Coherent light generators – Particular resonant cavity – Specified output coupling device
Reexamination Certificate
2007-03-20
2007-03-20
Rodriguez, Armando (Department: 2828)
Coherent light generators
Particular resonant cavity
Specified output coupling device
C372S050110
Reexamination Certificate
active
10472012
ABSTRACT:
Our wafer scale processing techniques produce chip-laser-diodes with a diffraction grating (78) that redirects output light out the top (88) and/or bottom surfaces. Generally, a diffraction grating (78) and integrated lens-grating (78) are used herein to couple light from the chip to an output fiber (74), and the lens-grating (78) is spaced from the diffraction grating (76). Preferably the diffraction grating (76) and integrated lens grating (78) are also used to couple light from the output fiber (74) back to the active region of the chip. The integrated lens-grating (78) can be in a coupling block (82). The use of a coupling block (82) can eliminate “facet-type damage”. A coupling block (82) is generally used herein to couple light from the chip to an output fiber (74), and preferably to couple feedback reflected from the fiber (74) back to the chip.
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Bullington Jeff A.
Johnson Eric G.
Moharam M. Gamal
Stoltz Richard A.
Vaissie Laurent
Finneren Rory
Infinite Photonics, Inc.
Rodriguez Armando
Slater & Matsil L.L.P.
The Research Foundation of the University of Central Florida
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