Optical waveguides – With optical coupler – Input/output coupler
Reexamination Certificate
2007-01-09
2007-01-09
Font, Frank G. (Department: 2883)
Optical waveguides
With optical coupler
Input/output coupler
C385S027000, C385S050000
Reexamination Certificate
active
10799040
ABSTRACT:
A fiber to chip coupling connecting an optical fiber to an integrated circuit. A section of fiber is laid on top of the surface of the chip, where the end of the fiber has been cut at an angle to form an angled tip. The angled tip has a flat surface which reflects light down to a waveguide grating coupler disposed on the integrated circuit. Light is reflected off the reflective surface of the angled tip by total internal reflection. The waveguide grating coupler is designed to accept the slightly diverging light beam from the reflective surface of the angled tip of the fiber. Light can also propagate through the fiber to chip coupler in the opposite direction, up from the substrate through the waveguide grating and into an optical fiber after bouncing off the reflective surface of the angled tip.
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Gunn III Lawrence C.
Ji Zhen-Li
Pinguet Thierry J.
Rattier Maxime J.
Witzens Jeremy
El-Shammaa Mary
Fernandez & Associates
Font Frank G.
Luxtera Inc.
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