Vertical-Cavity Surface-Emitting 1.55-μm Lasers Fabricated by Fusion
- Connector Optics LLC (Russian Federation)
- Russian Academy of Sciences, Ioffe Physical Technical Institute (Russian Federation)
- RTI-Research SA (Switzerland)
- Warsaw University of Technology, Institute of Telecommunications, Faculty of Electronics and Information Technology (Poland)
- OAO OKB-Planeta (Russian Federation)
- VI Systems GmbH (Germany)
The results of studies on fabrication of vertical-cavity surface-emitting 1.55-μm lasers by fusing AlGaAs/GaAs distributed-Bragg-reflector wafers and an active region based on thin In{sub 0.74}Ga{sub 0.26} As quantum wells grown by molecular-beam epitaxy are presented. Lasers with a current aperture diameter of 8 μm exhibit continuous lasing with a threshold current below 1.5 mA, an output optical power of 6 mW, and an efficiency of approximately 22%. Single-mode lasing with a side-mode suppression ratio of 40–45 dB is observed in the entire operating current range. The effective modulation frequency of these lasers is as high as 9 GHz and is limited by the low parasitic cutoff frequency and self-heating.
- OSTI ID:
- 22786592
- Journal Information:
- Technical Physics Letters, Journal Name: Technical Physics Letters Journal Issue: 1 Vol. 44; ISSN 1063-7850
- Country of Publication:
- United States
- Language:
- English
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