Contra-propagative wave spectograph

Details Contra-propagative wave spectograph Contra-propagative wave spectograph

2011-08-09

2011-08-09

Connolly, Patrick J (Department: 2877)

Optics: measuring and testing

By light interference

Using fiber or waveguide interferometer

C356S451000

Reexamination Certificate

active

07995211

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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