Semiconductor temperature sensor

A method for sensing temperature in the presence of an electromagnetic field without disturbing said electromagnetic field, the method comprising:

• fabricating a temperature sensor from a semiconductor material having an optical transmission characteristic for a preselected wavelength as a function of the temperature of the sensor, said sensor being prismatically configurated so as to provide a direct reflective path through said temperature sensor;
• providing a radiation source for said preselected wavelength;
• optically coupling the sensor to the radiation source with a first optical fiber waveguide;
• providing a detector capable of detecting intensity changes in the radiation transmitted along said direct reflective path through the sensor as a function of temperature;
• optically coupling the sensor to the detector with a second optical fiber waveguide;
• and
• sensing temperature by directing the radiation along a direct reflective path from said first optical fiber waveguide through said temperature sensor to said second optical fiber waveguide, and detecting the intensity of the radiation transmitted by the sensor through said second optical fiber waveguide as a function of temperature.