Designs of Nanostructured Materials Made by Glancing Angle Deposition for Improved Spectral Brightness of Solid-State Lasers
- Resource Type
- Conference
- Authors
- Bisson, Jean-Francois; Gallant, Gabriel; Amouzou, Koffi; Bulmer, Kris; Bader, Georges
- Source
- 2018 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR) Lasers and Electro-Optics Pacific Rim (CLEO-PR), 2018 Conference on. :1-2 Jul, 2018
- Subject
- Photonics and Electrooptics
Mirrors
Laser modes
Optical resonators
Semiconductor lasers
Optical films
Optical polarization
Optical reflection
- Language
We present the design and experimental characterization of nanostructured laser mirrors aimed at suppressing spatial hole burning (SHB) of a standing wave resonator. The dielectric Bragg mirrors were made by GLancing Angle Physical Vapor Deposition. Two designs are presented. First, helically-nanostructured materials that produce circular Bragg resonance at the wavelength matching the helical period. Second, thick anisotropic coatings deposited on ordinary mirrors, which act as half-wave plates to produce twisted mode laser operation. Both designs enable single longitudinal mode laser operation by suppressing SHB.