Coherent light generators – Particular beam control device – Q-switch
Reexamination Certificate
2011-01-25
2011-01-25
Harvey, Minsun (Department: 2828)
Coherent light generators
Particular beam control device
Q-switch
C372S006000, C372S025000, C372S029010, C372S029011, C372S029012, C372S071000, C372S094000
Reexamination Certificate
active
07876794
ABSTRACT:
The present invention discloses a laser light source for implementing pulsed oscillation of laser light, which has a laser cavity in which a laser medium for generating emitted light with supply of excitation energy is placed on a resonance path; an excitation device for continuously supplying excitation energy to the laser medium; a monitor part for monitoring a power of light extracted at a middle point of the path of the cavity from the laser medium in accordance with the supply of the excitation energy by the excitation device; a Q-switch for modulating a cavity loss of the laser cavity; and a control part for performing such control as to stabilize a peak power or an energy of laser light pulses outputted in a state in which the cavity loss of the laser cavity is set at a second predetermined loss for oscillation of high-power pulses, based on the power of the emitted light monitored by the monitor part in a state in which the cavity loss of the laser cavity is set at a first predetermined loss for non-oscillation of high-power pulses.
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Japanese Notification of Reasons for Rejection, w/ English translation thereof, issued in Japanese Patent Application No. JP 2005-284281.
Harvey Minsun
McDermott Will & Emery LLP
Sumitomo Electric Industries Ltd.
Zhang Yuanda
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