© Skyarna Ltd 2012

 

Opto-electronic interface

 

Previous work conducted by Skyarna’s partners has either been for commercial customers who have required confidentiality or has been for classified military projects. Consequently information on this work has not been published. However, the projects have involved the following:

 

• Design of a transimpedance amplifier for a 40 Gbps optical receiver. InP MMIC transimpedance amplifiers were developed for use with photo-detector diodes. The amplifiers gave >170 ohms transimpedance with <2.5 ps group delay an 0.3 dB peak to peak ripple from dc to 45 GHz.

 

• Design of a transimpedance amplifier and D-type flip-flip pulse stretcher MMIC used to detect as short as 5 ps zeros in a multi-level optical correlator signal. The design used mixed signal circuit techniques on the GCS InP SHBT process. This first pass design successfully de-risked the “DARPA hard” seedling contract.

 

• Design and fabrication of Divide-by-8 prescalar with multi-GHz clock rates using the GCS high performance InP HBT process.

 

InSb Evaluation

 

• “Indium Antimonide Based Technology for RF Applications” Ashley, T.; Buckle, L.; Emeny, M.T.; Fearn, M.; Hayes, D.G.; Hilton, K.P.; Jefferies, R.; Martin, T.; Phillips, T.J.; Powell, J.; Tang, A.W.H.; Wallis, D.; Wilding, P.J.;
  Compound Semiconductor Integrated Circuit Symposium, 2006 IEEE, Nov. 2006 Page(s):121 - 124

 

• “Indium Antimonide based Quantum Well FETs for Ultra-high Frequency, Low Power Dissipation Circuits” Ashley, T.; Buckle, L.; Emeny, M.T.; Fearn, M.; Hayes, D.G.; Hilton, K.P.; Jefferies, R.; Martin, T.; Phillips, T.J.; Powell, J.; Tang, A.W.H.; Wallis, D.; Wilding, P.J.; European Microwave Integrated Circuits Conference, The 1st Sept. 2006 Page(s):29 - 30

 

• “Indium Antimonide based Quantum Well FETs for Ultra-High Speed Electronics” Ashley, T.; Buckle, L.; Emeny, M.T.; Fearn, M.; Hayes, D.G.; Hilton, K.P.; Jefferies, R.; Martin, T.; Nash, K.J.; Phillips, T.J.; Powell, J.; Tang, W.H.A.; Uren, M.J.; Wallis, D.J.; Wilding, P.J.; Datta, S.; Chau, R.; Device Research Conference, 2006 64th June 2006 Page(s):201 - 202