Tunable Solc-type filter in periodically poled LiNbO(3) by UV-light illumination.
We demonstrate a tunable Solc-type filter in periodically poled lithium niobate by UV-light illumination in this paper. Due to the photovoltaic effect, a Solc-type filter in PPLN can be formed without applying an external electric field. Through this mechanism, a tunable wavelength filter by UV-light illumination is realized. A wavelength shift as large as 15nm is observed under 778mW/cm(2) uniform UV illumination. The dependence of wavelength shift on illumination intensity shows a nearly linear relationship and the tuning rate is about 52 mW/cm(2) per nm at 20 degrees C.
Shi
Jianhong
J
Wang
Jinghe
J
Chen
Lijun
L
Chen
Xianfeng
X
Xia
Yuxing
Y