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Extended range electro-optic voltage accessory

A voltage and electro-optic technology, applied in the direction of electrical components, parts of electrical measuring instruments, and measuring electrical variables

Inactive Publication Date: 2015-06-24
TEKTRONIX INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the linear voltage dynamic range of these devices is limited to a fraction of the pi voltage of the electro-optic sensor

Method used

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  • Extended range electro-optic voltage accessory
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Embodiment Construction

[0014] In the drawings, which are not necessarily drawn to scale, like or corresponding elements of the disclosed systems and methods are denoted by like reference numerals.

[0015] such as figure 1 Electro-optic sensors, such as the electro-optic sensor 100 shown in FIG. Optical transmitter 104 sends an unmodulated light beam to electro-optic sensor 100 . At least two electrodes 108 are connected to a device under test (DUT) 110 . The other two electrodes 120 are connected to a bias controller (not shown) for controlling the bias of the electro-optic sensor. As the unmodulated light travels through the waveguide 112 , the unmodulated light becomes modulated due to the applied electrical signal from the electrode 108 connected to the device under test 110 .

[0016] The modulated light is sent to an optical receiver 114 and converted to an electrical signal in an optical-to-electrical (O / E) converter 116 . The optical-to-electrical converter 116 then sends a signal to a p...

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PUM

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Abstract

A test and measurement system including an electro-optical voltage accessory with an electro-optical sensor configured to output a modulated output signal, a device under test connected to the electro-optical voltage accessory with a variable input signal that exceeds a linear input range of the optical sensor, and a processor. The processor is configured to modify the modulated output signal from the electro-optical voltage accessory to reconstruct the variable input signal of the electro-optical voltage accessory that exceeds the linear input range of the optical sensor.

Description

technical field [0001] The present disclosure relates generally to test and measurement systems and signal acquisition accessories, and more particularly to using a voltage accessory with an optical sensor to accurately display input waveforms to a device under test. Background technique [0002] Electro-optical sensors such as Mach-Zehnder interferometers have been proposed in the past as voltage sensors. However, the linear voltage dynamic range of these devices is limited to a fraction of the pi voltage of electro-optic sensors. If the device under test (DUT) is operating in this linear voltage dynamic range, the available voltage dynamic range is determined by the signal-to-noise ratio at the receiver of the electro-optic sensor. Contents of the invention [0003] Certain embodiments of the disclosed technology relate to a test and measurement system comprising: an electro-optical voltage accessory having an optical sensor configured to output a modulated output signa...

Claims

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Application Information

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IPC IPC(8): G01R13/00
CPCG01R13/0281G01R1/071H04B10/079
Inventor M. J. 门德R. A. 布曼
Owner TEKTRONIX INC