Title

Microwave band demonstration of a reflective geometry fiber and free-space binary photonic delay line

Keywords

Liquid crystal; Optical fiber; Phased-array antennas; Photonic delay lines

Abstract

For the first time, a modulated 2-b, one-channel binary switched, photonic time delay system (PTDS) is demonstrated that is based on a compact reflective optical delay path geometry that consists of one free-space delay line and one non-polarization-maintaining (PM) fiber delay line. Polarization switching using birefringent-mode nematic liquid crystals and a polarization noise-reduction technique are used to minimize the optical noise when using the cube polarization beamsplitters (PBS's) required in the reflective geometry delay. This gives the high electrical signal-to-noise ratios measured from 52 to 89 dB for the four settings of the delay line.

Publication Date

4-1-1997

Publication Title

IEEE Microwave and Guided Wave Letters

Volume

7

Issue

4

Number of Pages

103-105

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1109/75.563633

Socpus ID

0031121254 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0031121254

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