Coherent light generators – Particular resonant cavity – Distributed feedback
Patent
1988-12-19
1990-09-18
Davie, James W.
Coherent light generators
Particular resonant cavity
Distributed feedback
372 26, 372 50, H01S 310
Patent
active
049583573
ABSTRACT:
Disclosed is a grating-coupled surface emitting laser capable of obtaining a beam with high directivity, structured by forming a light output window in a limited regions with high intensity radiations along the propagation direction. Its intensity distribution of radiation mode along the axis can be controlled by injecting a current independently into the multiply-divided electrodes or by pumping optically these electrodes independently. The control is, in principle, achieved by an equivalent change of the phase-shift of the gratings.
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Davie James W.
Kabushiki Kaisha Toshiba
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