Self-Q-switched single-longitudinal-mode erbium-doped fiber laser
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.
Fields of Study & Subjects
Photonic Crystal and Fiber Optics
Advanced Fiber Laser Technologies
Advanced Fiber Optic Sensors
Publication details
- Journal / source
- Optics Continuum
- Publisher
- Optica Publishing Group
- Volume
- 5
- Issue
- 2
- Pages
- 749–749
- Publication date
- 28 January 2026
- Language
- EN