Theory of subpicosecond pulse generation by active modelocking of a semiconductor laser amplifier in an external cavity: limits for the pulsewidth

Author

Schell, Martin ; Weber, Andreas G. ; Bottcher, E.H. ; Scholl, Eckehard ; Bimberg, Dieter

Author_Institution

Tech. Univ. Berlin, Germany

Volume

27

Issue

3

fYear

1991

fDate

3/1/1991 12:00:00 AM

Firstpage

402

Lastpage

409

Abstract

Active mode-locking of a semiconductor laser amplifier (SCLA) in an external cavity is theoretically modeled using a cosh^-2 description for the optical pulses. Analytical solutions are derived. The model includes finite gainwidth, which is shown to be of the greatest importance for a correct description, and gain saturation. A lower limit of the optical pulsewidth is derived in terms of the gainwidth, the injection current, the external loss, and other parameters

Keywords

high-speed optical techniques; laser mode locking; semiconductor junction lasers; active modelocking; external cavity; external loss; finite gainwidth; gain saturation; injection current; optical pulses; optical pulsewidth; semiconductor laser amplifier; subpicosecond pulse generation; Laser mode locking; Laser theory; Optical pulse generation; Optical pulses; Optical saturation; Pulse amplifiers; Pulse generation; Semiconductor lasers; Semiconductor optical amplifiers; Space vector pulse width modulation;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.81338

Filename

81338