Integrated optical devices for the interferometric...

Details Integrated optical devices for the interferometric... Integrated optical devices for the interferometric...

G - Physics

01

J

73/51

G01J 9/02 (2006.01) G02B 6/12 (2006.01)

Patent

CA 2039226

The measurement device for light waves having an un- balanced optical interferometer consisting of waveguides on a flat substrate material (1) having direction- dependent thermal expansion is thermally compensated without active regulation in that a determined spatial arrangement and a length ratio are selected for the light paths (L1, L1'), in which the optical length of the two waveguides changes precisely by the same amount, so that as a result the optical path difference remains unchanged as a function of the temperature.

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