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用于干涉测量的光栅外腔半导体激光器
Authors
谢福增
赵伟瑞
Publication date
1 January 2004
Publisher
Abstract
研制了用于光干涉测量的单稳频、窄线宽光栅外腔半导体激光器(LD).它由出光面镀有增透膜的单管半导体激光器、光束校正准直系统、闪耀光栅、注入电流驱动系统及温度控制系统组成.闪耀光栅作为外腔光反馈元件对单管半导体激光器输出的纵模进行选择,使之工作在单纵模状态.外腔的引入还使输出光的谱线宽度得以大大压窄.注入电流驱动系统为半导体激光器提供工作电流.温度控制系统由双层温控组成.第一层用于控制单管半导体激光器管芯温度;另一层用于及时带走第一层温控产生的热量,并消除环境温度影响,使外腔温度稳定.该温控系统可使所构成激光器的温度稳定在1‰℃量级.对研制的外腔半导体激光器的特性进行测试,其输出功率恒定、模式单一稳定、谱线宽度优于1.4 MHz
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Last time updated on 29/11/2016