Title :
Characteristics of Edge-Emitting Bragg Reflection Waveguide Lasers
Author :
Tong, Cunzhu ; Bijlani, Bhavin J. ; Alali, Sanaz ; Helmy, Amr S.
Author_Institution :
Sr. Dept. of Electr. & Comput. Eng., Univ. of Toronto, Toronto, ON, Canada
Abstract :
We demonstrate experimentally the stable continuous-wave (CW) single-mode operation of Bragg reflection waveguide (BRW) lasers from 10 to 100°C. The threshold characteristics, quantum efficiency, gain, and self-heating characteristics are investigated in detail. Threefold enhancement in the optical confinement is achieved using these BRW structures for a core width two times that of their edge-emitting total internal reflection counterparts. The device shows also the high gain and characteristic temperature (~197 K) under CW operation from 10 to 100°C. The mode stability is analyzed by the calculated mode reflection spectrum, injection-current-dependent lasing spectrum, and near-field patterns.
Keywords :
distributed Bragg reflector lasers; laser modes; laser stability; waveguide lasers; edge-emitting Bragg reflection waveguide lasers; edge-emitting total internal reflection; injection-current-dependent lasing spectrum; mode reflection spectrum; mode stability; near-field patterns; optical confinement; quantum efficiency; self-heating characteristics; temperature 10 degC to 100 degC; threshold characteristics; Laser modes; Measurement by laser beam; Optical waveguides; Temperature measurement; Vertical cavity surface emitting lasers; Waveguide lasers; Anti-guided lasers; Bragg reflection waveguides; high-power lasers; semiconductor lasers; threshold;
Journal_Title :
Quantum Electronics, IEEE Journal of
DOI :
10.1109/JQE.2010.2055042
