Multiple-channel OSNR monitoring with a single detector

Author

Lin, Xiao ; Yan, Li

Author_Institution

Dept. of Comput. Sci. & Electr. Eng., Univ. of Maryland, Baltimore, MD, USA

Volume

16

Issue

12

fYear

2004

Firstpage

2637

Lastpage

2639

Abstract

We report a multichannel optical signal-to-noise ratio (OSNR) monitoring method using the integrated planar lightwave circuit and fast Fourier transform techniques with a single detector. The OSNR of four-channel wavelength-division-multiplexing signals can be monitored for a dynamic range of 20 dB with an accuracy of ±1 dB. This method can further allow one to suppress the optical crosstalk in accordance with the requirements of OSNR accuracy and dynamic range.

Keywords

arrayed waveguide gratings; fast Fourier transforms; integrated optics; monitoring; optical crosstalk; optical fibre communication; optical noise; photodetectors; telecommunication channels; wavelength division multiplexing; OSNR accuracy; dynamic range; fast Fourier transform; integrated planar light-wave circuit; multichannel OSNR monitoring; optical crosstalk suppression; optical signal-to-noise ratio; single detector; wavelength division multiplexing signals; Detectors; Monitoring; Optical crosstalk; Optical films; Optical filters; Optical modulation; Optical noise; Phase modulation; Signal to noise ratio; Wavelength division multiplexing; Arrayed-waveguide grating (AWG); monitoring; optical signal-to-noise ratio (OSNR); wavelength-division multiplexing (WDM);

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2004.836755

Filename

1359936