论文信息 - Long wavelength GaInAsSb-AlGaAsSb distributed-feedback lasers emitting at 2.84 [micro sign]m

Long wavelength GaInAsSb-AlGaAsSb distributed-feedback lasers emitting at 2.84 [micro sign]m

Room-temperature continuous-wave operation of a singlemode GaInAsSb/GaSb/AlGaAsSb distributed feedback (DFB) laser is presented at a record long emission wavelength for this material system of 2.843 /spl mu/m. The threshold current at 20/spl deg/C is 75 mA. Mode selection was realised by metal gratings laterally patterned to a ridge waveguide. By varying the grating period, DFB emission from 2.738 up to 2.843 /spl mu/m is obtained.

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