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All-optical modulation of laser light in amorphous silicon-filled microstructured optical fibers

Dong-Jin Won, Mariola O.Ramirez, Hoonsoo Kang, and Venkatraman Gopalan
Materials Research Institute and Department of Materials Science and Engineering, Pennsylvania State University, University Park, Pennsylvania 16802, USA

Neil F.Baril, Jacob Calkins, and John V.Badding
Materials Research Institute and Department of Chemistry, Pennsylvania State University, University Park, Pennsylvania 16802, USA

Pier J.A.Sazio
Optoelectronics Research Centre, University of Southampton, UK

Abstract

Amorphous silicon is deposited within optical fibers by a high pressure microfluidic deposition process and characterized via Raman spectroscopy. All-optical modulation of 1.55 μm light guided through the silicon core is demonstrated using the free carrier absorption generated by a 532 nm pump pulse. Modulation depths of up to 8.26 dB and modulation frequencies of up to 1.4 MHz are demonstrated.


Applied Physics Letters (2007) Vol.91 pp.161112

doi: 10.1063/1.2790079

Southampton ePrint id: 78874

 

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