Patent ID: 6407561
Filing Date: 2002-06-18
Classification: G01R

Abstract:
A probe for an electro-optic sampling oscilloscope comprising:a laser diode for emitting a laser beam based on a control pulse signal of the electro-optic sampling oscilloscope; a collimating lens for collimating said laser beam; an electro-optic element having a reflecting film at one end and having an optical property thereof that changes due to an electric field propagated through a metal pin provided at one surface on the reflecting film; an isolator between said collimating lens and said electro-optic element for separating the laser beam reflected by said reflecting film after passing the laser beam emitted by said laser diode; and photodiodes for converting the reflected light separated by said isolator into electric signals; wherein, the probe for the electro-optic sampling oscilloscope further comprises: a temperature detecting element in contact with said electro-optic element for detecting and outputting a temperature of said electro-optic element; a temperature adjusting element in contact with said electro-optic element, for adjusting the temperature of said electro-optic element in response to the detected temperature; and a temperature controlling means for controlling said temperature adjusting element based on said detected temperature.