Wideband microwave and millimeter wave filters using photonic spectral filtering
First Claim
Patent Images
1. An apparatus for filtering a waveform, comprising:
- an electro-optic modulator adapted to accept a first optical signal and an electrical modulating signal;
a optical filter adapted to accept an output of the modulator and to modify at least one of an amplitude or phase of the modulator output within a bandwidth of the electrical signal; and
an opto-electronic converter.
1 Assignment
0 Petitions
Accused Products
Abstract
An apparatus and method is disclosed for producing and filtering optical and electrical waveforms. The apparatus includes an electro-optical modulator, an optical filter capable of modulating at least two spectral regions within the bandwidth of the electrical waveform, and an optical-to-electrical converter. The optical filter includes a spatial dispersion means, a spatial modulating means having the capability to substantially independently modulate a characteristic of each of a pair of optical spatial elements.
-
Citations
40 Claims
-
1. An apparatus for filtering a waveform, comprising:
-
an electro-optic modulator adapted to accept a first optical signal and an electrical modulating signal; a optical filter adapted to accept an output of the modulator and to modify at least one of an amplitude or phase of the modulator output within a bandwidth of the electrical signal; and an opto-electronic converter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 36, 37, 38, 39)
-
-
19. An apparatus for producing electrical waveforms, comprising:
-
an electro-optical modulator configured to accept a first optical signal and an electrical signal; an optical filter that varies at least one of the amplitude or phase of an optical output signal of the electro-optical modulator as a function of wavelength within the bandwidth of the electrical signal; and an opto-electrical detector. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
-
-
33. A method of filtering an electrical signal, the method comprising:
-
providing an electro-optical modulator adapted to accept an optical signal and an electrical modulating signal; optically filtering the modulated optical signal, where the optical filter characteristics are a function of wavelength within a bandwidth of the electrical modulating signal; and detecting the filtered optical signal. - View Dependent Claims (34, 35)
-
-
40. An apparatus for generating electrical signals, comprising;
-
means for modulating an optical signal with an electrical signal; means for modifying an optical spectrum of the modulated optical signal; and means for detecting the modified modulated optical signal.
-
Specification