Chinese Journal of Lasers B, 1998, 7 (1): 79, 网络出版: 2006-10-18  

A Comparison of SRS effects between Uni-and Bi-directional WDM Transmission SystemsNew Silver Halide Sensitized Gelatin Material: Its Processing

A Comparison of SRS effects between Uni-and Bi-directional WDM Transmission SystemsNew Silver Halide Sensitized Gelatin Material: Its Processing
作者单位
1 Department of Electronics, Peking University, National Laboratory of Local Fiber-Optic Communication Networks and Advanced Optical Communication Systems, Beijing 100871
2 Information Optics Institute, Sichuan University, Chengdu 610064
3 Department of Physics, Guangxi University, Nanning 530004
摘要
Abstract
Stimulated Raman Scattering(SRS) effects in uni and bidirectional wavelength division multiplexing(WDM) transmission systems (with and without the cascaded EDFAs) are compared. Both numerical and analytical methods are used and the results are agreed with each other very well. It shows that the terminal behavior of SRS effects in a bidirectional system is the same as that of a corresponding unidirectional system if the locations of EDFAs are symmetrical.A new high-resolution-silver-halide (HRSH-Ⅱ) material is produced, which has proper initial hardness for fabricating silver halide sensitized gelatin (SHSG) holograms. A modified processing technique is presented, which would avoid high noise by soaking the gelatin in hot water. Experimental results for SHSG derived from this new material are presented which show high diffraction efficiency, as high as 80%, and a good spatial frequency response is achieved. The processing mechanisms for the processing technique are discussed.

Zhang Kan, Xie Linzhen, Xu Anshi, Wu Deming, Pang Lin, Guo Lurong, Zhang Weiping, Tang Jiyue, Wang Ketai. A Comparison of SRS effects between Uni-and Bi-directional WDM Transmission SystemsNew Silver Halide Sensitized Gelatin Material: Its Processing[J]. Chinese Journal of Lasers B, 1998, 7(1): 79. Zhang Kan, Xie Linzhen, Xu Anshi, Wu Deming, Pang Lin, Guo Lurong, Zhang Weiping, Tang Jiyue, Wang Ketai. A Comparison of SRS effects between Uni-and Bi-directional WDM Transmission SystemsNew Silver Halide Sensitized Gelatin Material: Its Processing[J]. 中国激光(英文版), 1998, 7(1): 79.

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