High Brightness, Sub-Nanosecond, And Compact Passively Q-Switched Laser With Intracavity Volume Bragg Gratings

Keywords

lasers; mode selection; passively Q-switched; picosecond; solid state; Volume Bragg gratings

Abstract

A high brightness, high energy passively Q-switched (PQS) Nd:YAG laser is presented using volume transmitting Bragg gratings (TBGs) as angular filters. A planar cavity with a length of 1 cm, an 800 μm diameter pump beam, a 20% transmission Cr:YAG saturable absorber, and a 40% output coupling resulted in output pulse energies greater than 1 mJ and durations near 600 ps. In order to increase brightness without altering cavity length, a TBG with narrow angular selectivity placed in the cavity to suppress the higher order transverse modes allowing for near diffraction limited output.

Publication Date

1-1-2018

Publication Title

Proceedings of SPIE - The International Society for Optical Engineering

Volume

10637

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1117/12.2307204

Socpus ID

85050250780 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85050250780

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