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Sub-dB/cm propagation loss in silver stripe waveguides

Park, Suntak, Ju, Jung Jin, Kim, Jin Tae, Kim, Min-su, Park, Seung Koo, Lee, Jong-Moo, Lee, Wook-Jae and Lee, Myung-Hyun 2009. Sub-dB/cm propagation loss in silver stripe waveguides. Optics Express 17 (2) , pp. 697-702. 10.1364/OE.17.000697

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Abstract

We demonstrate sub-dB/cm propagation losses in polymer-based silver stripe waveguides at the wavelength of 1.31 μm. The silver stripe waveguides were fabricated in a low-loss fluorinated polymer clad. To form uniform metal stripe patterns, which are essential for reducing propagation loss, we developed a lift-off process using double layers of photoresist and SiNx. A propagation loss of less than 1.0 dB/cm was obtained with the 11-nm-thick silver stripes in the width range of 1.5 - 4.5 μm. A coupling loss of ~1.0 dB with a polarization maintaining single mode fiber was achieved for a width of 4.5 μm. For a width of 2.0 μm, we recorded a minimum propagation loss of 0.4 dB/cm, which is comparable with that of dielectric multi-mode waveguides.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QC Physics
Publisher: Optical Society of America
ISSN: 1094-4087
Date of Acceptance: 6 January 2009
Last Modified: 10 Oct 2017 17:05
URI: http://orca.cf.ac.uk/id/eprint/89716

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