Results 91 to 100 of about 15,530 (219)
30-nm wavelength conversion at 10 Gbit/s by four-wave mixing in a semiconductor optical amplifier [PDF]
, 1998 Four-wave mixing (FWM) in semiconductor optical amplifiers (SOAs) is currently the only available strictly transparent wavelength-conversion technique, which is not penalized by phase matching.
D'Ottavi, A. +6 more
core
Secure Communications using Nonlinear Silicon Photonic Keys
, 2018 We present a secure communication system constructed using pairs of nonlinear photonic physical unclonable functions (PUFs) that harness physical chaos in integrated silicon micro-cavities.
Bosworth, Bryan T. +5 more
core +1 more source
Guangtongxin yanjiu, 2006 文章首先介绍了掺铒光纤放大器（EDFA）的结构和工作原理,然后运用能级理论和激光原理,深入全面地分析了影响EDFA增益和噪声的主要因素,得出了EDFA增益和噪声与泵浦功率、泵浦方式、输入信号光功率和掺铒光纤长度等关系的一些重要结论,并且通过实验进一步验证了这些结论;提出了提高EDFA增益,减小噪声系数的方法;最后根据文中得出的结论,设计了一种高增益低噪声的C波段EDFA光路,该光路已经应用于工程实践中。
陈琳, 徐军, 邵晓鹏, 李高峰
doaj
Adaptive Neuro-Fuzzy Based Gain Controller for Erbium-Doped Fiber Amplifiers
Advances in Electrical and Computer Engineering, 2017 Erbium-doped fiber amplifiers (EDFA) must have a flat gain profile which is a very important parameter such as wavelength division multiplexing (WDM) and dense WDM (DWDM) applications for long-haul optical communication systems and networks.
YUCEL, M. +3 more
doaj +1 more source
, 2019 We report the preparation of a 780.2 nm and 852.3 nm laser device based on single-pass periodically poled magnesium-oxide-doped lithium niobate (PPMgO:LN) bulk crystals and diode-laser-seeded fiber amplifiers.
He, Jun, Wang, Junmin, Zhang, Kong
core +1 more source
Guangtongxin yanjiu, 2003 文章介绍了L波段掺铒光纤放大器（EDFA）的理论模型,并根据L波段EDFA的实验结果对理论模型进行了验证,实验结果和理论分析相吻合.
邓韬, 黄德修
doaj
Guangtongxin yanjiu, 2009 文章数值分析了负色散掺铒光纤放大器（EDFA）中基孤子脉冲传输及啁啾特性,给出了一种利用EDFA获得线性啁啾的新方法。数值分析结果发现:增益系数μ1时,基孤子脉冲在EDFA中传输能够获得很好的线性啁啾,并且啁啾的特性受选取的EDFA长度L的影响,L越大时线性啁啾越明显,线性啁啾所占的脉冲区域越窄。最后计算了输出脉冲在啁啾补偿后获得的压缩因子和基座能量比。
陈海涛, 王飞, 邓涛
doaj
Multiple wavelength generation using a compacted hybrid Raman / Bi-EDF amplifier
EPJ Web of Conferences, 2013 A multiple wavelength laser source is generated by a Brillouin seed signal and a compacted hybrid Raman / bismuth-based erbium doped fiber amplifier (Bi-EDFA) in a linear cavity.
Shirazi M. R., Biglary M.
doaj +1 more source
Guangtongxin yanjiu, 2015 为了获得具有高增益、低噪声和增益平坦度良好等特性的宽带混合放大器,分别采用EDFA（掺铒光纤放大器）与FRA（光纤拉曼放大器）理论模型,设计了EDFA+FRA HFA（混合放大器）的结构,搭建了HFA系统,优化了HFA性能参数,研究了HFA的增益、带宽、平坦度和噪声指数等重要性能。通过FRA增益斜率与EDFA增益斜率进行互补,HFA的各项性能指标集中了EDFA和FRA的优点,弥补了各自的不足,这对高速率、大容量和宽带宽的长距离光纤通信具有重要意义。
徐小锋, 刘毓, 贾沛沛
doaj
Guangtongxin yanjiu, 2000 从输出光功率、信号增益、噪声指数等几个方面分析了 C- band全带 EDFA的特性 ,并针对 DWDM系统对 EDFA的各项指标如噪声指数、输出功率、增益锁定、增益平坦等的要求 ,着重分析 EDFA级联后对系统的影响 .实验结果为 :对 32波 DWDM系统 ,EDFA6级级联模拟 5× 2 5d B传输实验 ,增益平坦度为 3.5d B,光信噪比 >2 7d B,信道增减造成增益变化 <0 .6d B.
黄宣泽, 黄德修
doaj