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发明授权
CN101526714B 外腔半导体激光器的无调制稳频装置 失效 - 权利终止

外腔半导体激光器的无调制稳频装置
摘要：
一种外腔半导体激光器的无调制稳频装置，由单频窄线宽外腔半导体激光器、法拉第隔离器、第一半波片、偏振分束镜、萨格纳克环、两个光电二极管探测器所组成的差分探测电路、减法电路、比例积分微分处理电路、和开关组成。本发明装置具有结构简单、稳频效果好、成本低等优点。
摘要（英）：

A modulation-free frequency stabilizer of an external cavity semiconductor laser consists of a single frequency narrow-linewidth external-cavity semiconductor laser, a Faraday isolator, a first half-wave plate, a polarization beam splitter, a Sagnac ring, a differential detection circuit consisting of two photoelectric diode detectors, a subtraction circuit, a proportional-integral-differential processing circuit and a switch. The modulation-free frequency stabilizer has the advantages of simple structure, good frequency stabilization effect, low cost and the like.

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