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 | |
| Publication status | Published - 12 Dec 2005 |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
Cite this
Reilly, M. A., Coleman, B., Pun, E. Y. B., Penty, R. V., White, I. H., Ramon, M., Xia, R., & Bradley, D. D. C. (2005). Optical gain at 650 nm from a polymer waveguide with dye-doped cladding. Applied Physics Letters, 87(23), 1-3. [231116]. https://doi.org/10.1063/1.2140074