Mode-selective toroidal mirrors for unstable resonator planar waveguide and thin slab solid-state lasers

In this paper, two new fabrication methods are developed for highly curved toroidal laser resonator mirrors based on laser micromachining of cylindrical substrates that already have the large lateral curvature R T provided by conventional polishing. These mirrors are produced by a two-step CO 2 lase...

Full description

Saved in:
Bibliographic Details
Main Authors: Wlodarczyk, K.L., Thomson, I.J., Baker, H.J., Hall, D.R.
Format: Conference Proceeding
Language:English
Subjects:
Laser beam cutting
Laser modes
Micromachining
Mirrors
Optical device fabrication
Planar waveguides
Power lasers
Slabs
Solid lasers
Waveguide lasers
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this paper, two new fabrication methods are developed for highly curved toroidal laser resonator mirrors based on laser micromachining of cylindrical substrates that already have the large lateral curvature R T provided by conventional polishing. These mirrors are produced by a two-step CO 2 laser machining process with high resolution ablative laser cutting and then laser polishing, or by vaporization of silica in the CO 2 laser smoothing process at higher than usual power. The produced mirrors are with R T = 32 mm and 15 mm radius of curvature and 14 mm lateral length for use with the 200 mum core height Nd:YAG and a 150 mum core Yb:YAG planar waveguide laser respectively.
DOI:10.1109/CLEOE-EQEC.2009.5192114