Wavelength tunable two-pad ridge waveguide distributedBragg reflectorInGaAs-GaAs quantum well lasers
- 4 August 1994
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 30 (16) , 1313-1314
- https://doi.org/10.1049/el:19940916
Abstract
Carrier injection in the grating section is used to tune the emission wavelength of a single growth step, single frequency, ridge waveguide InGaAs/GaAs quantum well distributed Bragg reflector laser with two top contacts. Single longitudinal mode emission with over 30 dB of sidemode suppression is observed throughout a tuning range of 6 nm with 60 mA of injection current in the grating section. The tuning mechanism for these devices is dominated by current injection heating rather than carrier depression of the refractive index.Keywords
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