Widely 70-nm wavelength tunability single-frequency erbium laser utilizing multiple-ring architecture. (December 2019)

• Record Type: Journal Article
• Authors: Yeh, Chien-Hung; Xie, Yue-Ru; Luo, Chien-Ming; Chang, Yao-Jen
• Is Part Of: Optics & laser technology. Volume 120(2019)
• Publication Date: 2019-12
• Subjects: Erbium-doped fiber -- Fiber laser -- Multiple-ring -- Single-longitudinal-mode (SLM) -- Wavelength-tunability; Optics -- Periodicals; Lasers -- Periodicals; Electronic journals; 621.366
• DOI: 10.1016/j.optlastec.2019.105706
• Languages: English
• ISSNs: 0030-3992

Abstract

Highlights: Stable single-longitudinal-mode erbium-doped fiber multiple-ring laser is designed. Using C-band EDF gain medium of proposed laser scheme can achieve C + L bands tuning range. The 3 dB Lorentzian linewidth of 14.9 to 20.4 kHz is attained. Abstract: In this paper, to accomplish the broadly wavelength tunability and single-longitudinal-mode (SLM) operation of erbium-doped fiber (EDF) based laser, the multiple-ring structure is designed and executed. The output power of −7.3 to 5.1 dBm and optical signal to noise ratio (OSNR) of 31.5 to 36.7 dB/0.06 nm are obtained for the proposed EDF laser over the tuning range of 1520.0–1590.0 nm based on the C-band EDF gain medium. In addition, the Lorentzian linewidth of 14.9 to 20.4 kHz is also attained.