Title :
A new DFB-laser diode with reduced spatial hole burning
Author :
Morthier, G. ; David, K. ; Vankwikelberge, P. ; Baets, R.
Author_Institution :
Lab. of Electromagn. & Acoust., Gent Univ., Belgium
fDate :
6/1/1990 12:00:00 AM
Abstract :
An index coupled antireflection-coated distributed-feedback (DFB)-laser diode which theoretically exhibits a longitudinally uniform power density is proposed. The structure contains an amplitude modulated grating and is far more efficient in reducing spatial hole burning than multiphase-shift lasers. The laser can be expected to be single mode up to high power levels. It can be of interest when long lasers with a reduced linewidth and a flat FM response are to be used or as a laser with small modulation distortion in analog communication.<>
Keywords :
amplitude modulation; diffraction gratings; distributed feedback lasers; optical hole burning; optical modulation; semiconductor junction lasers; DFB-laser diode; amplitude modulated grating; analog communication; flat FM response; high power levels; index coupled antireflection-coated; long lasers; longitudinally uniform power density; multiphase-shift lasers; reduced linewidth; reduced spatial hole burning; single mode; small modulation distortion; Amplitude modulation; Diode lasers; Fabrication; Gratings; Laser modes; Laser noise; Laser theory; Optical coupling; Power lasers; Production;
Journal_Title :
Photonics Technology Letters, IEEE
