Optical waveguides – With optical coupler – Particular coupling structure
Reexamination Certificate
2006-08-29
2006-08-29
Kim, Ellen E. (Department: 2874)
Optical waveguides
With optical coupler
Particular coupling structure
C385S039000
Reexamination Certificate
active
07099539
ABSTRACT:
An optical system and associated method are provided. Included is a first branch capable of allowing light to pass therethrough in a forward direction and a reverse direction. The first branch includes a first medium with a first refractive index (n1), and a first end and a second end. Also included is a second branch capable of allowing light to pass therethrough in the forward direction. The second branch includes a second medium with a second refractive index (n2, with n2<n1), and a first end and a second end. The second end of the second branch is further coupled to the first branch to form an angle (θ2). In use, θ1≦sin−1(n2
1) in order to prevent the light passing through the first branch in the reverse direction from passing into the second branch, where θ1is the incident angle of the light passing in the reverse direction from the first branch to the second branch.
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Au Chi
Chu Tzu-Yih
Lee Edward W.
Ma Abraham C.
Yin Hao
Bever Patrick T.
Bever Hoffman & Harms LLP
Kim Ellen E.
Super Talent Electronics Inc.
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