Frequency multiplication of microwave signals by sideband optical injection locking using a monolithic dual-wavelength DFB laser device

Frequency multiplication of a microwave signal was achieved by modulating one arm of a dual-wavelength distibuted-feedback (DPB) laser device and injection locking the other arm of the device on one of the modulation sidebands. The dual-wavelength laser consists of two DFB lasers integrated with a Y...

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Bibliographic Details
Published in:IEEE transactions on microwave theory and techniques 1999-07, Vol.47 (7), p.1219-1224
Main Authors: Laperle, C., Svilans, M., Poirier, M., Tetu, M.
Format: Article
Language:English
Subjects:
Devices
Frequency conversion
High speed
High speed optical techniques
Injection locking
Injection-locked oscillators
Lasers
Masers
Microwave devices
Microwaves
Multiplication
Optical mixing
Optical modulation
Photodetectors
Semiconductor lasers
Semiconductors
Sidebands
Substrates
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Summary:Frequency multiplication of a microwave signal was achieved by modulating one arm of a dual-wavelength distibuted-feedback (DPB) laser device and injection locking the other arm of the device on one of the modulation sidebands. The dual-wavelength laser consists of two DFB lasers integrated with a Y-junction combiner on the same semiconductor substrate, thus making a compact device (L=500 /spl mu/m). The output of the combiner was allowed to beat on a high-speed photodetector. The resulting microwave signal had a narrow line 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.
ISSN:0018-9480
1557-9670
DOI:10.1109/22.775460