Switchable semiconductor optical fiber laser incorporating AWG and broadband FBG with high SMSR

• Main Authors: Ahmad, Harith, Zulkifli, Mohd Zamani, Thambiratnam, K., Abdul Latif, Amirah, Harun, Sulaiman Wadi
• Format: Article
• Language: English; English
• Published: Institute of Physics Publishing 2009
• Subjects: QC Physics
• Online Access: http://irep.iium.edu.my/84358/1/Switchable%20semiconductor%20optical%20fiber%20laser.pdf; http://irep.iium.edu.my/84358/7/84358_Switchable%20semiconductor%20optical%20fiber%20laser%20incorporating%20AWG%20and%20broadband%20FBG%20with%20high%20SMSR.pdf; http://irep.iium.edu.my/84358/; https://iopscience.iop.org/article/10.1002/lapl.200910024

In this paper we propose and demonstrate a switchable wavelength fiber laser (SWFL) using a semiconductor optical amplifier (SOA) together with an arrayed waveguide grating (AWG). The proposed SOA-based SWFL is capable of generating up to 14 lasing channels from 1530.1 nm to 1534.9 nm at a channel spacing of 0.8 nm (100 GHz) and a bandwidth of 11.8 and 10.2 nm respectively. The EDFA-based SWFL has a higher peak power at –5 dBm, while to SOA-based SWFL has a peak power of only –10 dBm. However, the SOA-based SWFL exhibits a much better SMSR of between 10 to 20 dB as compared to the SMSR of the EDFA-based SWFL due to the inhomogeneous broadening properties of the SOA.