Single-mode generation in the random fiber laser with an embedded microcavity
Abstract
A random fiber laser with an embedded external microresonator is shown to be capable of narrow-band generation with a stable single spectral line. Generation takes place right above the lasing threshold at a wavelength of about 1.55 µm with a characteristic spectral width of less than 10 MHz. Generation wavelength remains stable for thousands of seconds, though it is sensitive to external acoustic noises or vibrations. With power increase, narrow-band generation becomes multimode with a spectrum consisting of numerous narrow lines. Here, the microcavity imposes the mode generation with the mode spacing that corresponds to the microresonator's free spectral range.
Fields of Study & Subjects
Random lasers and scattering media
Photonic and Optical Devices
Orbital Angular Momentum in Optics
Publication details
- Journal / source
- Optics Letters
- Publisher
- Optica Publishing Group
- Volume
- 51
- Issue
- 11
- Pages
- 3140–3140
- Publication date
- 12 May 2026
- Language
- EN