Abstract

A compact and mechanically very robust external cavity diode laser was made by removing any position adjusters such as precision screws and piezo actuators, taking advantage of a cat’s eye retroreflector insensitive to misalignment. Under free-running operation during 150 h, the frequency drift followed natural variation in air pressure with a ratio of $-66.6\pm 0.1\mathrm{MHz}/\mathrm{hPa}$ in a range between 1001.5 and 1013.6 hPa. The ratio was in good agreement with that estimated from variation in the effective cavity length derived from the relation between the pressure and the refractive index of air. These results indicate that an external cavity diode laser with predictable frequency drift was successfully created.

© 2015 Optical Society of America

Continuous frequency tuning of an external cavity diode laser significantly beyond the free spectral range by sweeping the injection current

Akifumi Takamizawa
Opt. Express 32(1) 774-784 (2024)

Mode stability of external cavity diode lasers

Sebastian D. Saliba, Mark Junker, Lincoln D. Turner, and Robert E. Scholten
Appl. Opt. 48(35) 6692-6700 (2009)

Extending the mode-hop-free tuning range of an external-cavity diode laser by synchronous tuning with mode matching

Hai Gong, Zhigang Liu, Yangli Zhou, and Weibo Zhang
Appl. Opt. 53(33) 7878-7884 (2014)

Mode-hopping suppression of external cavity diode laser by mode matching

Hai Gong, Zhigang Liu, Yangli Zhou, Weibo Zhang, and Tao Lv
Appl. Opt. 53(4) 694-701 (2014)

Extending the continuous tuning range of an external-cavity diode laser

Kevin S. Repasky, Amin R. Nehrir, Justin T. Hawthorne, Gregg W. Switzer, and John L. Carlsten
Appl. Opt. 45(35) 9013-9020 (2006)