A polarization-independent 1 × 16 guided-wave optical switch integrated on lithium niobate

Author

Watson, James E. ; Milbrodt, Michele A. ; Rice, Trudie C.

Author_Institution

AT&T Bell Laboratories, Allentown, PA, USA

Volume

4

Issue

11

fYear

1986

fDate

11/1/1986 12:00:00 AM

Firstpage

1717

Lastpage

1721

Abstract

We report the fabrication and testing of several models of a complex integrated Ti : LiNbO3switch array, a one-input-to-sixteen-output switch that is polarization independent for use with standard single-mode fibers. The switch array has 15 directional couplers arranged in a binary tree with four ranks. The device is fitted with connectorized single-mode fiber pigtails and housed in a package that permits convenient transport and use. The best measured losses (fiber-waveguide-fiber) are 3.0 dB for the TE polarization and 3.6 dB for the TM. Permanent attachment of the pigtails adds 0.65-dB loss. Crosstalk suppression averages 10 dB below the transmitted signal for the brightest unwanted path.

Keywords

Optical directional couplers; Optical fibers; Optical polarization; Optical strip waveguide components; Optical switches; Binary trees; Directional couplers; Lithium niobate; Optical device fabrication; Optical fiber couplers; Optical fiber devices; Optical fiber polarization; Optical fiber testing; Optical polarization; Optical switches;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.1986.1074663

Filename

1074663