A tunable dispersion compensating MEMS all-pass filter

被引：60

作者：

Madsen, CK ^{[1
]}

Walker, JA ^{[1
]}

Ford, JE ^{[1
]}

Goossen, KW ^{[1
]}

Nielsen, TN ^{[1
]}

Lenz, G ^{[1
]}

机构：

[1] Bell Labs, Lucent Technol, Murray Hill, NJ 07974 USA

来源：

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

关键词：

D O I：

10.1109/68.849073

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：

A tunable dispersion compensating filter based on a multistage optical all-pass filter with a microelectromechanical (MEM) actuated variable reflector and a thermally toned cavity is described. A two-stage device was demonstrated with a tuning range of +/-100 ps/nm, 50-GHz passband and a group delay ripple less than +/-3 ps. The device has negligible polarization dependence and is suitable for single or multiple channel compensation. An off-axis, two-fiber package with an excess loss <2 dB/stage avoids the need for a circulator. By cascading four stages, a passband to channel spacing ratio of 0.8 is obtained that allows both 40 Gb/s nonreturn-to-zero (NRZ) and return-to-zero (RZ) signals to be compensated.

引用

页码：651 / 653

页数：3

共 7 条

[1]

EGGLETON B, 1999, P OPT FIB COMM C INT

[2] Dynamic spectral power equalization using micro-opto-mechanics [J].