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Proceedings Paper

Polymeric variable optical attenuator based on surface plasmon polariton
Author(s): Suntak Park; Yong-Sung Eom; Hyong Sik Won; Seok Ho Song
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Paper Abstract

We propose 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 single mode fibers, gold stripes with 20-nm thickness, 4-μm width and 1-cm length are utilized. To obtain 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 characterized at a wavelength of 1.55 μm, exhibiting high attenuation of less than 30 dB with the operating power of 100 mW. The fiber-to-fiber total insertion loss of 6.1 dB is achieved when using single mode fibers.

Paper Details

Date Published: 20 April 2006
PDF: 7 pages
Proc. SPIE 6183, Integrated Optics, Silicon Photonics, and Photonic Integrated Circuits, 61831G (20 April 2006); doi: 10.1117/12.661655
Show Author Affiliations
Suntak Park, Electronics and Telecommunications Research Institute (South Korea)
Yong-Sung Eom, Electronics and Telecommunications Research Institute (South Korea)
Hyong Sik Won, Samsung Electro-Machanics Co., LTD (South Korea)
Seok Ho Song, Hanyang Univ. (South Korea)


Published in SPIE Proceedings Vol. 6183:
Integrated Optics, Silicon Photonics, and Photonic Integrated Circuits
Giancarlo C. Righini, Editor(s)

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