Oscillators – With device responsive to external physical condition – Temperature or light responsive
Reexamination Certificate
2009-02-06
2011-10-04
Gannon, Levi (Department: 2817)
Oscillators
With device responsive to external physical condition
Temperature or light responsive
C250S227120, C359S245000, C372S038060, C372S038020, C385S003000, C385S008000
Reexamination Certificate
active
08031012
ABSTRACT:
The objects of the present invention are to shorten a cavity length of an optoelectronic oscillator and to integrate on a semiconductor or SiO2-substrate. An optoelectronic oscillator10have an optoelectronic loop comprising a semiconductor laser11, an optical waveguide12guiding laser light emitted from the semiconductor laser, a photodetector13detecting laser light guided by the optical waveguide and outputting an electrical signal, an amplifier14amplifying the electrical signal outputted from the photodetector, generating an amplified signal and formed on a semiconductor substrate15. Laser light emitted from the semiconductor laser11is controlled by generated amplified signal and it oscillates with a fundamental oscillation frequency determined by a delay time of carrier in the optoelectronic loop circuit or one of the high harmonic components of integral multiples of a fundamental oscillation frequency.
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Furukawa Electric Co. Ltd.
Gannon Levi
Turocy & Watson LLP
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