Work

Self-Q-switched single-longitudinal-mode erbium-doped fiber laser

Year: 2026

Type: article

Abstract: We propose a simple single-longitudinal-mode (SLM) self-Q-switched erbium-doped fiber laser, where both Q-switching and SLM operation rely on a 1.5-meter high-concentration erbium-doped photonic crystal fiber (ED-PCF), which provides saturable absorption and nonlinear effects. By adjusting the pump power, we achieved stable SLM Q-switched pulse output, with the repetition frequency ranging from 20 kHz to 120 kHz, the pulse width from 5 µs to 500 ns, and the SLM linewidth consistently less than 7.5 MHz.

Source: Optics Continuum

DOI: 10.1364/optcon.586213

Authors: Wencai Li, Yuange Zhang, Ke Zhang

Institutions: Anhui Jianzhu University, Weifang Engineering Vocational College

Language: English

Topic: Advanced Fiber Laser Technologies

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,372

Funder: University Natural Science Research Project of Anhui Province