The Gopalan Group

Research of Photonic Materials, Probes, and Devices

MSC Location & Infrastructure

The Millennium Science Complex (MSC)

N-317 Millennium Science Complex
Pollock Road
University Park, PA 16802
phone: 814.863.8407
email: mri-info@psu.edu
fax: 814.865.7173

MCL: 814-865-2328
cmo11@psu.edu
Nanofab: 814-865-7348
nanofab@psu.edu
Safety & Equipment Training: 814-865-7348
mri-safety@psu.edu

MRI Floor Plans
Campus Map
Directions

Subscribe

Free subscriptions to newsletters, print publications, and more

Metamaterials

Amorphous silicon-filled microstructures optical fibers for in-fiber light modulation

D. Won, M. O. Ramirez, V. Gopalan, H. Kang, N. F. Baril, J. Calkins, P. J. A. Sazio, J. V. Badding and V. Gopalan, Appl. Phys. Lett. 91, 161112-1/3(2007). PDF

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.

Sample Figure