Studies of (gaal)as Injection-Lasers Operating with an Optical Fiber Resonator
Journal
Journal of Applied Physics
Journal Volume
51
Journal Issue
6
Pages
3062-3071
Date Issued
1980
Author(s)
Abstract
The characteristics of an optical fiber external resonator in conjunction with (GaAl)As stripe geometry lasers are described. We have observed a 6–10% reduction in the threshold current and have obtained 150 ps pulses at gigahertz repetition rates. The fiber resonator has also been used to quench self-pulsations in a (GaAl)As injection laser. In order to explain many of our results we have used a model that uses the conventional semiconductor rate equations modified by the addition of saturable electron traps and the effects of the external cavity. Our results predict many of the self-locking effects observed in injection lasers operating in an external cavity. Furthermore, the degree of self-locking will be a strong function of the external cavity length and the density of saturable absorbers.
SDGs
Type
journal article