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１引言半导体激光模块，是指在一个密封单元内包含了激光器、阻抗匹配、功率监测、热电制冷等电路的功能部件。它被广泛用于HFC网络上的光端机中，桥接光纤与同轴电缆，从而提高宽带电视信号的传输距离，改善传输质量和系统可靠性。模块中的核心单元是半导体激光器，作为线性光
1 Introduction The semiconductor laser module refers to the functional unit that contains the laser, impedance matching, power monitoring, thermoelectric cooling and other circuits in a sealed unit. It is widely used in the HFC network on the optical transceiver, bridging optical fiber and coaxial cable, thereby increasing the transmission distance of broadband television signals to improve the transmission quality and system reliability. The core unit in the module is a semiconductor laser as linear light