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학술지 Multi-Wavelength Channel 1.5 μm and 10 Gb/s EMBH DFB-LD Array Module Using SAG Technology
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저자
권오기, 오수환, 김기수, 이철욱, 임영안, 남은수
발행일
201510
출처
Electronics Letters, v.51 no.22, pp.1771-1772
ISSN
0013-5194
출판사
IET
DOI
https://dx.doi.org/10.1049/el.2015.3000
협약과제
15MB1500, 스마트 데이터센터용 차세대 광-전 모듈 기술, 남은수
초록
A multi-wavelength channel distributed feedback laser diode array (DFB-LDA) for the low-cost and low-power consumption applications of WDM-based datacentre networks is reported. The gain spectrum and lasing wavelength of each channel are controlled by using selective area growth and E-beam lithography techniques, respectively. To reduce the operation current and parasitic capacitance of the proposed array, an etched mesa buried hetero-structure (EMBH) is introduced. From this study, it was found that an eight-channel 300 μm long {\\lambda}/4-shifted DFB-LDA has a threshold current of 10 짹 1.5 mA and a side mode suppression ratio of over 50 dB at a current of 50 mA for all channels. A transmission test for this LDA showed a clear eye opening with a dynamic extinction ratio of over 4.5 dB at 10 Gb/s after a 2 km transmission.
KSP 제안 키워드
Distributed feedback laser diode, Distributed feedback lasers(DFBs), E-beam Lithography, Gain spectrum, Laser diode(LD), Laser diode array, Low-cost, Parasitic Capacitance, Selective area growth, Threshold current, datacentre networks