Title

Fiber-coupled in-line heterodyne optical interfefometer for minimally invasive sensing

Authors

Authors

M. A. Arain;N. A. Riza

Comments

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Abbreviated Journal Title

J. Lightwave Technol.

Keywords

acoustooptic devices; heterodyne optical inter-ferometers; optical; sensors; scanning interferometers; RING INTERFEROMETER; SENSOR; Engineering, Electrical & Electronic; Optics; Telecommunications

Abstract

In this paper, the first fiber-coupled no-moving-parts scanning heterodyne interferometer design using a single acoustooptic device, (AOD) is reported. The design, features a high-stability inline reflective architecture with free-space-scanned minimally invasive sensing via a multizone reflective sensor chip. The common path fiber interconnection allows robust remoting of the compact sensing front end. A proof-of-concept sensing experiment measuring voltage-dependent birefringence is successfully conducted using a voltage-controlled nematic liquid crystal (NLC) sensor chip. The system features a 4.69-dB optical loss, a 200-MHz output frequency, and a 1550-nm eye-safe operation wavelength. Applications for the system include any fiber-remoted sensing using the proposed free-space, minimally invasive interrogating optical beams.

Journal Title

Journal of Lightwave Technology

Volume

23

Issue/Number

8

Publication Date

1-1-2005

Document Type

Article

Language

English

First Page

2449

Last Page

2454

WOS Identifier

WOS:000231427100012

ISSN

0733-8724

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