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Proceedings Paper

Waveguide binary photonic true-time-delay lines using polymer integrated switches and waveguide delays
Author(s): Wenshen Wang; Yongqiang Shi; Weiping Lin; James H. Bechtel
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Paper Abstract

Photonic programmable binary delay lines capable of long total delay with small incremental intervals can greatly simplify delay line networks for phased array systems. With the increase in operation frequency and angular scan resolution, the delay length accuracy can reach magnitudes of micrometer for millimeter wave frequencies, while the largest delay length can be tens of centimeters for even a moderate number of array elements. Using micro-fabrication technologies, an integrated optic delay line/switch network can achieve such delay performance on a single integrated optic chip that is compact and light weight, and of low optical insertion loss. Polymer nonlinear optical materials have unique features that are particularly attractive to waveguide photonic integrated delay line applications. Long polymer waveguides can be fabricated on a large inexpensive wafer with microelectronics resolution, and integrated with fast electro-optic switches and broadband electro-optic modulators. With the advances in materials synthesis and device fabrication, such low cost polymer programmable delay line chips become increasingly realistic. We propose here an integrated polymer delay line design and report fabrication of polymeric photonic switches and modulators. The related technical issues, including material stability issues, that may affect device design, fabrication, and applications are also discussed.

Paper Details

Date Published: 22 November 1996
PDF: 12 pages
Proc. SPIE 2844, Photonics and Radio Frequency, (22 November 1996); doi: 10.1117/12.259005
Show Author Affiliations
Wenshen Wang, TACAN Corp. (United States)
Yongqiang Shi, TACAN Corp. (United States)
Weiping Lin, TACAN Corp. (United States)
James H. Bechtel, TACAN Corp. (United States)


Published in SPIE Proceedings Vol. 2844:
Photonics and Radio Frequency
Brian M. Hendrickson, Editor(s)

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