Quality evaluation of quasi-phase-matched devices by far-field diffraction pattern analysis

Krishnamoorthy Pandiyan; Yeon Sook Kang; Hwan Hong Lim; Byeong Joo Kim; Myoungsik Cha

doi:10.1117/12.808464

23 February 2009 Quality evaluation of quasi-phase-matched devices by far-field diffraction pattern analysis

Krishnamoorthy Pandiyan, Yeon Sook Kang, Hwan Hong Lim, Byeong Joo Kim, Myoungsik Cha

Proceedings Volume 7197, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VIII; 71970R (2009) https://doi.org/10.1117/12.808464
Event: SPIE LASE: Lasers and Applications in Science and Engineering, 2009, San Jose, California, United States

Abstract

Periodically poled ferroelectric crystals form highly efficient quasi-phase matched optical frequency conversion devices. For optimal performance of such devices, accurate period and duty-cycle are required throughout the poled region. For the quality evaluation we demonstrate a simple and a powerful technique using far-field diffraction measurement. Periodically poled lithium niobates were fabricated and etched out to reveal a surface-relief grating. The far-field diffraction pattern was analyzed to obtain statistical information for the duty-cycle. We explored the equivalence between the linear diffraction experiment and the conventional second-harmonic generation method for poling quality evaluation, through the Fourier-transform of the spatial modulation of domains.

Citation Download Citation

Krishnamoorthy Pandiyan, Yeon Sook Kang, Hwan Hong Lim, Byeong Joo Kim, and Myoungsik Cha "Quality evaluation of quasi-phase-matched devices by far-field diffraction pattern analysis", Proc. SPIE 7197, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VIII, 71970R (23 February 2009); https://doi.org/10.1117/12.808464

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