Laser light source device

Details Laser light source device Laser light source device

2011-01-04

2011-01-04

Nguyen, Dung T (Department: 2828)

Coherent light generators

Optical fiber laser

C372S026000, C372S027000, C372S050120

Reexamination Certificate

active

07864820

ABSTRACT:
A laser light source device is disclosed, which reduces the coherence of the laser light and inexpensively achieves a visually recognizable level of speckle reduction without use of a mechanical driving means. The laser light source device includes: laser modules, each including a laser light source, an intensity modulation unit to apply intensity modulation to laser light emitted from the laser light source, and a first waveguide to receive the intensity-modulated laser light from the laser light source and output the laser light from an output end thereof; and a second waveguide including an input end optically connected to a light outputting area of the first waveguides to receive the laser light outputted from the first waveguides, the first waveguides being closely bundled in the vicinity of output ends thereof, wherein a core of the second waveguide at the input end is larger than the light outputting area.

REFERENCES:
patent: 7113657 (2006-09-01), Park
patent: 2007/0147750 (2007-06-01), Teramura et al.
patent: 2009/0067843 (2009-03-01), Way et al.
patent: 6-167640 (1994-06-01), None
patent: 2003-156698 (2003-05-01), None

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