Abstract
Diode lasers can be tuned by simultaneous rotation and translation of an external grating. This can be achieved by rotating the grating about a displaced pivot point. We derive the tuning range as a function of pivot point position for various extended cavity geometries. In each case, the geometric problem reduces to the solution of a quadratic equation. For near-infrared wavelengths, placement of the pivot is relatively noncritical for tuning ranges of the order of 10 GHz, but requires millimeter accuracy for a tuning range >100 GHz.
© 1999 Optical Society of America
Full Article | PDF ArticleMore Like This
Erjun Zang, Shaokai Wang, Yang Zhao, Yu Peng, Tao Yang, Ye Li, Jianping Cao, Tianchu Li, and Zhanjun Fang
Appl. Opt. 50(26) 5080-5084 (2011)
Hai Gong, Zhigang Liu, Yangli Zhou, and Weibo Zhang
Appl. Opt. 53(33) 7878-7884 (2014)
Johan Hult, Iain S. Burns, and Clemens F. Kaminski
Appl. Opt. 44(18) 3675-3685 (2005)