali, A. Accard, P. Garabédian, G. Gelly
{"title":"New Laser Structure for Polarization Insensitive Semiconductor Amplifier with Low Current Consumption","authors":"P. Doussiere, B. Mersali, A. Accard, P. Garabédian, G. Gelly","doi":"10.1364/oaa.1991.we2","DOIUrl":"https://doi.org/10.1364/oaa.1991.we2","url":null,"abstract":"Due to their low current consumption and their intrinsic simplicity polarization insensitive semiconductor travelling wave amplifiers (TWAs) are very attractive components for long haul non regenerated fiber transmissions systems. It appears up to now that only buried stripe with width less than one micron has enabled to obtain high gain and polarization insensitivity for low bias current [1 - 4], However realization of such narrow stripe leads to poor reproducibility in case of conventional laser structure. We have investigated a new structure, called modified double channel planar buried heterostructure (MDCPBH), which allows to process very narrow stripe with much better reproducibility than previously obtained.","PeriodicalId":308628,"journal":{"name":"Optical Amplifiers and Their Applications","volume":"344 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133530512","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}
引用次数: 5
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