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학술지 10-Gb/s Tunable External Cavity Laser Using an Asymmetric Ring Resonator Reflector
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저자
윤기홍, 권오균, 김기수, 최병석, 오수환, 김현수, 심재식, Hyung-Moo Park
발행일
201209
출처
IEEE Photonics Technology Letters, v.24 no.17, pp.1481-1483
ISSN
1041-1135
출판사
IEEE
DOI
https://dx.doi.org/10.1109/LPT.2012.2205564
협약과제
12PI1900, 차세대 응용플랫폼을 위한 대용량 WDM-PON시스템 개발, 이상수
초록
We demonstrate a 10-Gb/s tunable external cavity laser with a polymer Bragg reflector and a highly integrated semiconductor gain chip including an asymmetric ring resonator reflector. The output power of the tunable laser is increased by adjusting the coupling strengths of two multimode interferences (MMIs) of the ring resonator reflector. The output power of the tunable laser is 6 mW at gain and semiconductor optical amplifier currents of 100 mA, and at a temperature of 25째 C when the cross-coupling strengths ratios of two MMI couplers are 0.36 and 0.5. The tunable laser successfully provides 10-Gb/s transmissions through 20-km standard single mode fiber (SMF). The power penalty of the tunable laser is less than 2 dB after a 20-km SMF transmission for a 16-nm tuning range. The power penalty variation is less than 2 dB during the blue-shifted wavelength tuning. © 1989-2012 IEEE.
키워드
Electro-absorption modulator, external cavity laser (ECL), InP, ring resonator, tunable laser
KSP 제안 키워드
16 nm, Blue-shifted, Bragg reflector, External cavity laser, Output power, Ring Resonator, Semiconductor optical amplifiers(SOAs), Single-mode fiber(SMF), Tunable lasers, Tuning Range, cross-coupling