Optical amplifier based on electro-optic effect for electrical signals and its application as semiconductor radiation detector preamplifier
OwnerXiaochao Xuinventor
Life of this patent
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Abstract
An amplifier for amplification of an electrical signal comprises an electro-optic (EO) medium for receiving the electrical signal, wherein applying the electrical signal to the EO medium causes a change to an effective index of refraction, a device configured for measuring a light phase change for measuring the change to the effective index of refraction, and a photodetector configured to convert the change to the effective index of refraction into an amplified electrical current output signal.
Claims20
An electrical signal amplification system comprising:
- an electrical signal amplifier for amplifying an electrical signal, the electrical signal amplifier having
- an electro-optic (EO) medium for receiving the electrical signal, wherein applying the electrical signal to the EO medium causes a change to an effective index of refraction;
- a device for measuring a light phase change for measuring the change to the effective index of refraction;
- and
- a photodetector;
- wherein the photodetector converts the change to the effective index of refraction into an amplified electrical current output signal.
An electrical signal amplification system, comprising:
- a semiconductor radiation detector;
- a preamplifier for amplification of an electrical signal for detection by the semiconductor radiation detector, the preamplifier having:
- an electro-optic (EO) medium comprising a first mirror and a second mirror for receiving the electrical signal, wherein applying the electrical signal to the EO medium causes a change to an effective index of refraction;
- a monochromatic laser source configured to emit a laser towards the EO medium directly or indirectly to bounce inside the EO medium many times in order to increase a phase shift of the laser;
- a device for measuring the change to the effective index of refraction;
- and
- a photodetector;
- wherein the photodetector converts the change to the effective index of refraction into an amplified electrical current output signal.
A method of amplifying an electrical signal comprising:
- receiving the electrical signal at an electro-optic (EO) medium comprising a first mirror and a second mirror, wherein applying the electrical signal to the EO medium causes a change to an effective index of refraction;
- emitting, using a monochromatic laser source, a laser either directly or indirectly towards the EO medium to bounce inside the EO medium many times in order to increase a phase shift of the laser;
- measuring, using a device, the change to the effective index of refraction;
- and
- converting, using a photodetector, the change to the effective index of refraction into an amplified electrical current output signal.
Dependencies are inferred from the claim text.