ETRI-Knowledge Sharing Plaform

KOREAN
논문 검색
Type SCI
Year ~ Keyword

Detail

Journal Article Polymeric Variable Optical Attenuator based on Long Range Surface Plasmon Polaritons
Cited 46 time in scopus Share share facebook twitter linkedin kakaostory
Authors
S. Park, S.H. Song
Issue Date
2006-03
Citation
Electronics Letters, v.42, no.7, pp.402-404
ISSN
0013-5194
Publisher
IET
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.1049/el:20060236
Abstract
Proposed is a polymeric variable optical attenuator based on long range surface plasmon polaritons (LRSPPs) along a thin metal stripe embedded in polymers. The device is operated by controlling radiation loss of the LRSPP mode resulting from the temperature gradient of the polymer cladding caused by a heater. For guiding LRSPPs and efficient coupling of singlemode fibres, gold stripes 20 nm thick, 4 μm wide and 1 cm long are utilised. To obtain a long physical lifetime, the heater is formed on the top of the polymer cladding with a 200 nm Au film which is about ten times thicker than the thin metal waveguide. The fabricated device is characterised at a wavelength of 1.55 μm, exhibiting high attenuation of less than 30 dB with an operating power of 100 mW. A fibre-to-fibre total insertion loss of 6.1 dB is achieved when using singlemode fibres.
KSP Keywords
20 nm, Au film, Efficient coupling, Long-range surface plasmon, Operating power, Polymer cladding, Radiation loss, Surface plasmon(SP), Temperature gradient, insertion loss, surface plasmon polariton(SPP)