Low-loss polymeric optical waveguides with large cores fabricated by hot embossing

H. Mizuno; O. Sugihara; T. Kaino; N. Okamoto; M. Hosino

doi:10.1364/OL.28.002378

Optics Letters
Vol. 28,
Issue 23,
pp. 2378-2380
(2003)
•https://doi.org/10.1364/OL.28.002378

Low-loss polymeric optical waveguides with large cores fabricated by hot embossing

H. Mizuno, O. Sugihara, T. Kaino, N. Okamoto, and M. Hosino

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H. Mizuno, O. Sugihara, T. Kaino, N. Okamoto, and M. Hosino, "Low-loss polymeric optical waveguides with large cores fabricated by hot embossing," Opt. Lett. 28, 2378-2380 (2003)

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Abstract

A simple low-cost method of fabricating polymeric optical waveguides with large core sizes for plastic optical fibers is presented. The waveguides are fabricated by hot embossing with an ultraviolet-cured epoxy resin stamper. The stamper is fabricated by replication of a rectangular groove mold that is made from silicone rubber replicated from a ridged original silicon master. The master is fabricated by anisotropic etching of (110) single-crystal silicon. Optical waveguides with large core sizes of $100 - 500 µ m$ have been fabricated, and a low propagation loss of $0.19 dB / cm$ at 650 nm was achieved.

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Method Number	Undercladding Ra $(µ m)$ a	Silicon Master Ra $(µ m)$
1	$> 0.4$	$> 0.3$ a
2	0.06	0.04b

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Optics Letters