상세정보
학술지
Selenide Glass Optical Fiber Doped with Pr3+ for U-Band Optical Amplifier
- 발행일
- 200508
- 출처
- ETRI Journal, v.27 no.4, pp.411-417
- ISSN
- 1225-6463
- 출판사
- 한국전자통신연구원 (ETRI)
- 협약과제
- 04MB6100, L+ 밴드대 광증폭기용 광섬유 및 소자 개발, 안준태
- 초록
- Pr3+-doped selenide glass optical fiber, which guarantees single-mode propagation of above at least 1310 nm, has been successfully fabricated using a Ge-Ga-Sb-Se glass system. Thermal properties such as glass transition temperature and viscosity of the glasses have been analyzed to find optimum conditions for fiber drawing. Attenuation loss incorporating the effects of an electronic band gap transition, Rayleigh scattering, and multiphonon absorption has also been theoretically estimated for the Ge-Ga-Sb-Se fiber. A conventional double crucible technique has been applied to fabricate the selenide fiber. The background loss of the fiber was estimated to be approximately 0.64 dB/m at 1650 nm, which can be considered fairly good. When excited at approximately 1470 nm, Pr3+-doped selenide fiber resulted in amplified spontaneous emission and saturation behavior with increasing pump power in a U-band wavelength range of 1625 to 1675 nm.
- KSP 제안 키워드
- 1310 nm, 5 nm, Attenuation loss, Double crucible technique, Fiber drawing, Glass transition temperature, Mode propagation, Optical amplifier, Optical fiber, Optimum condition, Pump power