Enhanced sensitivity in WDM optical monitoring using a MARS optical chopper

Author

Giles, R. ; Stulz, L. ; Walker, J. ; Ruel, R.

Author_Institution

Lucent Technol., Holmdel, NJ, USA

Volume

2

fYear

1999

fDate

21-26 Feb. 1999

Firstpage

253

Abstract

A MARS optical chopper is implemented with lock-in detection to enhance the sensitivity of a 1550-nm band wavelength-division multiplexing (WDM) optical monitor and improve its immunity of 1/f noise and dc drift. The high chopping rate, 1.02 MHz, it ideally suited for rapid-scanning optical monitors, allowing <100 /spl mu/s filter time constants for high-rate data acquisition.

Keywords

micro-optics; monitoring; optical communication equipment; optical signal detection; optical switches; wavelength division multiplexing; 1.02 MHz; 1/f noise; 1550 nm; DC drift; MARS optical chopper; WDM optical monitor; data acquisition; filter time constant; lock-in signal detection; mechanical antireflective switch; sensitivity; wavelength division multiplexing; Choppers; Mars; Monitoring; Optical attenuators; Optical filters; Optical modulation; Optical noise; Optical receivers; Optical sensors; Wavelength division multiplexing;

fLanguage

English

Publisher

ieee

Conference_Titel

Optical Fiber Communication Conference, 1999, and the International Conference on Integrated Optics and Optical Fiber Communication. OFC/IOOC '99. Technical Digest

Conference_Location

San Diego, CA, USA

Print_ISBN

1-55752-582-X

Type

conf

DOI

10.1109/OFC.1999.766400

Filename

766400