Compact L-band switchable dual wavelength SOA based on linear cavity fiber laser
Document Type
Article
Publication Date
1-1-2019
Abstract
A semiconductor optical amplifier (SOA) based linear cavity L-band dual wavelength fiber laser (DWFL) with a switchable output is proposed and its operation demonstrated. The DWFL is configured as a linear cavity, with a 1 × 24 arrayed waveguide grating together with two optical switches providing channel spacing tunability. An L-band SOA, with a central operating wavelength of 1580 nm and an operation bandwidth of 1500–1640 nm serves as the gain medium of the proposed laser cavity. The DWFL is able to generate a dual-wavelength output, with the widest spacing obtained being 18.7 nm and the narrowest spacing being 0.8 nm. The generated output is highly stable, with only minor power fluctuations of less than 2 dB as well as having a signal-to-noise ratio of 42 dB. The proposed setup would have numerous uses, particularly for sensor applications.
Keywords
SOA, Dual wavelength fiber laser, L-band, Fiber laser
Divisions
PHYSICS
Funders
Ministry of Higher Education, Malaysia: grant GA 010 - 2014 (ULUNG),University of Malaya: grant RU 001 – 2017
Publication Title
Optik
Volume
182
Publisher
Elsevier