Arrayed-waveguide grating with branched outputs for simultaneous multichannel monitoring purposes

Author

Lee, Jae-Hoon ; Kim, Tae-Yong ; Kim, Tae-Hoo ; Lee, Jae-Seung ; Park, Chang-Soo ; Seo, Wan-Seok

Author_Institution

Dept. of Electron. Eng., Kwangwoon Univ., Seoul, South Korea

Volume

13

Issue

11

fYear

2001

Firstpage

1185

Lastpage

1187

Abstract

We propose an arrayed-waveguide grating (AWG) that has branched output waveguides for simultaneous multichannel monitoring purposes. The transmittances of two adjacent branched output waveguides are slightly different from each other. Thus, we can obtain crossover wavelengths, where the transmittances of adjacent output waveguides are the same with much smaller insertion losses than those of conventional AWGs. As a result, the proposed device can accurately monitor wavelength-division-multiplexed channel wavelengths in the presence of the amplified-spontaneous-emission noise.

Keywords

diffraction gratings; integrated optics; monitoring; optical arrays; optical communication equipment; optical waveguides; wavelength division multiplexing; accurately monitor; adjacent branched output waveguides; adjacent output waveguides; amplified-spontaneous-emission noise; arrayed-waveguide grating; branched outputs; crossover wavelengths; simultaneous multichannel monitoring purposes; smaller insertion losses; transmittances; wavelength-division-multiplexed channel wavelengths; Arrayed waveguide gratings; Insertion loss; Monitoring; Optical communication equipment; Optical losses; Optical noise; Optical waveguides; Propagation losses; Stimulated emission; Wavelength division multiplexing;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.959358

Filename

959358