Switchable dual-wavelength single-longitudinal-mode erbium fiber laser utilizing a dual-ring scheme with a saturable absorber. (9th May 2018)

• Record Type: Journal Article
• Authors: Yang, Zi-Qing; Huang, Tzu-Jung; Chang, Yao-Jen; Yeh, Chien-Hung; Chow, Chi-Wai; Chen, Jing-Heng; Chen, Kun-Huang
• Is Part Of: Laser physics. Volume 28:Number 6(2018:Jun.)
• Publication Date: 2018-05-09
• Subjects: fiber lasers -- fiber optics -- communication optical; Lasers -- Periodicals; 621.36605
• DOI: 10.1088/1555-6611/aab655
• Languages: English
• ISSNs: 1054-660X

Abstract

Abstract: In this work, we propose and demonstrate a switchable dual-wavelength erbium-doped fiber (EDF) ring laser with stable single-longitudinal-mode (SLM) output. Here, a dual-ring (DR) structure with an unpumped EDF of 2 m is designed to achieve SLM oscillation. Five fiber Bragg gratings (FBGs) are applied in the laser cavity serving as the reflective element to generate different dual-wavelength outputs. In the measurement, six sets of generated dual-wavelengths with various mode-spacing (Δ λ ) can be achieved via the five FBGs. Additionally, the stability performance of the proposed EDF DR laser is also demonstrated.