We report a demonstration of non-cascade electrically pumped mid-IR lasers employing W active wells in conjunction with broadened-waveguide separate-confinement regions. Lasers were grown on GaSb substrates and had 5 or 10 active periods sandwiched between broadened-waveguide separate confinement regions and quaternary optical cladding layers. The laser bars were processed into 100-/spl mu/m wide stripes, cleaved to a cavity length of 1 mm, and mounted junction side down. Lasing was obtained on a number of devices from different laser bars. Both pulsed measurements with 0.5-1 s current pulses applied at a repetition rate of 200 Hz and cw experiments were performed. Spectral characterization indicated a lasing wavelength of 3.18 /spl mu/m at a temperature of 265 K for the 5-well laser, and 3.28 /spl mu/m at T= 290 K for the 10-well device.


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    Title :

    Broadened-waveguide W quantum-well diode lasers operating at /spl lambda/=3.2 /spl mu/m


    Contributors:
    Lee, H. (author) / Menna, R.J. (author) / Martinelli, R.U. (author) / Garbuzov, D.Z. (author) / Connolly, J.C. (author)


    Publication date :

    1999-01-01


    Size :

    140654 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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