A high-speed widely tunable Solc-type flat-top filter based on the dual transverse Pockels effect

作者：Zheng, Guoliang^*; Ouyang, Zhengbiao; Xu, Shixiang

来源：Journal of Optics, 2010, 12(3): 035213.

DOI：10.1088/2040-8978/12/3/035213

• Pockels effect
• quasi-phase-matched
• flat-top
• tunable optical filter

A high-speed widely tunable Solc-type flat-top filter based on the dual transverse Pockels effect is presented. The filter employs single-domain LiNbO3 (LN) with two pairs of transverse electrodes, where the one along the y-axis is periodic and the other one along the z-axis is continual. The periodic electrode provides periodic electro-optic modulation along the light propagation direction, which results in a folded. Solc-type filter. The continual electrode giving a uniform electric field is in charge of tuning the transmitted central wavelength of the filter. Compared to a conventional PPLN. Solc-type filter, our setup has double electro-optic tuning efficiency and a much broader operating range of intensity of the control electric field. In a safe region of electric field intensity, the transmitted central wavelength can extend from 1488 to 1562 nm. Since the tuning is via the Pockels effect, it has very fast response time (tens of nanoseconds).

• 出版日期2010-3
• 单位深圳大学