C. Laperle et al., Frequency multiplication of microwave signals by sideband optical injection locking using a monolithic dual-wavelength DFB laser device, IEEE MICR T, 47(7), 1999, pp. 1219-1224
Citations number
27
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
Frequency multiplication of a microwave signal was achieved by modulating o
ne arm of a dual-wavelength distibuted-feedback (DFB) laser device and inje
ction locking the other arm of the device on one of the modulation sideband
s, The dual-wavelength laser consists of two DFB lasers integrated with a Y
-junction combiner on the same semiconductor substrate, thus making a compa
ct device (L = 500 mu m) The output of the combiner was allowed to beat on
a high-speed photodetector, The resulting microwave signal had a narrow lin
e shape superimposed on a Lorentzian pedestal and was at a multiple of the
modulating radio frequency. Three regimes of operation of the laser device
were also observed: chaotic, self-pulsating, and heterodyne.