980-nm random fiber laser directly pumped by a high-power 938-nm laser diode

Sergey A. Babin; Ekaterina I. Dontsova; Sergey I. Kablukov

doi:10.1117/12.2039192

7 March 2014 980-nm random fiber laser directly pumped by a high-power 938-nm laser diode

Sergey A. Babin, Ekaterina I. Dontsova, Sergey I. Kablukov

Proceedings Volume 8961, Fiber Lasers XI: Technology, Systems, and Applications; 89612F (2014) https://doi.org/10.1117/12.2039192
Event: SPIE LASE, 2014, San Francisco, California, United States

Abstract

A random lasing based on Rayleigh scattering in a passive fiber directly pumped by a high-power laser diode (LD) has been demonstrated. Owing to the random distributed feedback (RDFB) the low-quality LD beam (938 nm) is converted into the high-quality laser output (980 nm). Because of the relatively low excess above the threshold with the available LD, the RDFB laser output is limited in power on 0.5 W level. In the used gradient-index (GRIN) fiber the output beam has 4.5 lower divergence as compared with the pump beam thus demonstrating a new approach for high-power fiber lasers with high-quality output.

Citation Download Citation

Sergey A. Babin, Ekaterina I. Dontsova, and Sergey I. Kablukov "980-nm random fiber laser directly pumped by a high-power 938-nm laser diode", Proc. SPIE 8961, Fiber Lasers XI: Technology, Systems, and Applications, 89612F (7 March 2014); https://doi.org/10.1117/12.2039192

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