서지주요정보
이중모우드 광섬유 모우드 결합기의 제작 및 특성에 관한 연구 = Fabrication and characterization of mode coupler of two-mode fiber
서명 / 저자 이중모우드 광섬유 모우드 결합기의 제작 및 특성에 관한 연구 = Fabrication and characterization of mode coupler of two-mode fiber / 황인각.
저자명 황인각 ; Hwang, In-Kag
발행사항 [대전 : 한국과학기술원, 1995].
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등록번호

8005121

소장위치/청구기호

학술문화관(문화관) 보존서고

MPH 95034

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초록정보

Two-mode fibers that support two spatial modes are used for several useful applications for which single mode fibers can not be used. Mode couplers, which exchange the energy between the two modes, are fundamental components for the use of two-mode fibers. In this work, mode couplers were fabricated by applying periodic microbends to fibers. The periodic bends were formed by pressing the fiber between two plates having grooves with a phase-matched period. The mode coupling mechanism was analyzed theoretically by a simple model and coupling ratio was calculated by coupled mode equation derived from the Maxwell's equations. Mode couplers were fabricated in two types. One is a tunable coupler which enables us to tune its coupling strength and coupling wavelength. The other is a static coupler having a micro-bending structure which was fixed by arc and therefore maintained without grooved plates. This type is more adequate when stable coupling is needed. Mode coupling over 99% and insertion loss less than 0.22 dB at 1.064 ㎛ were measured. Three examples of application of the mode couplers were demonstrated. A two-mode interferometer using a pair of mode couplers showed sinusoidal output in response to the stain applied to a fiber. A mode coupler with 28 bending points could be used as wavelength notch filter with 100 nm bandwidth. A sinusoidal amplitude modulation of a few MHz was produced by a mode coupler followed by a frequency shifter.

서지기타정보

서지기타정보
청구기호 {MPH 95034
형태사항 ii, 58 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : In-Kag Hwang
지도교수의 한글표기 : 김병윤
지도교수의 영문표기 : Byoung-Yoon Kim
학위논문 학위논문(석사) - 한국과학기술원 : 물리학과,
서지주기 참고문헌 : p. 55-58
주제 Optical fibers.
Amplitude modulation.
모드 결합. --과학기술용어시소러스
광학 섬유. --과학기술용어시소러스
위상 매칭. --과학기술용어시소러스
Couplings.
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