Coherent fiber diffractive optical element beam combiner

Details Coherent fiber diffractive optical element beam combiner Coherent fiber diffractive optical element beam combiner

2006-02-24

2008-10-21

Bolda, Eric (Department: 3663)

Optical: systems and elements

Optical amplifier

Optical fiber

C359S566000, C356S477000, C372S029016

Reexamination Certificate

active

07440174

ABSTRACT:
An optical beam combiner and a related method for its operation, in which multiple coherent input beams are directed onto a diffractive optical element (DOE) along directions corresponding to diffraction orders of the DOE, such that the DOE generates a single output beam in a direction corresponding to a desired diffraction order, and suppresses outputs in directions corresponding to unwanted diffraction orders. The phases of the input beams are actively controlled to ensure and maintain the condition that only a single diffraction mode is present in the output of the DOE.

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