Gain enhancement by moving gratings in a photorefractive polymer

被引：10

作者：

Grunnet-Jepsen, A ^{[1
]}

Thompson, CL ^{[1
]}

Moerner, WE ^{[1
]}

机构：

[1] Univ Calif San Diego, La Jolla, CA 92093 USA

来源：

OPTICS COMMUNICATIONS | 1998年 / 145卷 / 1-6期

关键词：

photorefractive polymer; two-wave mixing; moving gratings; gain enhancement;

D O I：

10.1016/S0030-4018(97)00432-X

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The use of moving gratings allows dramatic enhancement of the two-beam coupling gain in a photorefractive polymer. The advantage of using multi-layer structures to increase the effective interaction length is also demonstrated and a small signal optical amplification as large as 500 is achieved using a three-layer sample, the highest reported to date in a photorefractive polymer. From an investigation of the time dependence and detuning frequency dependence, we determine that hole conduction is dominant and that the mobility life-time product reaches mu tau = 3 x 10(-10) cm(2)/V at an applied electric field E-0 = 71 V/mu m. (C) 1998 Elsevier Science B.V.

引用

页码：145 / 149

页数：5

共 23 条

[1] CHARGE TRANSPORT IN DISORDERED ORGANIC PHOTOCONDUCTORS - A MONTE-CARLO SIMULATION STUDY [J].