Picosecond pulse generation in detuned distributed feedback lasers

4 February 1988

journal article
Published by Institution of Engineering and Technology (IET) in Electronics Letters

Vol. 24 (3) , 170-171
https://doi.org/10.1049/el:19880113

Abstract

The effect of detuning the Bragg wavelength for picosecond pulse generation in GalnAsP distributed feedback (DFB) lasers is investigated using the gain switching method. We have observed that the pulse width is reduced in a detuned DFB laser, in which the differential gain is enhanced through detuning the Bragg wavelength λ_B, from the gain peak to a shorter wavelength by 100 Å. This result demonstrates the significance of the differential gain for short pulse generation.

Keywords

DISTRIBUTED FEEDBACK LASERS
GAINASP
DETUNING
BRAGG WAVELENGTH
III-V SEMICONDUCTORS
SEMICONDUCTOR LASERS
PULSE WIDTH
OPTICAL COMMUNICATION EQUIPMENT
DIFFERENTIAL GAIN
PICOSECOND PULSE GENERATION
DFB
GAIN SWITCHING METHOD

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