Optical waveguides – With optical coupler – Particular coupling structure
Reexamination Certificate
2006-08-04
2008-09-02
Font, Frank G (Department: 2883)
Optical waveguides
With optical coupler
Particular coupling structure
C385S015000, C385S031000, C385S147000, C123S14300R, C123S14650R, C372S009000, C372S010000, C372S069000, C372S070000, C372S077000
Reexamination Certificate
active
07421166
ABSTRACT:
A laser spark distribution and ignition system that reduces the high power optical requirements for use in a laser ignition and distribution system allowing for the use of optical fibers for delivering the low peak energy pumping pulses to a laser amplifier or laser oscillator. An optical distributor distributes and delivers optical pumping energy from an optical pumping source to multiple combustion chambers incorporating laser oscillators or laser amplifiers for inducing a laser spark within a combustion chamber. The optical distributor preferably includes a single rotating mirror or lens which deflects the optical pumping energy from the axis of rotation and into a plurality of distinct optical fibers each connected to a respective laser media or amplifier coupled to an associated combustion chamber. The laser spark generators preferably produce a high peak power laser spark, from a single low power pulse. The laser spark distribution and ignition system has application in natural gas fueled reciprocating engines, turbine combustors, explosives and laser induced breakdown spectroscopy diagnostic sensors.
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McIntyre Dustin L.
Woodruff Steven
Dobbs Michael J.
Font Frank G
Gottlieb Paul A.
Lepisto Ryan
Park Daniel D.
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