Optical waveguides – Optical fiber waveguide with cladding
Reexamination Certificate
2005-09-06
2005-09-06
Ullah, Akm Enayet (Department: 2874)
Optical waveguides
Optical fiber waveguide with cladding
C385S142000, C065S392000
Reexamination Certificate
active
06941052
ABSTRACT:
A refractive index grating comprising an optical fiber having at least one radiation-sensitized portion, in a longitudinal section of the optical fiber, containing a periodic variation of refractive index. The refractive index grating has an initial magnitude that changes no more than two percent after conditioning at a temperature of 300° C. for a time of ten minutes.
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Kalweit Harvey W.
Viswanathan Nirmal K.
3M Innovative Properties Company
Rahll Jerry T
Rosenblatt Gregg H.
Ullah Akm Enayet
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