A hitless reconfigurable add-drop multiplexer for WDM networks utilizing planar waveguides, thermo-optic switches and UV-induced gratings

Author

Scotti, R.E. ; Madsen, C. ; Henry, C.H. ; Lenz, G. ; Li, Y.P. ; Presby, H. ; White, A.

Author_Institution

Bell Labs. Innovations, Lucent Technol., Murray Hill, NJ, USA

fYear

1998

fDate

22-27 Feb. 1998

Firstpage

142

Lastpage

143

Abstract

Summary form only given. We describe a reconfigurable add-drop multiplexer that can insert or remove a single channel per stage without disrupting service on the remaining channels. The device was fabricated in Ge-doped SiO/sub 2/ channel waveguides with a delta of 1.2 percent on silicon substrates. The device design consists of two null path Mach-Zehnder thermo-optic switches on either side of an inner Mach-Zehnder grating filter.

Keywords

diffraction gratings; optical communication equipment; optical fibre networks; optical planar waveguides; optical switches; optical waveguide filters; reconfigurable architectures; thermo-optical effects; wavelength division multiplexing; Ge-doped SiO/sub 2/ channel waveguides; UV-induced gratings; WDM networks; device design; hitless reconfigurable add-drop multiplexer; inner Mach-Zehnder grating filter; null path Mach-Zehnder thermo-optic switches; planar waveguides; reconfigurable add-drop multiplexer; thermo-optic switches; Add-drop multiplexers; Gratings; Optical fiber communication; Optical filters; Optical planar waveguides; Optical switches; Optical waveguides; Planar waveguides; Repeaters; WDM networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Optical Fiber Communication Conference and Exhibit, 1998. OFC '98., Technical Digest

Conference_Location

San Jose, CA, USA

Print_ISBN

1-55752-521-8

Type

conf

DOI

10.1109/OFC.1998.657279

Filename

657279