High-power single-wavelength SOA-based fiber-ring laser with an optical modulator

Ooi, H.C. and Ahmad, Harith and Sulaiman, Abdul Hadi and Thambiratnam, Kavintheran and Harun, Sulaiman Wadi (2008) High-power single-wavelength SOA-based fiber-ring laser with an optical modulator. Laser Physics, 18 (11). pp. 1349-1352. ISSN 1054-660X

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Official URL: https://doi.org/10.1134/S1054660X08110261

Abstract

A semiconductor optical amplifier (SOA) fiber-ring laser (SOAFRL) utilizing a fiber-Bragg grating (FBG) and lithium niobate (LiNbO3) modulator is demonstrated. The laser operates at a wavelength of 1547.64 nm, which is equal to the Bragg wavelength in the saturation region. By removing the LiNbO3 modulator in the ring, the laser shows a single-wavelength output, which has a lower peak power. The experimental results show that when reaching the saturation level, the system with the LiNbO3 modulator shows a higher saturation current and peak power compared to that of the system without the modulator. The effect of varying the modulation frequency on the laser output power is investigated. By incorporating the LiNbO3 modulator in the laser cavity, the side-mode suppression ratio (SMSR) of the laser is significantly improved and a higher peak power can be obtained at a higher current.

Item Type: Article
Uncontrolled Keywords: Crystal resonators; Fiber Bragg gratings; Lasers; Light amplifiers; Lithium; Modulation; Niobium compounds; Optoelectronic devices; Ring lasers; Semiconductor lasers
Subjects: Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering
Faculty of Science > Dept of Physics
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 28 Nov 2018 04:13
Last Modified: 08 Apr 2019 05:03
URI: http://eprints.um.edu.my/id/eprint/19736

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