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设计并研究了一种具有反射波导结构的半导体激光器,探究半导体激光器的最佳锁模和波导反射条件,进行了半导体激光器脉冲激光信号的传输信道模型构建,采用判决反馈均衡器对半导体激光器的波导传输信道进行均衡调制,然后采用匹配滤波检测器进行半导体激光器码间干扰抑制,结合自适应噪声抵消补偿激光波导反射中的时延和幅度失真,实现激光器的优化设计。仿真结果表明,采用该方法进行半导体激光设计,反射波导传输的信道均衡性能较好,激光波束形成的指向性较高,降低了激光传输的失真和干扰,实现高效、稳定的连续反射波导锁模和脉冲激光输出。
A semiconductor laser with a reflection waveguide structure is designed and studied. The optimal mode locking and waveguide reflection conditions of the semiconductor laser are explored. The transmission channel model of the semiconductor laser pulse laser signal is constructed. The waveguide of the semiconductor laser is determined by a decision feedback equalizer Transmission channel for balanced modulation, and then matched filter detector for inter-symbol interference suppression of the semiconductor laser, combined with adaptive noise compensation to compensate the laser waveguide reflection delay and amplitude distortion, to achieve optimal laser design. The simulation results show that this method has good channel equalization performance for semiconductor laser design and reflective waveguide transmission and high directivity of laser beamforming, which can reduce the distortion and interference of laser transmission and realize efficient and stable continuous reflection waveguide mode-locking And pulsed laser output.