L. Noel et al., OPTICAL MILLIMETER-WAVE GENERATION TECHNIQUE WITH HIGH-EFFICIENCY, PURITY AND STABILITY, Electronics Letters, 32(21), 1996, pp. 1997-1998
A new technique is proposed and demonstrated for the optical generatio
n of high power, high purity millimetre-wave signals, which uses optic
al heterodyning of two singlemode lasers to generate a beat signal in
a photodiode. The lasers are in a series (master/slave) configuration,
and very low phase noise is produced in the beat signal simply by sub
harmonic electrical injection of the slave laser.