Single-mode erbium laser with CW tunability by exploiting saturable absorber and self-injected loop

Yeh, Chien Hung; Luo, Chien Ming; Xie, Yue Ru; Chow, Chi‐Wai

doi:10.1016/j.optcom.2019.124968

Cited by 2 publications

(1 citation statement)

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“…Due to a long fiber length and homogenous broadening of the EDF in the fiber ring laser architecture, unstable dense multi-longitudinal-mode (MLM) signal could be induced [6][7][8][9]. To overcome the drawback and achieve constant SLM output in the EDF based lasers, various approaches have been demonstrated experimentally, such as using the multiple-fiber-ring configuration [10][11][12], employing optical injection technique [13][14][15], applying saturable absorber (SA) based optical filter [16][17][18], utilizing the Mach-Zehnder (MZ) interferometer scheme [19][20][21] and ultra-narrowband optical filter [7,22,23].…”

Section: Introductionmentioning

confidence: 99%

Stabilized single-longitudinal-mode fiber laser with broadband and flat wavelength output

Lin

Chang

et al. 2020

Phys. Scr.

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In this study, we present and experimentally demonstrate an erbium-doped fiber (EDF) quad-fiber-ring (QFR) laser with selectable and flat single-longitudinal-mode (SLM) wavelength output. The designed QFR scheme not only can suppress dense multi-mode oscillation, but also can broaden and flatten the output wavelength covering C- and part of L-bands over a bandwidth from 1519.0 to 1579.0 nm when using a C-band EDF as gain medium. Additionally, the output power, optical signal to signal ratio (OSNR), linewidth, stability and tunability of the proposed EDF laser are also discussed.

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