Optical waveguides – With optical coupler – Input/output coupler
Patent
1998-03-16
2000-12-05
Healy, Brian
Optical waveguides
With optical coupler
Input/output coupler
385 14, 385 38, 385 39, 385 42, 385129, 385130, 385115, 385116, 372 43, 372 50, G02B 626
Patent
active
061577553
ABSTRACT:
In order to improve a laser system comprising a fiber bundle consisting of single mode fibers which form with a first end a fiber bundle end, at which a total radiation field, which can be imaged onto a target surface, is formed from laser radiation exiting from the first ends of the fibers, and which are coupled with a second end to a subsystem generating the laser radiation with at least one semiconductor laser, such that this also operates efficiently with semiconductor lasers or semiconductor laser amplifiers and can be realized in an inexpensive manner it is suggested that the subsystem comprise a plurality of semiconductor laser units operating parallel, that all the semiconductor laser units of the subsystem operate with the same wavelength in a phase-balanced manner relative to one another as a result of master laser radiation coupled into them and that individual laser radiation exiting from the individual semiconductor laser units of the respective subsystem be combined by means of a coupling device of the respective subsystem to form a coherent laser radiation field which can be coupled into one of the single mode fibers.
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D. Botez, et al., "Flat-Phasefront Fanout-Type Power Amplifier Employing Resonant-Optical-Waveguide Structures," Appl. Phys. Lett., 1993, vol. 63, No. 23, pp. 3113-3115.
Brauch Uwe
Giesen Adolf
Opower Hans
Deutsches Zentrum fuer Luft-und Raumfahrt e.V.
Healy Brian
Lipsitz Barry R.
Universitaet Stuttgart Institut fuer Strahlwerkzeuge
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