Title :
Space radiation effects on a semiconductor saturable absorber
Author :
Yoon-Soo Jang ; Seung-man Kim ; Joohyung Lee ; Keunwoo Lee ; Seongheum Han ; Young-Jin Kim ; Seung-Woo Kim
Author_Institution :
Dept. of Mech. Eng., Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon, South Korea
fDate :
June 30 2013-July 4 2013
Abstract :
The gamma-ray induced behavior of a saturable absorber in outer space was tested by pump-probe experiments using a femtosecond laser. The test reveals that after gamma-ray exposure of ~120 krad, the modulation depth and saturation fluence of the saturable absorber vary from 6 to 3 % and 40 to 105 μJ/cm2, respectively, without no conceivable change in the relaxation time.
Keywords :
gamma-ray effects; optical elements; optical saturable absorption; femtosecond laser; gamma ray induced behavior; modulation depth; pump probe experiments; saturation fluence; semiconductor saturable absorber; space radiation effect; Gamma-rays; Laser excitation; Measurement by laser beam; Modulation; Semiconductor device measurement; Semiconductor lasers; Ultrafast optics;
Conference_Titel :
Lasers and Electro-Optics Pacific Rim (CLEO-PR), 2013 Conference on
Conference_Location :
Kyoto
DOI :
10.1109/CLEOPR.2013.6600596
