Translator Disclaimer
18 November 2014 Broadband generation by multiple four-wave mixing process due to ASE Q-switching in high-power double-clad ytterbium-doped fiber amplifier
Author Affiliations +
Abstract
Broadband output from 1060nm to 1700nm and cascaded four-wave mixing generated red light pulsing is observed in a fiber amplifier set up consisting of a 5.5m double clad, double D shaped Ytterbium doped fiber, a single clad passive fiber for excess pump absorption and a splitter, both with and without a CW seed. Self-pulsing occurs from ASE due to passive Q-switching by saturable absorption effect of the active fiber and also depends on splice loss. The pulses generate broadband output by multiple four-wave mixing process with maximum broadening efficiency near 1300nm which is the zero dispersion wavelength for silica fiber. Pulses traveling both in forward and backward direction have enough peak power and energy to damage splice points and fiber components. When seeded the self-pulsing and broadband generation is often suppressed but again generate at increased pump powers.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Sourav D. Chowdhury, Nishant Shekhar, Maitreyee Saha, Ranjan Sen, and Mrinmay Pal "Broadband generation by multiple four-wave mixing process due to ASE Q-switching in high-power double-clad ytterbium-doped fiber amplifier", Proc. SPIE 9266, High-Power Lasers and Applications VII, 926610 (18 November 2014); https://doi.org/10.1117/12.2071831
PROCEEDINGS
6 PAGES


SHARE
Advertisement
Advertisement
RELATED CONTENT

High power Yb-doped fiber laser operates at special wavelength
Proceedings of SPIE (September 17 2013)
Unique high-power fiber laser technologies
Proceedings of SPIE (January 12 2005)
Multi spectral lidar (MSL)
Proceedings of SPIE (October 31 2005)

Back to Top