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Proceedings Paper

Solid-state laser source of narrowband ultraviolet B light for skin disease care with advanced performance
Author(s): Aleksandr A. Tarasov; Hong Chu; Kristian Buchwald
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Paper Abstract

Two years ago we reported about the development of solid state laser source for medical skin treatment with wavelength 310.6 nm and average power 200 mW. Here we describe the results of investigation of the advanced version of the laser, which is a more compact device with increased output power and flat top beam profile. Ti: Sapphire laser, the main module of our source, was modified and optimized such, that UV average power of the device was increased 1.7 times. Fiber optic homogenizer was replaced by articulated arm with diffraction diffuser, providing round spot with flat profile at the skin. We investigated and compare characteristics of Ti: Sapphire lasers with volume Bragg grating and with fused silica transmission grating, which was used first time for Ti: Sapphire laser spectral selection and tuning. Promising performance of last gratings is demonstrated.

Paper Details

Date Published: 20 February 2015
PDF: 8 pages
Proc. SPIE 9346, Components and Packaging for Laser Systems, 93460V (20 February 2015); doi: 10.1117/12.2074616
Show Author Affiliations
Aleksandr A. Tarasov, Laseroptek, Ltd. (Korea, Republic of)
Hong Chu, Laseroptek, Ltd. (Korea, Republic of)
Kristian Buchwald, Ibsen Photonics (Denmark)

Published in SPIE Proceedings Vol. 9346:
Components and Packaging for Laser Systems
Alexei L. Glebov; Paul O. Leisher, Editor(s)

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