Stripe-array diode-laser in an off-axis external cavity: Theory and experiment
Author(s)
Jechow, Andreas
Lichtner, Mark
Menzel, Ralf
Radziunas, Mindaugas
Skoczowsky, Danilo
G. Vladimirov, Andrei
Griffith University Author(s)
Year published
2009
Metadata
Show full item recordAbstract
Stripe-array diode lasers naturally operate in an anti-phase supermode. This produces a sharp double lobe far field at angles ᡠdepending on the period of the array. In this paper a 40 emitter gain guided stripe-array laterally coupled by off-axis filtered feedback is investigated experimentally and numerically. We predict theoretically and confirm experimentally that at doubled feedback angle 2a a stable higher order supermode exists with twice the number of emitters per array period. The theoretical model is based on time domain traveling wave equations for optical fields coupled to the carrier density equation taking into ...
View more >Stripe-array diode lasers naturally operate in an anti-phase supermode. This produces a sharp double lobe far field at angles ᡠdepending on the period of the array. In this paper a 40 emitter gain guided stripe-array laterally coupled by off-axis filtered feedback is investigated experimentally and numerically. We predict theoretically and confirm experimentally that at doubled feedback angle 2a a stable higher order supermode exists with twice the number of emitters per array period. The theoretical model is based on time domain traveling wave equations for optical fields coupled to the carrier density equation taking into account diffusion of carriers. Feedback from the external reflector is modeled using Fresnel integration.
View less >
View more >Stripe-array diode lasers naturally operate in an anti-phase supermode. This produces a sharp double lobe far field at angles ᡠdepending on the period of the array. In this paper a 40 emitter gain guided stripe-array laterally coupled by off-axis filtered feedback is investigated experimentally and numerically. We predict theoretically and confirm experimentally that at doubled feedback angle 2a a stable higher order supermode exists with twice the number of emitters per array period. The theoretical model is based on time domain traveling wave equations for optical fields coupled to the carrier density equation taking into account diffusion of carriers. Feedback from the external reflector is modeled using Fresnel integration.
View less >
Journal Title
Optics Express
Volume
17
Issue
22
Subject
Lasers and Quantum Electronics
Optical Physics
Electrical and Electronic Engineering
Communications Technologies