Thermal lensing and small signal gain measurements in a pulsed blue diode pumped Ti:sapphire amplifier at room temperature
Year: 2024
Type: article
Abstract: Ultra short pulse Ti:sapphire lasers, crucial for most demanding applications, have traditionally been complex and costly due to their pump sources. GaN-based laser diodes offer new prospects for pumping, yet challenges persist in achieving sufficient Ti:sapphire output power and beam quality. We introduce what we believe to be a novel approach using pulsed blue laser diode pumping of a Ti:sapphire amplifier. Experimental setups with free-space output and fiber-delivered laser diodes are used to measure small signal gain (SSG) and thermal lensing. Results show the potential of fiber-delivered blue laser diodes, achieving an SSG >33% with reduced thermal load, paving the way for compact and low cost blue laser diode-pumped Ti:sapphire amplifiers at room temperature.
Source: Optics Express
DOI: 10.1364/oe.536823
Authors: Daniel Hug, Andreas Dax, Alexandre Trisorio, Romain Carreto, Thomas Südmeyer, Bojan Resan
Institutions: Paul Scherrer Institute, University of Neuchâtel
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,270
OpenAlex ID: W4402418476