Continuous wave operation of a surface-emitting AlGaAs/GaAs multiquantum well distributed Bragg reflector laser

The first cw operation of an AlGaAs/GaAs distributed Bragg reflector laser was achieved at room temperature with a threshold current as low as 38 mA. Surface emission exceeding 4 mW was obtained with an external differential quantum efficiency of 9% and a beam divergence of 0.17°×10°. A two‐dimensional laser array with 3×4 gratings was also fabricated and an output power exceeding 500 mW was obtained under pulsed condition.

[1]  Shyh Wang,et al.  Principles of distributed feedback and distributed Bragg-reflector lasers , 1974 .

[2]  R. Logan,et al.  Integrated electro‐optic intracavity frequency modulation of double‐heterostructure injection laser , 1975 .

[3]  K. Kyuma,et al.  GaAs/AlGaAs distributed feedback transverse junction stripe laser grown by molecular beam epitaxy , 1987 .

[4]  A. Yariv,et al.  Highly collimated broadside emission from room‐temperature GaAs distributed Bragg reflector lasers , 1977 .

[5]  W. Tsang,et al.  GaAs‐Ga1‐xAlxAs double‐heterostructure injection lasers with distributed Bragg reflectors , 1976 .

[6]  R. A. Logan,et al.  GaAs‐AlxGa1‐xAs injection lasers with distributed Bragg reflectors , 1975 .

[7]  D. Scifres,et al.  Analysis of grating-coupled radiation in GaAs:GaAlAs lasers and waveguides - II: Blazing effects , 1976, IEEE Journal of Quantum Electronics.

[8]  J. M. Hammer,et al.  Surface‐emitting second order distributed Bragg reflector laser with dynamic wavelength stabilization and far‐field angle of 0.25° , 1986 .

[9]  K. Kyuma,et al.  Edge‐ and surface‐emitting distributed Bragg reflector laser with multiquantum well active/passive waveguides , 1987 .

[10]  J. M. Hammer,et al.  Phase‐locked operation of coupled pairs of grating‐surface‐emitting diode lasers , 1987 .

[11]  I. Suemune,et al.  Two-Dimensionally Collimated Output Beam from GaAlAs Diode Lasers with Two-Dimensional Distributed Bragg Reflectors , 1983 .