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Optical Amplifiers and Their Applications最新文献

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Conversion Efficiency and Noise in Erbium-Doped Fiber Power Amplifiers 掺铒光纤功率放大器的转换效率与噪声
Optical Amplifiers and Their Applications Pub Date : 1992-05-22 DOI: 10.1364/oaa.1991.the3
B. Pedersen, M. L. Dakes, W. Miniscalco
{"title":"Conversion Efficiency and Noise in Erbium-Doped Fiber Power Amplifiers","authors":"B. Pedersen, M. L. Dakes, W. Miniscalco","doi":"10.1364/oaa.1991.the3","DOIUrl":"https://doi.org/10.1364/oaa.1991.the3","url":null,"abstract":"There has been a growing awareness of the importance of Er3+-doped fibers as power amplifiers in many applications including wavelength- and frequency-multiplexed systems as well as distribution systems with large fanouts [1]. This is a consequence of their excellent behavior under highly saturated conditions: immunity to crosstalk and high signal output powers. The characteristics of fiber power amplifiers, however, have not been extensively investigated. Relevant parameters include the operational configuration (forward, backward or bidirectional pumping), the signal and pump wavelength, fiber composition, fiber index and Er3+-doping profile. Due to the high cost of pump lasers and their limited power, the paramount consideration for a power amplifier is efficiency. The signal-to-noise ratio is also of importance, particularly in analog applications such as the AM-VSB systems now favored for video distribution [2], We have investigated both these properties using an accurate numerical model and measured input parameters. The optimum waveguides have been determined for both 980 nm and 1480 nm pumping, and the effects of confined Er3+-doping have also been elucidated.","PeriodicalId":308628,"journal":{"name":"Optical Amplifiers and Their Applications","volume":"1 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":"123308911","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
Bit-Error-Rate Measurements of a Multi-Thousand-Kilometer Fiber-Amplifier Transmission System Using a Circulating Loop 使用循环回路的几千公里光纤放大器传输系统的误码率测量
Optical Amplifiers and Their Applications Pub Date : 1992-05-22 DOI: 10.1364/oaa.1991.tha5
N. Bergano, J. Aspell, C. Davidson, P. Trischitta
{"title":"Bit-Error-Rate Measurements of a Multi-Thousand-Kilometer Fiber-Amplifier Transmission System Using a Circulating Loop","authors":"N. Bergano, J. Aspell, C. Davidson, P. Trischitta","doi":"10.1364/oaa.1991.tha5","DOIUrl":"https://doi.org/10.1364/oaa.1991.tha5","url":null,"abstract":"Recently, we reported the results of a 2.4 Gb/s and 5 Gb/s feasibility demonstration of long distance erbium-doped fiber amplifier (EDFA) transmission systems using a circulating loop[1] The significance of this experiment was threefold. First, it demonstrated that high bit rate all-optical EDFA transmission systems are capable of achieving transoceanic distances. Second, it demonstrated a new measurement technique in which bit-error-rate (BER) is measured in a circulating loop. And, third, it achieved a new record in bit rate distance products.","PeriodicalId":308628,"journal":{"name":"Optical Amplifiers and Their Applications","volume":"125 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":"123467853","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
The Effect of Pump Induced Temperature Variation on Erbium-Doped Fiber Amplifiers 泵浦诱导温度变化对掺铒光纤放大器的影响
Optical Amplifiers and Their Applications Pub Date : 1992-05-22 DOI: 10.1364/oaa.1991.fd4
S. Nishi, H. Masuda, J. Nakajima, K. Aida
{"title":"The Effect of Pump Induced Temperature Variation on Erbium-Doped Fiber Amplifiers","authors":"S. Nishi, H. Masuda, J. Nakajima, K. Aida","doi":"10.1364/oaa.1991.fd4","DOIUrl":"https://doi.org/10.1364/oaa.1991.fd4","url":null,"abstract":"The temperature increase of an erbium-doped fiber by 1.48 µm pumping was measured. The mechanism of heat generation and its influence on amplification characteristics are discussed.","PeriodicalId":308628,"journal":{"name":"Optical Amplifiers and Their Applications","volume":"4 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":"121073378","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
