Open AccessHigh-efficiency RF signal coupled to a CO2 waveguide slab laser
Author(s) -
R. Villagómez,
Rosa María Tejero López
Publication year - 2005
Publication title -
optics express
Language(s) - Czech
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.13.004607
Subject(s) - materials science , radio frequency , optics , optoelectronics , laser , signal (programming language) , rf power amplifier , waveguide , energy conversion efficiency , electrical engineering , physics , cmos , amplifier , computer science , programming language , engineering
We demonstrate experimentally that a self-sustained radio frequency (RF) signal delivered from our most-compact RF circuit generator is efficiently integrated into a CO2 waveguide laser slab, impedance-matched electrode. The whole circuit uses a common source MOSFET transistor that will be modified for self-sustained oscillations terminated at 50?. RF power is directly integrated into the laser resonant cavity of the laser ceramic-metal slab (the electrode). Measurement showed the power efficiency of the oscillator circuit to be more than 70%, and the overall electrical-to-optical power efficiency conversion was larger than the standard 10%.