Share Email Print

Proceedings Paper

Experimental investigation of a figure-eight fiber laser with a symmetrical NOLM and highly twisted fiber-in-the-loop
Author(s): Baldemar Ibarra-Escamilla; Olivier Pottiez; Evgeny A. Kuzin; Rubén Grajales-Coutiño; Joseph W. Haus; Roberto Rojas-Laguna
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

We report experimental results that demonstrate the mode-locking operation of a figure eight fiber laser based on a symmetrical nonlinear optical loop mirror (NOLM) with a twisted low-birefringence fiber in the loop. The mode-locking operation is achieved by nonlinear polarization rotation in the NOLM, where the counterpropagating beams accumulate a differential nonlinear phase shift when they have different polarizations. By adjusting a single quarter wave (QW) retarder in the NOLM it was possible to change the NOLM transmission behavior from a maximum to a minimum at low input power. Self-starting mode-locking operation was found for only specific settings of the QW retarder. The pulse repetition frequency was around 0.8 MHz. The mode-locked laser operated stably for hours and the adjustment procedure was straightforward. We achieved stable generation of picosecond pulses with milliwatts of average output power.

Paper Details

Date Published: 23 February 2007
PDF: 9 pages
Proc. SPIE 6453, Fiber Lasers IV: Technology, Systems, and Applications, 645323 (23 February 2007); doi: 10.1117/12.700704
Show Author Affiliations
Baldemar Ibarra-Escamilla, Instituto Nacional de Astrofísica, Optica y Electrónica (Mexico)
Olivier Pottiez, Ctr. de Investigaciones en Optica (Mexico)
Evgeny A. Kuzin, Instituto Nacional de Astrofísica, Optica y Electrónica (Mexico)
Rubén Grajales-Coutiño, Instituto Nacional de Astrofísica, Optica y Electrónica (Mexico)
Joseph W. Haus, Univ. of Dayton (United States)
Roberto Rojas-Laguna, Univ. de Guanajuato (Mexico)

Published in SPIE Proceedings Vol. 6453:
Fiber Lasers IV: Technology, Systems, and Applications
Donald J. Harter; Andreas Tünnermann; Jes Broeng; Clifford Headley, Editor(s)

© SPIE. Terms of Use
Back to Top