Combined Effect of Self-Phase Modulation and Dispersion in SLA Post-Amplified Transmission Systems 自相位调制和色散在SLA后放大传输系统中的联合效应
Optical Amplifiers and Their Applications Pub Date : 1992-05-22 DOI: 10.1364/oaa.1991.fa6
C. Medeiros, J. O'Reilly
{"title":"Combined Effect of Self-Phase Modulation and Dispersion in SLA Post-Amplified Transmission Systems","authors":"C. Medeiros, J. O'Reilly","doi":"10.1364/oaa.1991.fa6","DOIUrl":"https://doi.org/10.1364/oaa.1991.fa6","url":null,"abstract":"In this paper we consider the performance implications of using semiconductor laser amplifiers (SLAs) as post-transmitter power amplifiers in long-haul directly modulated optical systems operating in the 1.55μm region. The combined effect of the dispersion, nonlinear self phase modulation, attenuation and the inherent SLA nonlinearity is numerically investigated.","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":"127350051","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
Erbium-Doped Fiber Amplifiers Pumped in the 800-nm Band 800纳米泵浦掺铒光纤放大器
Optical Amplifiers and Their Applications Pub Date : 1992-05-22 DOI: 10.1557/PROC-244-215
B. Pedersen, S. Zemon, W. Miniscalco
{"title":"Erbium-Doped Fiber Amplifiers Pumped in the 800-nm Band","authors":"B. Pedersen, S. Zemon, W. Miniscalco","doi":"10.1557/PROC-244-215","DOIUrl":"https://doi.org/10.1557/PROC-244-215","url":null,"abstract":"The performance of fiber amplifiers is extremely sensitive to the material-dependent properties of the pump band. High-power, reliable, low-cost diode lasers are currently only available at 800 nm, a poor pump band for Er3+ due to the low strength of the ground state absorption (GSA) transition and an intense, overlapping excited state absorption (ESA) band. High gains have been achieved with silica fibers by pumping the long-wavelength wing of the GSA band at ≈820 nm [1,2], thereby avoiding the ESA at shorter wavelengths but introducing another problem by reducing the already low GSA cross section at the pump wavelength. Alternatively, the use of other glass host compositions with reduced ESA has been proposed [3]. We have examined both approaches using experimentally determined parameters in a highly quantitative numerical model to compare the performance of Al/P-silica, Ge/P-silica, and fluorophosphate fiber amplifiers. The analysis was performed for co- and bi-directional pumping and included treatments of waveguide design, Er3+ confinement, pump-wavelength dependence of gain and noise figure, and quantum conversion efficiency for power amplifiers.","PeriodicalId":308628,"journal":{"name":"Optical Amplifiers and Their Applications","volume":"94 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":"126076650","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
Fibre Bragg filters for pump rejection and recycling in erbium doped fibre amplifiers 掺铒光纤放大器中用于泵抑制和再循环的光纤布拉格滤波器
Optical Amplifiers and Their Applications Pub Date : 1992-02-27 DOI: 10.1049/EL:19920307
M. Farries, C. Ragdale, D. Reid
{"title":"Fibre Bragg filters for pump rejection and recycling in erbium doped fibre amplifiers","authors":"M. Farries, C. Ragdale, D. Reid","doi":"10.1049/EL:19920307","DOIUrl":"https://doi.org/10.1049/EL:19920307","url":null,"abstract":"Residual pump light emitted from an optical fibre amplifier can be a problem in a telecommunication system. The performance of a receiver can be adversely affected by the residual pump power emitted from a pre-amplifier, which is usually larger than the signal power, because it can cause excess noise and receiver saturation. A pre-amplifier which is designed for optimum gain and minimum noise figure will therefore have a large emission of unabsorbed pump light. If the unabsorbed pump light can be reflected back into the amplifier then the amplifier performance will be increased and the receiver will be free from pump light. We show for the first time how this can be achieved with an efficient wavelength dependent fibre reflection filter.","PeriodicalId":308628,"journal":{"name":"Optical Amplifiers and Their Applications","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126570206","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: 37
Coupling Between Barrier and Quantum Well Energy States in A Multiple Quantum Well Optical Amplifier 多量子阱光放大器中势垒与量子阱能态的耦合
