Title :
Wide-Stripe Distributed Bragg Grating Lasers With Very Narrow Spectral Linewidth
Author :
Dias, Neville L. ; Reddy, Uttam ; Garg, Akash ; Young, Jonathan D. ; Verma, Varun B. ; Coleman, James J.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Illinois at Urbana-Champaign, Urbana, IL, USA
fDate :
3/1/2011 12:00:00 AM
Abstract :
Gain-guided lasers with distributed Bragg reflector gratings that exhibit narrow emission linewidths of under 500 kHz are demonstrated. Partial coverage of a facet with a grating is found to be sufficient to ensure single-wavelength laser operation. Narrow linewidth operation in 40 and 150-μm wide lasers with partial gratings is demonstrated. The use of antireflection coatings to suppress spurious Fabry-Perot modes is also presented. Linewidths as low as 200 kHz that are insensitive to drive current are observed.
Keywords :
Bragg gratings; Fabry-Perot interferometers; antireflection coatings; distributed Bragg reflector lasers; semiconductor lasers; Fabry-Perot modes; antireflection coatings; distributed Bragg reflector gratings; frequency 500 kHz; gain-guided lasers; narrow spectral linewidth; single-wavelength laser operation; wavelength 150 mum; wavelength 40 mum; wide-stripe distributed Bragg grating lasers; Cavity resonators; Distributed Bragg reflectors; Gratings; Laser modes; Measurement by laser beam; Surface emitting lasers; Waveguide lasers; Distributed Bragg grating lasers; quantum-well lasers; semiconductor lasers;
Journal_Title :
Quantum Electronics, IEEE Journal of
DOI :
10.1109/JQE.2010.2081970
