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US 4,300,814 AGranted
Method for balancing an integrated optical device and a device obtained by means of said method
OwnerAlain Carencoinventor
Life of this patent
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Abstract
A method for balancing an integrated optical device having at least two similar arms each constituted by a light guide consists in depositing a thin metal film on at least one of the two guides, in measuring the unbalance between the light intensities transmitted by the two arms and then in adjusting the dimensions of the thin metal film in order to cancel the unbalance.
Claims7
A method for balancing an integrated optical device comprising at least two similar arms each constituted by a light guide, wherein said method consists:
- in depositing a thin metal film on at least one of the two guides,
- in measuring the unbalance between the light intensities transmitted by the two arms,
- in adjusting the dimensions of the thin metal film so as to reduce said unbalance to zero.
Dependencies are inferred from the claim text.