PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
We propose a compact solution to spatially regularize and temporally stabilize edge emitting (broad area) semiconductor lasers. The scheme relays on the local asymmetries generated by a non-Hermitian potential with a central symmetry axis to manage the flow of light, which stabilizes the radiation while enhancing and localizing the generated laser beam. We introduce a harmonic modulation on the pump with a central symmetry axis, and a complex refractive index modulation that generates a local PT-symmetry within the laser. The local PT-symmetry creates an inward mode coupling that concentrates the light generated in the active layer on axis. We perform a comprehensive analysis of all the modulation parameters and find regimes of simultaneous temporal stability and light concentration. The present approach produces two in one: light localization into a narrow beam emission and the control over the spatiotemporal dynamics, improving the laser performance.
J. Medina Pardell,R. Herrero ,M. Botey , andK. Staliunas
"Spatiotemporal stabilization of PT-symmetric BAS lasers", Proc. SPIE 11356, Semiconductor Lasers and Laser Dynamics IX, 1135610 (1 April 2020); https://doi.org/10.1117/12.2556807
ACCESS THE FULL ARTICLE
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
The alert did not successfully save. Please try again later.
J. Medina Pardell, R. Herrero , M. Botey , K. Staliunas, "Spatiotemporal stabilization of PT-symmetric BAS lasers," Proc. SPIE 11356, Semiconductor Lasers and Laser Dynamics IX, 1135610 (1 April 2020); https://doi.org/10.1117/12.2556807