Title :
Measurement of spatial modes of broad-area diode lasers with 1-GHz resolution grating spectrometer
Author :
Stelmakh, Nikolai ; Flowers, Max
Author_Institution :
Dept. of Electr. Eng., Texas Univ., Arlington, TX
Abstract :
A 1-GHz resolution double-pass grating spectroscopy of broad-area diode lasers is performed. Measurements of spatial and spectral distribution of emitting power are performed as a function of pumping current. Results are confronted with the mode structure of gain-guided waveguide. Nonlinear coupling of lateral modes has been observed and quantified
Keywords :
laser modes; laser variables measurement; semiconductor lasers; spectrometers; broad-area diode lasers; double-pass grating spectroscopy; lateral mode coupling; pumping current; spatial modes; Diode lasers; Distributed feedback devices; Gratings; Laser cavity resonators; Laser feedback; Laser modes; Lenses; Mirrors; Spatial resolution; Spectroscopy; Laser cavity resonators; laser diodes; semiconductor lasers; waveguides;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2006.879514
