Abstract

The cancellation of resonant intensity noise, from a few kHz up to several GHz, is reported using a second-harmonic generation (SHG) buffer reservoir in a Nd:YAG solid-state laser. This approach is shown to be well suited and easily optimizable for reducing the excess noise lying at the laser relaxation oscillations as well as that originating from the beating between the lasing mode and nonlasing adjacent longitudinal modes. A thorough analysis of noise spectra of both laser and SHG signals confirms definitely that noise reduction is a consequence of a deep laser dynamics modification rather than noise evacuation mechanism.

© 2015 Optical Society of America

Intensity noise cancellation in solid-state laser at 1.5  μm using SHG depletion as a buffer reservoir

Kevin Audo and Mehdi Alouini
Appl. Opt. 57(7) 1524-1529 (2018)

Buffer reservoir approach for cancellation of laser resonant noises

Abdelkrim El Amili, Goulc’hen Loas, Lucien Pouget, and Mehdi Alouini
Opt. Lett. 39(17) 5014-5017 (2014)

Analytical modeling of dual-frequency solid-state lasers including a buffer reservoir for noise cancellation

Kevin Audo, Abdelkrim El Amili, and Mehdi Alouini
Opt. Express 26(7) 8805-8820 (2018)

Reduction of residual excess noise in class-A lasers using two-photon absorption

Kévin Audo, Abdelkrim El Amili, Ghaya Baili, Daniel Dolfi, and Mehdi Alouini
Opt. Lett. 41(18) 4237-4240 (2016)

Experimental evidence and theoretical modeling of two-photon absorption dynamics in the reduction of intensity noise of solid-state Er:Yb lasers

Abdelkrim El Amili, Gaël Kervella, and Mehdi Alouini
Opt. Express 21(7) 8773-8780 (2013)