Share Email Print

Proceedings Paper

Yb3+-doped fiber laser with integrated optical cooler
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

The quantum defect caused by the difference between the pump and laser photon energies results in heat generation, which deteriorates the performance of lasers. This effect is very significant in high power lasers, since it can cause the stress-induced refractive index change and temperature-induced gain change. The radiation-balanced technique, in which all photons generated in the laser cycle are annihilated with the cooling cycle, has been proposed to solve the problem in the case of solid-state lasers. Unfortunately, in the radiation-balanced laser the radiated energy increases only linearly with the length of the laser medium. We propose a radically new approach to solve the problem of heat generation in lasers by using a co-doped fiber laser with two pump sources. In this laser Yb3+ ions are responsible for the lasing process, and Tm3+ ions serve as a cooler incorporated in the body of the laser. This new technique provides an exponential growth of radiation along the laser medium leading to almost athermal operation.

Paper Details

Date Published: 4 May 2010
PDF: 7 pages
Proc. SPIE 7686, Laser Technology for Defense and Security VI, 768614 (4 May 2010); doi: 10.1117/12.849835
Show Author Affiliations
Galina Nemova, Ecole Polytechnique de Montréal (Canada)
Raman Kashyap, Ecole Polytechnique de Montréal (Canada)

Published in SPIE Proceedings Vol. 7686:
Laser Technology for Defense and Security VI
Mark Dubinskii; Stephen G. Post, Editor(s)

© SPIE. Terms of Use
Back to Top