Tunable optical filter ford wavelength division multiplexing using dynamic interband photorefractive gratings

被引：21

作者：

Dittrich, P ^{[1
]}

Montemezzani, G ^{[1
]}

Günter, P ^{[1
]}

机构：

[1] ETH Honggerberg, Swiss Fed Inst Technol, Inst Quantum Elect, Nonlinear Opt Lab, CH-8093 Zurich, Switzerland

来源：

OPTICS COMMUNICATIONS | 2002年 / 214卷 / 1-6期

关键词：

volume holographic gratings; photorefractive materials; wavelength division multiplexing;

D O I：

10.1016/S0030-4018(02)02143-0

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate a narrow-bandwidth tunable optical filter in the telecommunication wavelength region near 1550 nm using dynamic holography. A thick holographic reflection grating is produced in a pure potassium niobate crystal with interband photorefractive effects. The filter is tuned by changing the grating spacing by means of an acousto-optic deflector. High wavelength selectivity with a 3 dB channel bandwidth of 0.13 nm is achieved. Tuning times are in the order of a few hundred microseconds. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：363 / 370

页数：8