Optical waveguides – With optical coupler – Input/output coupler
Patent
1993-01-21
1995-03-21
Bovernick, Rodney B.
Optical waveguides
With optical coupler
Input/output coupler
385 10, G02B 634
Patent
active
054004225
ABSTRACT:
A process for making an optical reflection grating in a glass fiber includes exposing an unjacketed optic fiber to a single writing pulse from a pair of interfering light beams that form an interference pattern in the fiber. A novel optical fiber has at least one optical grating with a preselected Bragg spacing in at least one region of the fiber, with a periodic modulation in its index of refraction, with high thermal stability and narrow linewidth. A process for making an array of optical reflection gratings in a glass fiber includes exposing a fiber to a plurality of writing pulse from a pair of interfering light beams that form an interference pattern in the fiber, where these pulses are applied sequentially as the fiber is drawn from a draw furnace. A novel optical fiber has a plurality of unspliced gratings with high thermal stability and narrow linewidth.
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Askins et al., "Fiber Bragg Reflectors Prepared by a Single Excimer Pulse", ptics Letters 17(11), pp. 833-835 (Jun. 1, 1992).
Askins Charles G.
Friebele Edward J.
Bovernick Rodney B.
Karasek John J.
McDonnell Thomas E.
The United States of America as represented by the Secretary of
Wise Robert E.
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