Narrow-stripe distributed reflector lasers with first-order vertical grating and distributed Bragg reflectors
2003; Institute of Electrical and Electronics Engineers; Volume: 15; Issue: 8 Linguagem: Inglês
10.1109/lpt.2003.815330
ISSN1941-0174
AutoresH.C. Kim, H. Kanjo, S. Tamura, Shigehisa Arai,
Tópico(s)Semiconductor Quantum Structures and Devices
ResumoNarrow-stripe 1.55-μm wavelength distributed reflector lasers consisting of both distributed Bragg reflectors and vertical grating of the first Bragg order were fabricated. A low threshold current I/sub th/ of 2.8 mA, a differential quantum efficiency /spl eta//sub d/ of 28% from the front facet, and a submode suppression ratio of 44 dB were obtained for structures with a stripe width of 1.3 μm and a cavity length of 150 μm.
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