Broadband wavelength conversion at 40Gb/s using long serpentine As2S3 planar waveguides
Date
2007-10-30
Authors
Ta'eed, Vahid G
Pelusi, Mark
Eggleton, Benjamin J
Madden, Steve
Bulla, Douglas
Luther-Davies, Barry
Choi, Duk-Yong
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Volume Title
Publisher
Optical Society of America
Abstract
We demonstrate broadband wavelength conversion of a 40 Gb/s
return-to-zero signal by cross-phase modulation in a newly developed
chalcogenide glass waveguide based photonic chip. These new serpentine
As2S3 waveguides offer a nonlinear coefficient ≈1700 W-1km-1 with 5×
lower propagation loss over a length of 22.5 cm which ensures the full
propagation length contributes towards the nonlinear process. This reduces
the peak operating power thereby allowing a ×4 increase in the data rate
compared with previous results. Spectral measurements show the device
operates over a span of 40 nm while system measurements show just over 1
dB of power penalty at a bit-error rate of 10-9. This is primarily due to the
compact planar waveguide design which minimizes the effect of groupvelocity
dispersion.
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Keywords
optical communications, nonlinear optical signal processing, frequency conversion, integrated optics devices
Citation
Optics Express 15.23 (2007): 15047 - 15052
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Source
Optics Express
Type
Journal article
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