Optical waveguides – With optical coupler – Input/output coupler
Reexamination Certificate
2008-05-20
2008-05-20
Pak, Sung (Department: 2874)
Optical waveguides
With optical coupler
Input/output coupler
Reexamination Certificate
active
10976524
ABSTRACT:
A multimode long period fiber Bragg grating (LPFBG) for a predetermined wavelength band. The LPFBG formed of a non-photosensitive material having an initial index of refraction. The multimode optical fiber core includes a substantially cylindrical surface, a longitudinal core axis, a core radius, and a number of index-altered portions having an altered index of refraction different from the initial cladding index of refraction. Each of the index-altered multimode optical fiber core has a first transmission surface and second transmission surface that is substantially parallel to the first transmission surface. Also, these index-altered portions are arranged within the non-photosensitive material of the multimode optical fiber core such that the first transmission surface of one portion of the plurality of index-altered portions is substantially parallel to the second transmission surface of a neighboring portion to form a long period Bragg grating structure.
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Jia Jimmy Yi-Jie
Li Ming
Liu Xinbing
Ohara Tetsuo
Singh Rajminder
Matsushita Electric Industrial Co. Ltd
Pak Sung
RatnerPrestia
Stahl Mike
LandOfFree
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