Work

Exploring the elevated Nd:YVO 4 temperature for reaching the second threshold condition of the Cr 4+ :YAG passively Q-switched laser

Year: 2025

Type: article

Abstract: The temperature-dependent second threshold criteria for the Nd:YVO 4 /Cr 4+ :YAG passively Q-switched (PQS) laser is explored. The emission cross section of the Nd:YVO 4 crystal is found to decrease as temperature elevates, which is feasible to reach the PQS second threshold with a flexible cavity design. We derive theoretical analysis and experimentally verify it by demonstrating the cavity mode size ratio variation between those on the gain medium and the saturable absorber. With the successful demonstration of reaching the second threshold condition by increasing the Nd:YVO 4 temperature, an application of the intracavity stimulated Raman scattering is further explored to show the benefit of this method.

Source: Optics Express

DOI: 10.1364/oe.557527

Authors: Chun-Yu Cho, Che-Wei Li

Language: English

Topic: Solid State Laser Technologies

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,270

Funder: National Science and Technology Council

Award: Investigation to the Mid-Infrared Structured Light Generation in Optical Parametric Oscillator