Optical waveguides – Integrated optical circuit
Reexamination Certificate
2006-01-04
2008-11-25
Kianni, K. Cyrus (Department: 2883)
Optical waveguides
Integrated optical circuit
C385S015000, C385S003000, C398S193000
Reexamination Certificate
active
07457489
ABSTRACT:
In one implementation, a method is provided for frequency tuning of a photonic oscillator. The method includes supplying an optical signal, for example laser light, which is modulated, delayed, and then converted to an electrical signal. The electrical signal is amplified, and used in modulating the optical signal. With this implementation, the frequency of the an output signal of the photonic oscillator is shifted by adjusting a bias voltage of the amplifier. In some implementations, shifting the frequency of the output signal further includes using a frequency lock loop circuit. In some implementations, shifting the frequency of an output signal of the photonic oscillator further comprises adjusting at least one of an phase shifter in series with the amplifier, an optical fiber stretcher, or a bias voltage of a second amplifier.
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Balzan Christopher R.
HRL Laboratories LLC
Kianni K. Cyrus
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