Optical Amplifiers and Their Applications Pub Date : 1992-02-10 DOI: 10.1063/1.106585
N. Tessler, R. Nagar, D. Abraham, G. Eisenstein, U. Koren, G. Raybon
{"title":"Coupling Between Barrier and Quantum Well Energy States in A Multiple Quantum Well Optical Amplifier","authors":"N. Tessler, R. Nagar, D. Abraham, G. Eisenstein, U. Koren, G. Raybon","doi":"10.1063/1.106585","DOIUrl":"https://doi.org/10.1063/1.106585","url":null,"abstract":"Multiple quantum well (MQW) optical amplifiers have recently been demonstrated. It has been shown that these MQW amplifiers have excellent characteristics such as high gain, large saturation power and low noise [1–3]. In addition to being excellent devices, they can serve as convenient tools to study the gain dynamics in an inverted MQW media.","PeriodicalId":308628,"journal":{"name":"Optical Amplifiers and Their Applications","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121436233","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: 43
Strained Layer Quantum Well Semiconductor Optical Amplifiers: Polarization Insensitive Amplification 应变层量子阱半导体光放大器:偏振不敏感放大
Optical Amplifiers and Their Applications Pub Date : 1991-10-01 DOI: 10.1080/01468039108201716
M. Joma, H. Horikawa, M. Nakajima, M. Kawahara, T. Kamijoh
{"title":"Strained Layer Quantum Well Semiconductor Optical Amplifiers: Polarization Insensitive Amplification","authors":"M. Joma, H. Horikawa, M. Nakajima, M. Kawahara, T. Kamijoh","doi":"10.1080/01468039108201716","DOIUrl":"https://doi.org/10.1080/01468039108201716","url":null,"abstract":"Polarization insensitive optical amplification was demonstrated in newly developed semiconductor optical amplifiers which have strained GaInAsP quantum well structures. We tailored the active region of the quaternary strained layer quantum well structure with small biaxially tensile strain of 0.2% in the well layers for polarization insensitive operation.","PeriodicalId":308628,"journal":{"name":"Optical Amplifiers and Their Applications","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133209635","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: 8
Spectral Gain Cross Saturation and Hole-Burning In Wideband Erbium-Doped Fibre Amplifiers 宽带掺铒光纤放大器的光谱增益、交叉饱和和烧孔
Optical Amplifiers and Their Applications Pub Date : 1991-07-01 DOI: 10.1364/oaa.1991.thb1
M. Tachibana, R. Laming, R. R. Morkel, D. Payne
{"title":"Spectral Gain Cross Saturation and Hole-Burning In Wideband Erbium-Doped Fibre Amplifiers","authors":"M. Tachibana, R. Laming, R. R. Morkel, D. Payne","doi":"10.1364/oaa.1991.thb1","DOIUrl":"https://doi.org/10.1364/oaa.1991.thb1","url":null,"abstract":"Cross saturation characteristics are investigated in broadband 1.48 µm pumped and 980nm pumped, gain-shaped\" EDFAs. \"Gain-shaping\" is shown to give a more uniform spectral gain compression on saturation. In addition room temperature spectral gain hole-burning is observed for the first time.","PeriodicalId":308628,"journal":{"name":"Optical Amplifiers and Their Applications","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125838204","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
Amplification Reduction in Fiber Amplifiers Due to Up-Conversion at Er3+-Concentrations Below 1000 ppm. 在Er3+浓度低于1000ppm时，由于上转换导致光纤放大器的放大降低。
Optical Amplifiers and Their Applications Pub Date : 1991-07-01 DOI: 10.1080/01468039108219335
P. Blixt, J. Nilsson, B. Jaskorzyńska, T. Carlnas
{"title":"Amplification Reduction in Fiber Amplifiers Due to Up-Conversion at Er3+-Concentrations Below 1000 ppm.","authors":"P. Blixt, J. Nilsson, B. Jaskorzyńska, T. Carlnas","doi":"10.1080/01468039108219335","DOIUrl":"https://doi.org/10.1080/01468039108219335","url":null,"abstract":"One of the key parameters for optimizing erbium-doped fiber amplifiers (EDFAs) is the Er3+-concentration profile. Below the concentration for onset of component clustering, up-conversion may play a significant role [1]. Recent experiments have shown that up-conversion is a considerable deteriorating mechanism even below an erbium concentration of 1000 ppm by weight","PeriodicalId":308628,"journal":{"name":"Optical Amplifiers and Their Applications","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114432624","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: 7
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