N. S. Shahabuddina, S. J. Tana, M. A. Ismaila, H. Ahmadb, Z. Yusoffc, and S. W. Haruna, b, *
a Department of Electrical Engineering, Faculty of Engineering, University of Malaya 50603 Kuala Lumpur, Malaysia
b Photonics Research Center, Physics Department, University of Malaya 50603 Kuala Lumpur, Malaysia
c Faculty of Engineering, Multimedia University, 63100 Cyberjaya, Selangor
*e-mail: swharun@um.edu.my
Received February 28, 2012; published online June 12, 2012
Abstract—A nonlinear polarization rotation (NPR) based multi-wavelength laser source is demonstrated using
a semiconductor optical amplifier (SOA) and photonic crystal fiber (PCF). The SOA acts as not only the gain
medium but also the phase retarder for multi-wavelength oscillation in conjunction with an isolator. The incor-
poration of PCF improves the NPR effect and thus assists in the multiwavelength generation. The wavelength
spacing reduces from 4.82 to 2.76 nm as the PCF length increases from 50 to 100 m. With a 100m long PCF,
the proposed laser produces at least 42 lasing wavelengths with optical signal to noise ratio of more than 10 dB.
DOI: 10.1134/S1054660X12070110
Pleiades Publishing home page | journal home page | top
If you have any problems with this server, contact webmaster.