Investigation of two-center recording with variable sensitizing light intensity in doubly-doped LiNbO3 crystal

Zhifang Chai; Ya'nan Zhi; Qiang Zhao; Liren Liu

doi:10.1117/12.892910

7 September 2011 Investigation of two-center recording with variable sensitizing light intensity in doubly-doped LiNbO₃ crystal

Zhifang Chai, Ya'nan Zhi, Qiang Zhao, Liren Liu

Author Affiliations +

Proceedings Volume 8120, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications V; 812014 (2011) https://doi.org/10.1117/12.892910
Event: SPIE Photonic Devices + Applications, 2011, San Diego, California, United States

Abstract

The effect of variable sensitizing intensity on photorefractive performance in two-center recording is investigated through jointly solving two-center material equations and the coupled-wave equations. Four kinds of schemes for varying sensitizing intensity are designed, the relationship between the sensitizing intensity and recording time is simply assumed to be linear, and at the same time the recording intensity is stable in recording process. The temporal evolution of the space charge field (SCF) is obtained in each scheme. The results show that SCF increase monotonously no more in the recording process. The increase of sensitizing intensity will reduce the peak value of SCF during recording process. However, the decay of sensitizing intensity can enhance the peak value of SCF. The slow decay of sensitizing intensity is also useful to the buildup of high SCF, but the recording time will be long. At last, the effect of the decay mode and the initial value of sensitizing intensity on recording process are discussed. Both of recording sensitivity and the peak value of SCF can be enhanced in decay scheme with the high initial sensitizing intensity. In a real application an appropriate sensitizing light scheme needs to be designed.

Citation Download Citation

Zhifang Chai, Ya'nan Zhi, Qiang Zhao, and Liren Liu "Investigation of two-center recording with variable sensitizing light intensity in doubly-doped LiNbO₃ crystal", Proc. SPIE 8120, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications V, 812014 (7 September 2011); https://doi.org/10.1117/12.892910

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