Technological Nd lasers with adaptive cavity and their application

Anatoly N. Kravets; Igor I. Trifonov; Andrey V. Gavrilov; Igor V. Shilov; Andrey V. Ruljov

doi:10.1117/12.308121

13 May 1998 Technological Nd lasers with adaptive cavity and their application

Anatoly N. Kravets, Igor I. Trifonov, Andrey V. Gavrilov, Igor V. Shilov, Andrey V. Ruljov

Proceedings Volume 3267, Laser Resonators; (1998) https://doi.org/10.1117/12.308121
Event: Optoelectronics and High-Power Lasers and Applications, 1998, San Jose, CA, United States

Abstract

Are known powerful technological YAG:Nd-lasers with passive Q-switching on a LiF:F₂^- crystal. At use of the unstable resonator with a convex mirror was received single- mode pulse-periodic radiation with high spatial brightness, small divergence and large coherent length. The phase conjugation of technological Nd-lasers on the dynamic hologram in a LiF:F₂^- crystal has allowed to increase efficiency of laser processing. In the present work the modes of generation and technological opportunities of YAG:Nd-lasers and on Nd-glass c by adaptive resonators on a basis of Sagnac interferometer (SI) are investigated at pulse-periodic pumping. Phase conjugation and passive Q- switching were carried out simultaneously with the help of a LiF:F₂^- crystal, placed in SI. Crystal transparency linearly changes on length, therefore by moving of a crystal normally to an optical axis it is possible over a wide range to operate power and temporary parameters of laser radiation. High power and spatial parameters of radiation, as the opportunity of their control, directly during processing by crystal moving, have allowed effectively to carry out the calibrated drilling in various materials by a diameter 50 - 400 micrometers and depth up to 20 mm. For increase of efficiency of fragile materials destruction the combination of spatial and temporary modulation of laser radiation was used. The formation in a volume or on the material's surface of alternating areas with high gradients of thermally induced pressure has allowed to decrease the destruction's power threshold in some times. Besides by optimization of spatial parameters it is possible to improve quality of laser processing by decreasing thermally induced pressure and deformations.

Citation Download Citation

Anatoly N. Kravets, Igor I. Trifonov, Andrey V. Gavrilov, Igor V. Shilov, and Andrey V. Ruljov "Technological Nd lasers with adaptive cavity and their application", Proc. SPIE 3267, Laser Resonators, (13 May 1998); https://doi.org/10.1117/12.308121

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
10 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Crystals

Laser crystals

Mirrors

Transparency

Laser processing

Laser systems engineering

Glasses

Show All Keywords

Keywords/Phrases

Search In:

Publication Years