Contra-propagative wave spectograph
First Claim
1. Spectrograph includinga waveguide (10) provided with two accesses (10a, 10b, 12),means for injecting two guided contra-propagative waves by each of said accesses in such a way that a spatial interference is formed in said waveguide,means for detecting (19, 20, 14, 16) the evanescent wave of the guided field produced by the interference of said contra-propagative waves.
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Accused Products
Abstract
The invention relates to a spectrograph (11) comprising a waveguide (10) provided with accesses (10; 10b, 12), a means for injecting two guided contra-propagative waves by each accesses in such a way that a spatial interference is formed in the waveguide, means (19, 20, 14, 16) for detecting the energy of the evanescent wave of the guided field produced by the interference of said contra-propagative waves.
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Citations
8 Claims
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1. Spectrograph including
a waveguide (10) provided with two accesses (10a, 10b, 12), means for injecting two guided contra-propagative waves by each of said accesses in such a way that a spatial interference is formed in said waveguide, means for detecting (19, 20, 14, 16) the evanescent wave of the guided field produced by the interference of said contra-propagative waves.
Specification