Lyot-based Multi-wavelength Fiber Laser

Suhairie Saleh (UniversitiTun Hussein Onn Malaysia)
N. A. Cholan (UniversitiTun Hussein Onn Malaysia)
A. H. Sulaiman (International Islamic University Malaysia)
M. A. Mahdi (Universiti Putra Malaysia)

International Journal of Electrical and Computer Engineering
Vol 7, No 2: April 2017

A multi-wavelength fiber laser which is based on a Lyot filter is experimentally demonstrated. A combination of four-wave mixing in a highly nonlinear fiber and Lyot filter mechanism in the laser cavity is able to generate multi-wavelength with relatively high extinction ratio (ER). At the input current of 100mA, six laser lines with ER more than 5 dB are successfully generated. The wavelength spacing for the multi-wavelength is 0.15nm, corresponding to the characteristics of the Lyot filter used.