Alignment and imaging system for writing Bragg gratings

Details Alignment and imaging system for writing Bragg gratings Alignment and imaging system for writing Bragg gratings

2005-09-20

2005-09-20

Healy, Brian M. (Department: 2874)

Optical waveguides

With optical coupler

Input/output coupler

C385S052000, C385S136000, C385S137000, C438S032000

Reexamination Certificate

active

06947640

ABSTRACT:
A method is provided for precise and repeatable location of one or more Bragg gratings in a large diameter optical waveguide having a cross-section of at least about 0.3 millimeters, featuring the steps of: defining a reference location on a fixed placement datum arranged on a waveguide fixture device; defining one or more desired locations on a large diameter optical waveguide arranged on the waveguide fixture location in relation to the reference location; and writing one or more Bragg gratings in the large diameter optical waveguide at the one or more desired locations based on the reference location on the fixed placement datum. The step of defining the reference location may include marking the fixed placement datum with a scribe mark thereon; and securing the fixed placement datum in a groove in a waveguide fixture device.

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