Key Laboratory of Broadband Fiber Transmission and Communication Networks, University of Electronic Science and Technology of China, Chengdu 610054, CHN
1 电子科技大学 光电信息学院，四川 成都610054
2 电子科技大学 通信工程学院，四川 成都610054
文章系统地研究了Er3+∶Yb3+共掺磷酸盐玻璃波导的性质, 在稳态情况下建立并求解其准三能级系统的速率方程。利用数值分析的方法模拟了980 nm二极管激光器抽运时输出光功率的特性。计算结果表明：经过优化分析，得到了较高的输出光功率和斜率效率，其阈值功率也比较低。
磷酸盐玻璃 波导激光器 稳态 phosphate glass waveguide laser steady state
Author Affiliations
Abstract
School of Optic-Electronic Information, University of Electronic Science and Technology of China, Chengdu 610054
Transitions of laser diode (LD) pumped Er^(3+)-Yb^(3+) co-doped glass laser are rather complicated. Considering energy transfer between Er^(3+) and Yb^(3+) ions, cross-relaxation, upconversion luminescence, and other transition processes, rate equations of quasi-three energy-level-system of the Er^(3+)-Yb^(3+) co-doped laser are presented. The output characteristics are also calculated and analyzed in detail. The results show that Er^(3+)-Yb^(3+) co-doped phosphate waveguide lasers with high slope efficiency and low threshold can be achieved.
磷酸盐玻璃 波导激光器 稳态 140.3500 Lasers, erbium 140.3580 Lasers, solid-state 140.3380 Laser materials Chinese Optics Letters
2007, 5(7): 418
Author Affiliations
Abstract
Key Laboratory of Broadband Optical Fiber Transmission and Communication Networks, University of Electronic Science and Technology of China, Chengdu 610054
We propose a novel optical time-to-live (TTL) processing scheme using asymmetric Mech-Zehnder interferometer (AMZI) and Fabry-Perot semiconductor optical amplifier (FP-SOA). AMZI transfers M TTL pulses into M-1 pulses and two residual pulses with 6-dB power difference. FP-SOA enhances the power difference between the M-1 pulses to the residual pulses to more than 10 dB. A numerical model is established for verifying the feasibility of this scheme.
光通信 光分组交换 生存时间 法布里-珀罗半导体光放大器 非平衡马赫-曾德尔干涉仪 070.4340 Nonlinear optical signal processing 060.0060 Fiber optics and optical communications Chinese Optics Letters
2007, 5(2): 66
Author Affiliations
Abstract
Key Laboratory of Broadband Optical Fiber Transmission and Communication Networks, University of Electronic Science and Technology of China, Chengdu 610054
A novel label abstraction and erasion scheme based on a Fabry-Perot semiconductor optical amplifier (FP-SOA) is proposed for all-optical separation of the bit-serial label from payload and its performance is investigated by simulation. Important features of this scheme are that it does not make use of any high-speed electronics and only one device is needed. Using this scheme, label abstraction and erasion can be realized with the extinction ratio of 9.72 and 7.05 dB, respectively.
光纤通信 标签提取 标签擦除 光分组交换网络 光标签处理 比特序列型 法布里-珀罗半导体光放大器FP-SOA 060.4510 Optical communications 060.1810 Buffers, couplers, routers,switches, and multiplexers 070.4340 Nonlinear optical signal processing Chinese Optics Letters
2007, 5(1): 14
Author Affiliations
Abstract
Key Laboratory of Broadband Optical Fiber Transmission and Communication Networks, University of Electronic Science and Technology of China, Chengdu 610054
A novel scheme of optical power equalization based on Fabry-Perot semiconductor optical amplifier (FP-SOA) is proposed. Because of the gain characteristic of FP-SOA, real-time controlling mechanism according to input optical power is aborted in the scheme. The simulations show that 10-dB pulse peak power variation can be clamped in less than 1 dB. The influences of injecting current, pulse periods, and pulse width are discussed.
光通信 光功率均衡 光分组交换 半导体光放大器 060.0060 Fiber optics and optical communications 060.2330 Fiber optics communications 060.4370 Nonlinear optics, fibers Chinese Optics Letters
2006, 4(12): 690
