Multiplication of phase deviations
First Claim
1. A phase deviation multiplication apparatus, comprising:
- a plurality of sequentially arranged phase deviation multipliers comprising at least a first phase deviation multiplier and a last phase deviation multiplier,each of the plurality of phase deviation multipliers being responsive to an input signal and a pump signal to generate a respective plurality of frequency combs, each of the frequency combs having a respective phase deviation multiplication factor relative to the phase deviation of the input signal of the respective phase deviation multiplier, each of the plurality of phase deviation multipliers providing a selected phase deviated signal bypassing a selected frequency comb, the selected frequency comb providing a predetermined phase deviation multiplication factor,at least one phase deviation multiplier prior to the last phase deviation multiplier filtering out at least one of its input signal or its pump signal;
wherein the first phase deviation multiplier is configured to receive an input signal and the last phase deviation multiplier is configured to generate a last phase deviated signal, andwherein the last phase deviated signal has a phase deviation multiplication factor that is the product of the respective predetermined phase deviation multiplication factors of the plurality of phase deviation multipliers.
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Abstract
Technologies are described herein for a phase deviation multiplication apparatus that implements an in-place multiplication approach for multiplying the phase deviation of an input signal while maintaining the frequency of the carrier signal within a frequency band of operation. According to an embodiment, a multi-stage phase deviation multiplication apparatus includes a plurality of sequentially arranged phase deviation multipliers, including at least a first phase deviation multiplier and a last phase deviation multiplier. The phase deviation multipliers have respective predetermined phase deviation multiplication factors. The first phase deviation multiplier receives an input signal and the last phase deviation multiplier generates a last phase deviated signal. The last phase deviated signal has a phase deviation multiplication factor that is the product of the respective predetermined phase deviation multiplication factors of the plurality of phase deviation multipliers.
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Citations
20 Claims
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1. A phase deviation multiplication apparatus, comprising:
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a plurality of sequentially arranged phase deviation multipliers comprising at least a first phase deviation multiplier and a last phase deviation multiplier, each of the plurality of phase deviation multipliers being responsive to an input signal and a pump signal to generate a respective plurality of frequency combs, each of the frequency combs having a respective phase deviation multiplication factor relative to the phase deviation of the input signal of the respective phase deviation multiplier, each of the plurality of phase deviation multipliers providing a selected phase deviated signal bypassing a selected frequency comb, the selected frequency comb providing a predetermined phase deviation multiplication factor, at least one phase deviation multiplier prior to the last phase deviation multiplier filtering out at least one of its input signal or its pump signal; wherein the first phase deviation multiplier is configured to receive an input signal and the last phase deviation multiplier is configured to generate a last phase deviated signal, and wherein the last phase deviated signal has a phase deviation multiplication factor that is the product of the respective predetermined phase deviation multiplication factors of the plurality of phase deviation multipliers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for multiplying the phase of an electromagnetic signal while maintaining the electromagnetic signal within a frequency band of operation, the method comprising:
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generating a first plurality of frequency combs by providing an input signal and a pump signal to a first nonlinear device; selecting a first filtered phase deviated signal from the first plurality of frequency combs and removing at least one of the input signal or the pump signal by filtering the first plurality of frequency combs through a first selective bandpass filter, generating a second plurality of frequency combs by providing the first filtered phase deviated signal and a pump signal to a second nonlinear device; selecting a second filtered phase deviated signal from the second plurality of frequency combs by filtering the second plurality of frequency combs through a second selective bandpass filter; wherein the second filtered phase deviated signal has a greater phase deviation relative to the input signal and a greater phase deviation relative to the first filtered phase deviated signal, and is maintained within the same frequency band of operation as the input signal. - View Dependent Claims (11, 12, 13, 14)
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15. A phase deviation multiplier, comprising:
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a pump laser configured to generate a pump laser signal; a first combiner configured to receive the pump laser signal and an input signal and to generate a combined signal; a first nonlinear device configured to receive the combined signal and configured to generate a plurality of frequency combs having respective amplified phase deviations relative to the input signal; a first selective bandpass filter configured to receive the plurality of frequency combs and configured to selectively output a first selected frequency comb as a first filtered phase deviated signal and to remove at least one of the pump laser signal or the input signal; a second nonlinear device configured to receive the first filtered phase deviated signal from the first selective bandpass filter and a pump signal and configured to generate a second plurality of frequency combs having respective amplified phase deviations relative to the first filtered phase deviated signal; and a second selective bandpass filter configured to receive the second plurality of frequency combs and configured to selectively output a second frequency comb as a second filtered phase deviated signal. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification