Optical waveguides – With optical coupler – Input/output coupler
Reexamination Certificate
2007-05-15
2007-05-15
Font, Frank G. (Department: 2883)
Optical waveguides
With optical coupler
Input/output coupler
C385S004000, C385S010000, C385S015000, C385S016000, C385S017000, C385S020000, C385S031000, C385S032000, C385S046000, C385S050000
Reexamination Certificate
active
10625161
ABSTRACT:
An athermal arrayed-waveguide grating is disclosed and includes an input waveguide for inputting two or more optical signals from one exterior side, a grating array for separating the optical signals into different wavelengths of light, a first slab, formed with two layers and having different refractive indices from each other, for connecting the input waveguide with the grating array, a second slab for causing the different light wavelengths separated at the grating array to be imaged on an egress surface thereof, and an output waveguide array for outputting each light wavelength imaged on the egress surface of the second slab to the other exterior side in the form of a separated channel.
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Alcatel, Laid Open Application EP 01440418.0, Jul. 23, 2002.
Cho Joon-Yong
Jung Sun-Tae
Kim Myong-Won
Kwon Oh-Dal
Lee Bang-Weon
Cha & Reiter L.L.C.
Font Frank G.
Lepisto Ryan
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