Title:
ELECTRO-OPTICAL TEST DEVICE AND METHOD OF USE THEREOF
Document Type and Number:
Japanese Patent JP2019152653
Kind Code:
A
Abstract:
To increase a usable voltage range of an electro-optical test device.SOLUTION: A controller 220 provides an optical carrier signal to a sensor head 230, and receives a phase modulated optical signal modulated at the sensor head 230. The controller 220 also provides and receives a reference optical signal. Then, the controller 220 determines a phase difference between the phase modulated optical signal and the reference optical signal. The phase difference is employed to recover a remote electrical test signal from the sensor head 230. The phase difference is determined by employing a phase modulator in the controller 220 that tracks a phase modulator 233 in the sensor head 230.SELECTED DRAWING: Figure 2
Inventors:
MICHAEL J MENDE
KNIERIM DANIEL G
BOOMAN RICHARD A
KNIERIM DANIEL G
BOOMAN RICHARD A
Application Number:
JP2018245561A
Publication Date:
September 12, 2019
Filing Date:
December 27, 2018
Export Citation:
Assignee:
TEKTRONIX INC
International Classes:
G01R13/40; G01R13/34
Attorney, Agent or Firm:
Yamaguchi International Patent Office