A distributed reflector (DR) laser consisting of an active DFB section and a passive DBR section was realized by modulating widths of wirelike active regions. A threshold current as low as 1.5 mA, a differential quantum efficiency from the front facet of 21% and a sub-mode suppression ratio (SMSR) over 50 dB were realized for a stripe width of 3.4 /spl mu/m and a DFB section length of 150.
Low-threshold operation of distributed reflector laser with width modulated wirelike active regions
2004-01-01
239334 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Low-Threshold Operation of Distributed Reflector Laser with Width Modulated Wirelike Active Regions
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