Measurements and analysis of sidemode noise for a diode laser in an external grating cavity

Clifford E. Fairchild; Edward Zubek; David H, McIntyre

doi:10.1117/12.547168

25 May 2004 Measurements and analysis of sidemode noise for a diode laser in an external grating cavity

Clifford E. Fairchild, Edward Zubek, David H, McIntyre

Proceedings Volume 5468, Fluctuations and Noise in Photonics and Quantum Optics II; (2004) https://doi.org/10.1117/12.547168
Event: Second International Symposium on Fluctuations and Noise, 2004, Maspalomas, Gran Canaria Island, Spain

Abstract

We measure variations in optical and radio frequency (rf) noise for a diode laser operating single mode in an external grating cavity (EGC). The laser operates at fixed current and temperature; and its frequency is varied within a single EGC mode by changing the length of the EGC using a piezo-electric transducer. The major features of the rf noise spectrum are a doublet occurring near the EGC mode separation, and its multiples, and a low frequency rf continuum in the 0-100 MHz frequency range. The optical spectrum, which is measured using a scanning Fabry-Perot interferometer, consists of the lasing mode and subthreshold nonlasing sidemodes. The origin of these sidemodes is four-wave mixing in the laser crystal. As the laser frequency is varied within a given EGC mode, the features of the rf spectra and the optical sidemode spectra all vary systematically. Some of the observed variations can be explained simply and others cannot.

Citation Download Citation

Clifford E. Fairchild, Edward Zubek, and David H, McIntyre "Measurements and analysis of sidemode noise for a diode laser in an external grating cavity", Proc. SPIE 5468, Fluctuations and Noise in Photonics and Quantum Optics II, (25 May 2004); https://doi.org/10.1117/12.547168

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available