Title

Fault-Tolerant Polarization-Insensitive Photonic Delay Line Architectures Using Two-Dimensional Digital Micromirror Devices

Keywords

42.79.H; 42.79.Kr; 42.79.S.T; 95.75.Q; Digital micromirror device; Optical delay line; Phased array antenna

Abstract

A binary multichannel photonic delay line (PDL) module is introduced that gives balanced loss switched states and a polarization-insensitive operation via the use of binary operation Digital Micromirror Devices (DMDs). Experimental demonstration of a DMD-based PDL architecture is performed for a 6.84-ns time delay design. Experimental results include a 25-beam feed interchannel crosstalk test indicating a <-60 dB optical interchannel crosstalk level for a 0.381 mm interchannel distance in the multichannel PDL. An average optical signal-to-leakage noise ratio of 35.33 dB is measured for this PDL. A butterfly design PDL optical architecture is proposed for minimizing loss and improving assembly accuracy. These DMD-based variable PDLs can be used in applications ranging from radio frequency (RF) fiber-optic signal processing systems to adaptive optics for astronomical and laser radar arrays.

Publication Date

2-15-1999

Publication Title

Optics Communications

Volume

160

Issue

4-6

Number of Pages

311-320

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/S0030-4018(98)00639-7

Socpus ID

0033075728 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0033075728

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