By Topic

Application of second-harmonic generation combined with the electro-optic effect for electrical field measurements

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

6 Author(s)
Vasa, N.J. ; Interdisciplinary Graduate Sch. of Eng. Sci., Kyushu Univ., Fukuoka, Japan ; Yoshioka, M. ; Yokoyama, S. ; Maeda, M.
more authors

Summary form only given. A novel approach of measuring the electric field is proposed by combining second-harmonic generation (SHG) with the electro-optic effect. In SHG with an electro-optic crystal, when the interacting pump and the SHG wave satisfies the phase matching condition, the SHG output can be obtained. However, when an external electric field is applied, the refractive indices alter due to the electro-optic effect and the phase matched condition changes resulting in the output variation which can be used for the measurement of the electric field. The advantages compared with the Pockels sensors are: (1) direct measurement of the SHG output results in higher signal to noise ratio; (2) phase matching conditions can easily be offset to monitor higher electric fields; (3) compact fiber coupled assemblies without waveplates, analyzers are possible. In the present work, a diode laser is used with a nonlinear, electro-optic crystal and the feasibility of SHG for the electric field measurement is studied. The experimental measurements combined with theoretical estimates show that even though the temperature control is a critical requirement, SHG with electro-optic crystals, such as either LiNbO/sub 3/ or KTP, can be effectively used for electrical field measurements.

Published in:

Lasers and Electro-Optics, 2002. CLEO '02. Technical Digest. Summaries of Papers Presented at the

Date of Conference:

24-24 May 2002