Low Noise, Large Capacity Photonic Frontend

Award Information
Agency: Department of Defense
Branch: Defense Advanced Research Projects Agency
Contract: DAAH0101CR169
Agency Tracking Number: 01SB1-0123
Amount: $98,648.00
Phase: Phase I
Program: SBIR
Awards Year: 2001
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
10 Corporate Place, South Bedford Street, Burlington, MA, 01803
DUNS: 049405111
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Geert Wyntjes
 Senior Staff Scientist
 (781) 273-2820
Business Contact
 John Bates
Title: Treasurer
Phone: (781) 273-2820
Email: bates@visidyne.com
Research Institution
Visidyne proposes to address the design of a wideband, low noise photonic RF frontend to improve on the trade between a channel's signal-to-noise or capacity and its aggregate channel count. The underlying technology to do this is a photonic parametricamplifier, where an optical carrier is linearly deviated over a large phase angle with a modulation index approaching unity, and powered by a laser diode. Key to the success of the effort will be to extend Visidyne's demonstrated capabilities of linear phase recovery of the modulated carrier from the MHz domain into the GHz region. This step is expected to be aided by the recent availability ofefficient laser diodes and modulators with greatly improved performance in terms of their gain-bandwidth product and from faster electronic signal processors.RF frontends, that have low noise figures and at the same time, because of their linear response and low intermodulation distortion are essential when a jumble of widely varying (in amplitude) signals need to be transmitted as is for example the case indense spectrum environments for cellular phones and secure military communication links.

* Information listed above is at the time of submission. *

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