Presentation
5 March 2021 Fast wavelength switchable external cavity diode laser using digital micromirror device
Author Affiliations +
Abstract
We developed a fast wavelength switchable external cavity diode laser (ECDL) using a DMD as a seed laser for an injection-seeded terahertz (THz) wave parametric generator (is-TPG). Generally, the wavelength of an ECDL is selected by the angle of the mirror or grating; however, in this case, a DMD is used as the wavelength selector. A power output of 300 mW and a tunable range of 26 nm were obtained. Furthermore, high-rate modulation at 6.55kHz was realized. This laser makes it possible to switch the THz wavelengths of is-TPG rapidly to match the absorption spectrum of a reagent.
Conference Presentation
© (2021) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Sota Mine, Kodo Kawase, and Kosuke Murate "Fast wavelength switchable external cavity diode laser using digital micromirror device", Proc. SPIE 11667, Components and Packaging for Laser Systems VII, 1166709 (5 March 2021); https://doi.org/10.1117/12.2577932
Advertisement
Advertisement
KEYWORDS
Digital micromirror devices

Semiconductor lasers

Diffraction

Terahertz radiation

Laser induced damage

Mirrors

Resonators

Back to Top