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Optical Engineering

High performance thermo-optic switches based on low-loss acrylate polymers
Author(s): Lawrence W. Shacklette; Paul M. Ferm; Robert Blomquist; MacRae Maxfield; Kevin Mark Killian; L.S. How Kee Chun
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Paper Abstract

We design and fabricate digital thermo-optic switches using low-loss photocuring fluoroacrylate polymers. We use both modeling and experimental design-rule studies to elucidate the contributions to loss and cross talk of the various important building blocks that comprise a Y-branch digital optical switch (YDOS). We present the results of these studies as well as the achieved performance for 1×2, 2×2, and 4×4 switches fabricated with these designs. Average fiber-to-fiber chip- level insertion loss (IL) values for the three designs are 1.1, 1.5, and 2.8 dB, respectively, for 1550-nm illumination. Switching times in every case are below 3 ms. Polarization-dependent loss is less than 0.1 dB at 1550 nm. Fully packaged permanently pigtailed versions of the 2×2 and 4×4 switches are also constructed. For these packaged devices, average insertion losses of 2.0 and 3.3 dB are achieved, and cross talk is maintained at a value less than –45 dB. Recent advances in materials performance have now allowed the insertion loss performance to be further improved, with chip-level IL being reduced to 1.0 and 2.2 dB for 2×2 and 4×4 switches, respectively.

Paper Details

Date Published: 1 October 2003
PDF: 9 pages
Opt. Eng. 42(10) doi: 10.1117/1.1601617
Published in: Optical Engineering Volume 42, Issue 10
Show Author Affiliations
Lawrence W. Shacklette, Corning Inc. (United States)
Paul M. Ferm, Corning Inc. (United States)
Robert Blomquist, Corning, Inc. (United States)
MacRae Maxfield, Corning Inc. (United States)
Kevin Mark Killian, Corning Inc. (United States)
L.S. How Kee Chun, Corning SA (France)

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