Noise suppression in gain-managed nonlinear amplifiers
Abstract
We investigate the evolution of relative intensity noise (RIN) in a gain-managed nonlinear amplifier (GMNA), achieving ~80 nJ, sub-40 fs pulses with 26.5 dB gain and demonstrating that GMNA exhibits reduced RIN at higher gain, reaching levels below the seed. Spectral measurements reveal a non-uniform RIN distribution across wavelengths. A pump-seed noise model supports the experimental trends and explains the noise reduction mechanisms. These results demonstrate GMNA as a powerful platform for generating low-noise, high-energy ultrafast pulses for a variety of applications.
Fields of Study & Subjects
Acoustic Wave Phenomena Research
Mathematical Analysis and Transform Methods
Underwater Acoustics Research
Publication details
- Journal / source
- Optics Letters
- Publisher
- Optica Publishing Group
- Volume
- 51
- Issue
- 7
- Pages
- 1812–1812
- Publication date
- 23 February 2026
- Language
- EN