A piezoelectric deformable mirror for intra-cavity laser adaptive optics

Craig S. Long; Philip W. Loveday; Andrew Forbes

doi:10.1117/12.776178

19 March 2008 A piezoelectric deformable mirror for intra-cavity laser adaptive optics

Craig S. Long, Philip W. Loveday, Andrew Forbes

Proceedings Volume 6930, Industrial and Commercial Applications of Smart Structures Technologies 2008; 69300Y (2008) https://doi.org/10.1117/12.776178
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2008, San Diego, California, United States

Abstract

This paper describes the development of a deformable mirror to be used in conjunction with diffractive optical elements inside a laser cavity. A prototype piezoelectric unimorph adaptive mirror was developed to correct for time dependent phase aberrations to the laser beam, such as those caused by thermal expansion of materials. The unimorph consists of a piezoelectric disc bonded to the back surface of a copper reflective mirror. The rear electrode of the piezoelectric ceramic disc is divided into segments so that a number of different control voltages can be applied to deform the mirror in a desired displacement distribution. The mirror is required to be able to deform in the shape of each of the lower order Zernike polynomials, which describe aberrations in optical systems. A numerical model of the device was used to determine a suitable electrode configuration. Finally, the device was constructed and the deformed shapes measured using a laser vibrometer.

Citation Download Citation

Craig S. Long, Philip W. Loveday, and Andrew Forbes "A piezoelectric deformable mirror for intra-cavity laser adaptive optics", Proc. SPIE 6930, Industrial and Commercial Applications of Smart Structures Technologies 2008, 69300Y (19 March 2008); https://doi.org/10.1117/12.776178

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