Coherent light generators – Particular active media – Semiconductor
Reexamination Certificate
2007-08-21
2007-08-21
Nguyen, Dung (Michael) T. (Department: 2828)
Coherent light generators
Particular active media
Semiconductor
C372S026000, C372S030000
Reexamination Certificate
active
10774727
ABSTRACT:
A device for emission of laser radiation includes at least one semiconductor laser having a resonator and a pumped active zone disposed within the resonator. The zone is subdivided into at least two spatially separated active zones by free-radiation regions without lateral wave guidance. Preferably, the laser is at least two semiconductor lasers disposed in series, a row, or a line, each having an antireflection coating on at least one side. The lasers have outer mirror elements at an end of the lasers disposed in series and the outer mirror elements form the resonator. A laser configuration includes two opposite semiconductor lasers from which a fundamental mode is in each case imaged into the active zone of the opposite semiconductor laser. The laser configuration has an emerging laser beam with little divergence.
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Behringer Martin
Eberhard Franz
Luft Johann
Greenberg Laurence A.
Locher Ralph E.
Nguyen Dung (Michael) T.
Osram Opto Semiconductors GmbH
Stemer Werner H.
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