Increasing the output of a Littman-type laser by use of an intracavity Faraday rotator.
Increasing the output of a Littman-type laser by use of an intracavity Faraday rotator.
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通过使用腔内法拉第旋转器来增加利特曼型激光器的输出。
DOI：
10.1364/ao.43.003910
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发表时间：
2004
期刊：
影响因子：
1.9
通讯作者：
D. Durfee
中科院分区：
文献类型：
--
作者：
R. Merrill;R. Olson;S. Bergeson;D. Durfee
我们提出了一种外腔半导体激光器光栅稳定的方法，结合了Littrow设计的高输出功率与Littman-Metcalf设计的固定输出指向。我们的新方法利用法拉第效应的光隔离器内的外部腔。实验测试和模型，描述了激光器的调谐范围和最佳调谐参数。这种设计的初步测试，导致在短期的线宽为360千赫和37分贝的边模抑制。激光调谐模式跳频超过7 GHz，我们预测，更大的调谐范围是可能的。
We present a method of external-cavity diode-laser grating stabilization that combines the high output power of the Littrow design with the fixed output pointing of the Littman-Metcalf design. Our new approach utilizes a Faraday-effect optical isolator inside the external cavity. Experimental testing and a model that describes the tuning range and optimal tuning parameters of the laser are described. Preliminary testing of this design has resulted in a short-term linewidth of 360 KHz and a side-mode suppression of 37 dB. The laser tunes mode hop free over 7 GHz, and we predict that much larger tuning ranges are possible.