Theory of loss and gain trimming of resonator-type filters

被引：8

作者：

Little, BE ^{[1
]}

Chu, ST

机构：

[1] Univ Maryland, Lab Phys Sci, College Pk, MD 20740 USA

[2] MIT, Elect Res Lab, Cambridge, MA 02139 USA

[3] Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2000年 / 12卷 / 06期

基金：

美国国家科学基金会;

关键词：

microcavity; optical switching; resonators; wavelength filter;

D O I：

10.1109/68.849068

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The characteristic response of resonator-type filters is determined by the mutual resonator-to-resonator coupling coefficients, which are not readily trimmed once a device is fabricated. We show that loss and/or gain is a mechanism which can mimic the role of the coupling coefficients, and which can therefore be used Tor post-fabrication tuning or trimming. By using loss-only trimming, the throughput crosstalk performance can be improved by several orders of magnitude while incurring only small signal attenuation.

引用

页码：636 / 638

页数：3

共 8 条

[1] THEORY OF CASCADED QUARTER WAVE SHIFTED DISTRIBUTED FEEDBACK RESONATORS [J].