Radar systems require transmission of very high purity signals. Photonics is now mature enough to achieve analog transmission with very low noise, strong immunity, and wide-bandwidth even in harsh environments. We present our recent developments of optimized optical links dedicated to radar and multifunction systems

Recent Breakthroughs in RF Photonics for Radar Systems

This reports on the analysis of technologies opening avenues for potential technological breakthroughs in phased array antennas. We report on recent results on the insertion of hardware technologies such as RF MEMS and RF photonics, in the front-end of phased array antennas. Future prospects for the insertion of nanotechnologies are presented.

Potential technological breakthroughs for phased array antennas

We have fabricated a high speed emitting module associating a 19 GHz-band DFB laser and an amplifier with a 5/spl Omega/ output impedance for microwave direct modulation. The bandwidth of the emitter was measured to be 17 GHz.

Ku-band microwave optical emitter based on a directly modulated DFB laser

This paper reports on the analysis of technologies opening avenues for potential technological breakthroughs in phased array antennas. We will report on recent results on the insertion of hardware technologies such as RF MEMS and RF Photonics, in the front end of phased array antennas. Future prospects for the insertion of nanotechnologies will be also presented.

This paper demonstrates the feasibility of MMICs able to improve the global performances of an optical link, over a typical 1 to 20 GHz frequency range. A distributed laser driver and a photodiode bootstrap follower provide active matching between 50 /spl Omega/ and optoelectronic transducers.

/pdf/mmic-gaas-transimpedance-amplifiers-for-optoelectronic-1k71jfo10w.pdf

MMIC GaAs transimpedance amplifiers for optoelectronic applications

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MMIC GaAs transimpedance amplifiers for optoelectronic applications