A high-gain directly modulated L-band microwave optical link

A directly modulated microwave optical data link has yielded high gain. An efficient lossless impedance matching approach was used to maximize the transducer gains in the laser and detector matching networks. The free-space optical link operates at 900 MHz with a peak gain of 3.7 dB over a 3-dB bandwidth of 90 MHz. The link also exhibits a wide dynamic range of 89 dB-MHz. This optical data link is the first to function without any active amplification.<
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