Title :
Suppression of multiple pulse formation in external-cavity mode-locked semiconductor lasers using intrawaveguide saturable absorbers
Author :
Derickson, D.J. ; Helkey, R.J. ; Mar, A. ; Karin, J.R. ; Bowers, J.E. ; Thornton, R.L.
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., Santa Barbara, CA, USA
fDate :
4/1/1992 12:00:00 AM
Abstract :
Imperfect antireflection coatings in external-cavity mode-locked semiconductor lasers can cause multiple output pulse generation. The incorporation of an intrawaveguide saturable absorber segment into the laser suppresses this problem. Single pulse outputs of less than 2.8 ps and 0.7 pJ of energy are obtained using such devices with both quantum well and bulk active regions.<>
Keywords :
antireflection coatings; laser cavity resonators; laser mode locking; optical saturable absorption; optical waveguides; semiconductor junction lasers; 0.7 pJ; 2.8 ps; antireflection coatings; bulk active regions; diode lasers; external-cavity mode-locked semiconductor lasers; intrawaveguide saturable absorbers; multiple output pulse generation; multiple pulse formation; quantum well; single pulse outputs; Absorption; Coatings; Diode lasers; Laser mode locking; Laser theory; Optical pulses; Pulse amplifiers; Pulse generation; Quantum well lasers; Semiconductor lasers;
Journal_Title :
Photonics Technology Letters, IEEE
