Mach-Zehnder interferometric measurement of laser heating/cooling in Yb3+: YAG

Carlton Farley III; B. Rami Reddi

doi:10.1117/12.873944

8 February 2011 Mach-Zehnder interferometric measurement of laser heating/cooling in Yb³⁺: YAG

Carlton Farley III, B. Rami Reddi

Proceedings Volume 7951, Laser Refrigeration of Solids IV; 79510I (2011) https://doi.org/10.1117/12.873944
Event: SPIE OPTO, 2011, San Francisco, California, United States

Abstract

A 915 nm T:Sapphire laser was used to excite luminescence from Yb³⁺ doped YAG crystal. The excited ions undergo nonradiative relaxation followed by strong emission at 1030 nm. The heating produced by the nonradiative relaxation increases the sample temperature. A Mach-Zehnder interferometer was setup with 514.5 nm Ar⁺ laser beam. Laser heating causes the interferometer fringes to move. A mathematical formula was developed to estimate the change in sample temperature from the fringe count. When 300mW Ti:Sapphire laser beam was focused through the YAG:Yb³⁺crystal its temperature increased by 6.9°C. This technique works equally well to measure the solid sample temperature changes in laser cooling studies.

Citation Download Citation

Carlton Farley III and B. Rami Reddi "Mach-Zehnder interferometric measurement of laser heating/cooling in Yb³⁺: YAG", Proc. SPIE 7951, Laser Refrigeration of Solids IV, 79510I (8 February 2011); https://doi.org/10.1117/12.873944

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