Polymeric variable optical attenuator based on long range surface plasmon polaritons
- Authors
- Park, S; Song, SH
- Issue Date
- Mar-2006
- Publisher
- INSTITUTION ENGINEERING TECHNOLOGY-IET
- Citation
- ELECTRONICS LETTERS, v.42, no.7, pp.402 - 404
- Indexed
- SCIE
SCOPUS
- Journal Title
- ELECTRONICS LETTERS
- Volume
- 42
- Number
- 7
- Start Page
- 402
- End Page
- 404
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/181738
- DOI
- 10.1049/el:20060236
- ISSN
- 0013-5194
- 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 mu m 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 run All film which is about ten times thicker than the thin metal waveguide. The fabricated device is characterised at a wavelength of 1.55 mu m, exhibiting high attenuation of less than 30 dB with all operating power of 100 mW A fibre-to-fibre total insertion loss of 6.1 dB is achieved when using singlemode fibres.
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