Optical gain at 650 nm from a polymer waveguide with dye-doped cladding

M. A. Reilly; B. Coleman; E. Y.B. Pun; R. V. Penty; I. H. White; M. Ramon; R. Xia; D. D.C. Bradley

doi:10.1063/1.2140074

Optical gain at 650 nm from a polymer waveguide with dye-doped cladding

M. A. Reilly, B. Coleman, E. Y.B. Pun, R. V. Penty, I. H. White, M. Ramon, R. Xia, D. D.C. Bradley

Vice Chancellor's Office

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41 Citations (Scopus)

Abstract

Signal amplification at the polymer optical fiber low-loss window of 650 nm is reported in an SU8 rib waveguide coated with Rhodamine-640 doped poly(methyl methacrylate). A signal beam is end-fired into the facet of a 7×100 μm waveguide and amplified by top pumping of the 2-μm -thick cladding region with a pulsed pump source focused into a 9-mm-long stripe. A gain of 14dB and a minimum signal-to-noise ratio of around 2 dB are achieved in a 15-mm-long device with a low threshold pump intensity of 0.25 μJ mm2, which is an order of magnitude lower than previously reported.

Original language	English
Article number	231116
Pages (from-to)	1-3
Number of pages	3
Journal	Applied Physics Letters
Volume	87
Issue number	23
DOIs	https://doi.org/10.1063/1.2140074
Publication status	Published - 12 Dec 2005

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.2140074

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abstract = "Signal amplification at the polymer optical fiber low-loss window of 650 nm is reported in an SU8 rib waveguide coated with Rhodamine-640 doped poly(methyl methacrylate). A signal beam is end-fired into the facet of a 7×100 μm waveguide and amplified by top pumping of the 2-μm -thick cladding region with a pulsed pump source focused into a 9-mm-long stripe. A gain of 14dB and a minimum signal-to-noise ratio of around 2 dB are achieved in a 15-mm-long device with a low threshold pump intensity of 0.25 μJ mm2, which is an order of magnitude lower than previously reported.",

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AU - Reilly, M. A.

AU - Coleman, B.

AU - Pun, E. Y.B.

AU - Penty, R. V.

AU - White, I. H.

AU - Ramon, M.

AU - Xia, R.

AU - Bradley, D. D.C.

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AB - Signal amplification at the polymer optical fiber low-loss window of 650 nm is reported in an SU8 rib waveguide coated with Rhodamine-640 doped poly(methyl methacrylate). A signal beam is end-fired into the facet of a 7×100 μm waveguide and amplified by top pumping of the 2-μm -thick cladding region with a pulsed pump source focused into a 9-mm-long stripe. A gain of 14dB and a minimum signal-to-noise ratio of around 2 dB are achieved in a 15-mm-long device with a low threshold pump intensity of 0.25 μJ mm2, which is an order of magnitude lower than previously reported.

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