High Sensitivity Wideband Analog Fiber-Optic Link Based on Integrated Optical Modulator

Period of Performance: 05/18/1995 - 05/19/1997


Phase 2 SBIR

Recipient Firm

Interscience, Inc.
105 Jordan Road
Troy, NY 12180
Principal Investigator

Research Topics


In performing High Power Microwave vulnerability assessments on electronic devices, the Army has the need for an analog fiber-optic link with bandwidth that extends beyond 5 GHz. Present technology is limited to about 1 GHz. Under the Phase I effort, we have validated a design for an integrated link based on the use of a Mach-Zehnder interferometer for phase modulation of a 1.3m laser with bandwidth approaching 10 GHz, that is nearly an order of magnitude better than the present state-of-the-art. The implementation of the design developed under the Phase I effort with further improvements to extend the bandwidth, dynamic range and sensitivity, incorporation of remote control capabilities, and reduction in size of the unit to meet the needs of the U S Army is proposed. The developmental effort will also lead to a number of spin-offs with very substantial commercial value. The company has an established track record in follow-on commercialization of SBIR results and anticipates to introduce a number of commercial products based on the Phase II development with commitment of Phase III funding from non-federal sources that have been secured.