Passively Mode-Locked Fiber Ring Laser Using Semiconductor
Saturable Absorber Mirror¹

P. Z. Liu*, J. Hou, B. Zhang, S. P. Chen, and J. B. Chen

College of Optoelectronic Science and Engineering, National University of Defense Technology,
Changsha 410073, China

*e-mail: lpzxinlan@gmail.com

Received July 27, 2011; in final form, August 13, 2011; published online November 28, 2011

Abstract—We experimentally demonstrate a fiber laser passively mode-locked by a semiconductor saturable
absorber mirror (SESAM) in a ring cavity. A pulse series with a temporal width of 1 ns is generated at a repe-
tition rate of 12.3 MHz. With careful polarization adjustment, the pulse width decreases, the peak power
increases and the spectral sidebands are formed in the optical spectrum. The reason of the phenomenon above
has been analyzed. In addition, the characteristic of the pulse with different length of the Er³⁺ Doped Fiber
(EDF) is studied and the results show that it is reabsorption that causes the laser to shift to longer wavelength
direction when the EDF length increases.

DOI: 10.1134/S1054660X12010100

Pleiades Publishing home page | journal home page | top

If you have any problems with this server, contact webmaster.