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

Research output: Contribution to journalArticlepeer-review

47 Scopus citations


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. © 2005 American Institute of Physics.
Original languageEnglish (US)
JournalApplied Physics Letters
Issue number23
StatePublished - Dec 12 2005
Externally publishedYes

Bibliographical note

Generated from Scopus record by KAUST IRTS on 2019-11-27


Dive into the research topics of 'Optical gain at 650 nm from a polymer waveguide with dye-doped cladding'. Together they form a unique fingerprint.

Cite this