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Noise reduction in solid-state lasers using a SHG-based buffer reservoir
DOI:10.1364/OL.40.001149.png)
Abstract
En 中文
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. (C) 2015 Optical Society of America
Keywords:
INTENSITY NOISE
GENERATION
SUPPRESSION
SPIKING
OUTPUT
CHAOS
POWER
WAVE
NM
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