ETRI-Knowledge Sharing Plaform

ENGLISH

성과물

논문 검색
구분 SCI
연도 ~ 키워드

상세정보

학술지 Fiber-Optic Rotary Joint and Optical Link for RF-Antenna Measurement
Cited 14 time in scopus Download 0 time Share share facebook twitter linkedin kakaostory
저자
조인귀, 문정익, 한영탁, 김성민, 윤재훈
발행일
201004
출처
IEEE Photonics Technology Letters, v.22 no.7, pp.447-449
ISSN
1041-1135
출판사
IEEE
DOI
https://dx.doi.org/10.1109/LPT.2010.2040985
협약과제
09MR6600, 무선통신 ERP/EIRP 측정기술 및 기준 연구, 윤재훈
초록
A practical optical rotary joint and optical links were prepared for an antenna measurement. The rotational variation loss of the optical rotary joint depends on the mechanical misalignments. To achieve 0.2 dB or less rotational variation loss, we proposed a new structure that has a noncontact interface using two size-mismatched fibers without a lens. The optical links are made of a distributed-feedback laser diode, a PIN-photodetector, and single-mode fiber jumper cords. The proposed rotary joint has very low rotational variation loss. The optical links are sufficiently stable to be applied to the antenna measurement. We verified that the rotary joint and optical links can be adopted in RF antenna test applications. © 2010 IEEE.
키워드
Distributed-feedback laser diode (DFB-LD), Electrooptical, Fiber-optic rotary joint (FORJ), Optical fiber, Optical fiber link, Photodetector (PD)
KSP 제안 키워드
Antenna Measurements, Distributed feedback lasers(DFBs), Fiber optic, Laser diode(LD), Optical fiber link, RF Antenna, Rotary joint, Single-mode fiber(SMF), optical link