Dual-Cavity Dual-Output Multi-Wavelength Fiber Laser
Based on Nonlinear Polarization Rotation Effect¹

S. J. Tan^a, S. W. Harun^{a, b,} *, N. S. Shahabuddin^a, H. Arof^a, and H. Ahmad^b

^a Department of Electrical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia

^b Photonics Research Center, University of Malaya, 50603 Kuala Lumpur, Malaysia

*e-mail: swharun@um.edu.my

Received April 21, 2012; in final form, May 27, 2012; published online September 3, 2012

Abstract—We demonstrate a multi-wavelength fiber laser based on nonlinear polarization rotation (NPR) in
dual-cavity configuration with two output ports. The laser employs a piece of erbium doped fiber (EDF) and
semiconductor optical amplifier (SOA) as the gain medium in a separate cavity. By incorporating PCF in the
dual cavity the non-linear polarization rotation (NPR) effect is enhanced and thus higher output and more oscil-
lating lasing can be achieved. The laser produces three strong lines with a spacing of 2.40 nm and side mode
suppression ratio (SMSR) of more than 10 dB at 1535 nm region. Another output produces 8 lines of optical
comb with a spacing of 0.54 at 1570 nm region.

10.1134/S1054660X12100222

Pleiades Publishing home page | journal home page | top

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