Continuous wave adaptive laser resonators using degenerate four-wave mixing in a diode bar side-pumped Nd:YVO4 amplifier


Hendricks, J., Mailis, S., Shepherd, D.P., Tropper, A.C., Crofts, G.J., Trew, M., Damzen, M.J. and Eason, R.W. (1999) Continuous wave adaptive laser resonators using degenerate four-wave mixing in a diode bar side-pumped Nd:YVO4 amplifier. In, 14th National Quantum Electronics Conference (QE14), Manchester, GB, 06 - 09 Sep 1999.

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Description/Abstract

Self-adaptive laser resonators based on diffraction from a gain grating have shown considerable promise for correction of distortion in high-average-power solid-state laser systems, as well as for spectral and temporal control of the laser radiation [1-4]. In these systems, the gain grating is formed by spatial hole burning caused by interference of coherent beams in the laser amplifier and modulation of the population inversion. The gain grating formation can be used for phase conjugation by using the amplifier in a four-wave mixing geometry [2], for self-pumped phase conjugation by using an input beam in a self-intersecting loop geometry [3] and for formation of a self-starting adaptive oscillator by providing additional feedback from an output coupler and requiring no external optical input. Experimental demonstrations have been performed successfully in several laser systems including flashlamp-pumped and quasi-c.w. pumped neodymium-doped amplifiers [1,2], in laser-pumped titanium-doped sapphire [4] and CO2 lasers. We present for the first time, demonstration of a continuous-wave self-adaptive holographic laser resonator. The operation is based on the very high reflectivities (>100) of a gain grating formed in a diode-bar side-pumped Nd:YVO4 amplifier

Item Type: Conference or Workshop Item (Paper)
Related URLs:
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Q Science > QC Physics
Divisions: University Structure - Pre August 2011 > Optoelectronics Research Centre
University Structure - Pre August 2011 > School of Physics and Astronomy
ePrint ID: 76510
Date Deposited: 11 Mar 2010
Last Modified: 27 Mar 2014 18:55
URI: http://eprints.soton.ac.uk/id/eprint/76510

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