Erbium-doped fiber triple-ring laser configuration with single-longitudinal-mode dual-wavelength output

Abstract

In this investigation, we propose and demonstrate a stabilized single-longitudinal-mode (SLM) dual-wavelength erbium-doped fiber (EDF) laser triple-ring cavity. Here, two fiber Bragg gratings (FBGs) are used inside the fiber cavity to generate dual-wavelength output. In order to complete the SLM output, the triple-ring configuration is utilized for suppressing the densely multi-longitudinal mode (MLM). The output powers and wavelengths of −8.4 and −8.5 dBm and 1535.76 and 1543.28 nm are obtained in the proposed dual-wavelength EDF laser, respectively. Moreover, the stability performances of output power and wavelength in the proposed EDF laser are also discussed.

Spatial-mode switchable, multi-wavelength all-fiber erbium-doped fiber (EDF) laser based on low modal crosstalk mode multiplexer/demultiplexer (MUX/DEMUX)

“…As a result, various approaches have been reported to achieve multi-wavelength oscillation in EDF lasers. Most of these ring fiber laser cavities are based on all-fiber structures such as arrayed waveguide gratings [7], fiber Bragg gratings (FBGs) [8][9][10], Mach-Zehnder interferometers (MZI) [11,12], Fabry-Perot interferometers [13,14], nonlinear fibers [15], tapered fibers [16] and Sagnac interferometers [17,18]. Yeh et al demonstrated a stabilized single-longitudinal-mode (SLM) dual-wavelength EDF laser triple-ring cavity [8].…”