Title :
Asymmetric cladding InGaAs-GaAs-AlGaAs ridge waveguide distributed Bragg reflector lasers with operating wavelengths of 915-935 nm
Author :
Roh, S.D. ; Hughes, J.S. ; Lammert, R.M. ; Osowski, M.L. ; Beernink, K.J. ; Papen, G.C. ; Coleman, J.J.
Author_Institution :
Microelectron. Lab., Illinois Univ., Urbana, IL, USA
fDate :
3/1/1997 12:00:00 AM
Abstract :
The design and operation of InGaAs-GaAs-AlGaAs asymmetric cladding ridge waveguide distributed Bragg reflector lasers is presented. Targeted for the remote sensing of water vapor with absorption lines in the /spl lambda//spl sim/930 nm region, these devices operate CW with threshold currents as low as 11 mA and slope efficiencies as high as 0.37 W/A. They also operate with over 30-dB side-mode suppression, and the typical CW characteristic temperature, T/sub 0/, is 95 K.
Keywords :
Debye temperature; III-V semiconductors; aluminium compounds; claddings; distributed Bragg reflector lasers; gallium arsenide; indium compounds; infrared sources; laser transitions; quantum well lasers; remote sensing by laser beam; ridge waveguides; symmetry; waveguide lasers; 11 mA; 915 to 935 nm; 930 nm; 95 K; CW; CW characteristic temperature; InGaAs DBR QW lasers; InGaAs-GaAs-AlGaAs; InGaAs-GaAs-AlGaAs ridge waveguide distributed Bragg reflector lasers; absorption lines; asymmetric cladding; operating wavelengths; remote sensing; side-mode suppression; slope efficiencies; threshold currents; water vapor; Distributed Bragg reflectors; Gallium arsenide; Gas lasers; Gratings; Optical coupling; Optical sensors; Optical waveguides; Semiconductor lasers; Vertical cavity surface emitting lasers; Waveguide lasers;
Journal_Title :
Photonics Technology Letters, IEEE
