A highly reliable 32-channel wavelength division demultiplexer (patent pending)

被引：2

作者：

Horwitz, JW ^{[1
]}

Deng, XG ^{[1
]}

Morgan, A ^{[1
]}

Qiao, J ^{[1
]}

Villavicencio, V ^{[1
]}

Zhao, F ^{[1
]}

Zou, JZ ^{[1
]}

Chen, RT ^{[1
]}

机构：

[1] Raidant Res Inc, Austin, TX 78758 USA

来源：

WDM AND PHOTONIC SWITCHING DEVICES FOR NETWORK APPLICATIONS | 2000年 / 3949卷

关键词：

wavelength division multiplexing; WDM; gratings; spectrographs; fiber optics;

D O I：

10.1117/12.382885

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 32-channel wavelength-division demultiplexer (WDDM) has been designed and tested. Intended for commercial use, the instrument is designed to be rugged, stable, and insensitive to temperature variations. Operating in the 1.54- to 1.57-mu m spectral range, the unit uses single-mode fiber input and multi-mode fiber output. The optics consists of a Littrow plane-grating spectrograph that uses the same lens for collimation and for focusing. In order to reduce the size of the device, the grating is used at a large diffraction angle. A coarse ruling is used in a high diffraction order, which results in a device that has a low polarization-dependent loss. The mean insertion loss for all channels was 3.1 dB, and the standard deviation of the insertion loss was 0.23 dB. The mean channel bandwidth was 0.26 dB.

引用

页码：82 / 89

页数：8