633-nm tunable external-cavity diode laser with an intracavity glass plate as the fine-tuning device
633-nm tunable external-cavity diode laser with an intracavity glass plate as the fine-tuning device
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以内腔玻璃板为微调装置的 633 nm 可调谐外腔二极管激光器
DOI：
10.1117/1.1359523
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发表时间：
2001
影响因子：
1.3
通讯作者：
Yi Xu
中科院分区：
文献类型：
--
作者：
Zhixia Chao;Jian Wu;Chunyong Yin;Yi Xu
拍波法布里-珀罗涉仪(BFP I)在非线性误差校正中的应用受到从属He-Ne激光器调谐范围较短的限制。提出了一种633 nm可调谐外腔半导体激光器(ECL)作为BFP I的从激光器。ECL由一个涂有减反射膜的量子阱激光二极管、一个准直透镜和一个Littrow结构的衍射光栅组成。此外，采用内腔玻璃板提供腔内微调，使ECL更方便，因为它更容易对准腔内的光。在光学长度为45 mm时，通过旋转光栅获得了约633 nm的4 nm粗调范围。实验还表明，这种ECL可以工作在单模模式下，并且可以通过倾斜腔内玻璃板在1.8 GHz的频率范围内连续调谐。
The application of beatwave Fabry-Perot interferometers (BFPIs) to nonlinearity error calibration is limited by the short tuning range of the slave He-Ne laser. In this paper, a 633-nm tunable externalcavity diode laser (ECL) is proposed as the slave laser of a BFPI. The ECL consists of an antireflection-coated quantum-well laser diode, a collimating lens, and a diffraction grating in Littrow configuration. In addition, an intracavity glass plate is adopted to provide cavity fine tuning, which makes the ECL more convenient, as it is easier to align the light in the cavity. At an optical length of 45 mm, a coarse-tuning range of 4 nm around 633 nm is obtained by rotating the grating. It is also demonstrated that this ECL can operate in a single-mode regime and can be continuously tuned over a frequency range of 1.8 GHz by tilting the intracavity glass plate.