상세정보
학술지
Multi-Wavelength Channel 1.5 μm and 10 Gb/s EMBH DFB-LD Array Module Using SAG Technology
- 발행일
- 201510
- 출처
- Electronics Letters, v.51 no.22, pp.1771-1772
- ISSN
- 0013-5194
- 출판사
- IET
- 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