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Detail
Journal Article
Multi‐wavelength channel 1.5 μm and 10 Gb/s EMBH DFB‐LD array module using SAG technology
- Issue Date
- 2015-10
- Citation
- Electronics Letters, v.51, no.22, pp.1771-1772
- ISSN
- 0013-5194
- Publisher
- IET
- Language
- English
- Type
- Journal Article
- Abstract
- 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 Keywords
- Distributed feedback laser diode, Distributed feedback lasers(DFBs), E-beam lithography, Extinction Ratio(ER), Hetero-structure, Low Power consumption, Low-cost, Parasitic Capacitance, Selective area growth, Threshold current, datacentre networks
This work is distributed under the term of Creative Commons License (CCL)
(CC BY)
(CC BY)
