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학술지 Fabrication of Butt-Coupled SGDBR Laser Integrated with Semiconductor Optical Amplifier Having a Lateral Tapered Waveguide
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저자
오수환, 고현성, 김기수, 이지면, 이철욱, 권오기, 박상기, 박문호
발행일
200510
출처
ETRI Journal, v.27 no.5, pp.551-556
ISSN
1225-6463
출판사
한국전자통신연구원 (ETRI)
DOI
https://dx.doi.org/10.4218/etrij.05.0905.0003
협약과제
04MB2600, 광엑세스용 광집적 모듈, 오광룡
초록
We have demonstrated a high-power widely tunable sampled grating distributed Bragg reflector (SGDBR) laser integrated monolithically with a semiconductor optical amplifier (SOA) having a lateral tapered waveguide, which is the first to emit a fiber-coupled output power of more than 10 dBm using a planar buried heterostructure (PBH). The output facet reflectivity of the integrated SOA using a lateral tapered waveguide and two-layer AR coating of TiO2 and SiO2 was lower than 3 × 10-4 over a wide bandwidth of 85 nm. The spectra of 40 channels spaced by 50 GHz within the tuning range of 33 nm were obtained by a precise control of SG and phase control currents. A side-mode suppression ratio of more than 35 dB was obtained in the whole tuning range. Fiber-coupled output power of more than 11 dBm and an output power variation of less than 1 dB were obtained for the whole tuning range.
키워드
Butt coupling, Integrated laser, Integrated SOA, PBH structure, SGDBR laser, Tunable laser
KSP 제안 키워드
5 nm, AR coating, Facet reflectivity, Fiber-coupled, High power, Integrated laser, Output power, Phase control, Power variation, Precise control, Sampled grating distributed Bragg reflector(SG-DBR)