Irradiation test of graphene saturable absorber in mode-locked Er-fiber laser

Dohyun Kim; Nam-Hun Park; Dong-Il Yeom; Jungwon Kim

doi:10.1117/12.2508559

4 March 2019 Irradiation test of graphene saturable absorber in mode-locked Er-fiber laser

Dohyun Kim, Nam-Hun Park, Dong-Il Yeom, Jungwon Kim

Proceedings Volume 10899, Components and Packaging for Laser Systems V; 1089917 (2019) https://doi.org/10.1117/12.2508559
Event: SPIE LASE, 2019, San Francisco, California, United States

Abstract

We examine the radiation-induced properties changes of evanescent-field-interacting type graphene-saturable absorbers (SAs). The graphene-SA inserted to the mode-locked laser was exposed to ₆₀Co gamma-ray radiation up to 1.02 kGy at a 50 Gy/hr dose rate. To see how the graphene-SA affects to the laser performance, the graphene-SA-based mode-locked laser was also monitored simultaneously. The mode-locking was broken at 0.75 kGy irradiation dose, which corresponds to 15.6 years operation in low-earth orbit satellites. The optical properties of the graphene-SA was also compared before and after radiation.

Citation Download Citation

Dohyun Kim, Nam-Hun Park, Dong-Il Yeom, and Jungwon Kim "Irradiation test of graphene saturable absorber in mode-locked Er-fiber laser", Proc. SPIE 10899, Components and Packaging for Laser Systems V, 1089917 (4 March 2019); https://doi.org/10.1117/12.2508559

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