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Control of thermal effects in fiber lasers by managing doping

A. TANDIROVIÇ GÜRSEL1,* , M. SADETTIN ÖZYAZICI2,*

Affiliation

  1. Department of Electrical and Electronics Engineering, University of Gaziantep, Gaziantep, 27310, Turkey
  2. Department of Electrical and Electronics Engineering, Bahçesehir University, Istanbul, 34353, Turkey

Abstract

Thermal load and non-linear effects put important limitations to the rapid progress of high-power fiber laser technologies. Thermal effect which limits the average power can be minimized by using low-doped, longer fibers with low gain, while the presence of non-linear effects requires the use of high-doped, shorter fibers in order to maximize the peak power. The proposed solution for the problem is to use varying doping levels along the short fiber to circumvent the trade-off between thermal load and non-linear effects. The study shows that two different approaches to mitigate the temperature levels above the intended temperature value..

Keywords

Double-clad fiber lasers, Heat distribution, Absorption coefficient, Doping management.

Submitted at: July 21, 2014
Accepted at: Jan. 21, 2015

Citation

A. TANDIROVIÇ GÜRSEL, M. SADETTIN ÖZYAZICI, Control of thermal effects in fiber lasers by managing doping, Journal of Optoelectronics and Advanced Materials Vol. 17, Iss. 1-2, pp. 39-44 (2015)