Patent ID: 11884202
Assignee: KYOCERA SLD LASER, INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC B  F  G  H | IPC B  G  H

Claim 0:
1. A laser-based fiber-coupled white light system comprising:
a package having a transparent lid member for emitting a white light emission, the package comprising:
a laser device comprising a gallium and nitrogen containing material and configured as an excitation source, the laser device comprising an output facet configured to output a beam of laser electromagnetic radiation with a first wavelength ranging from 385 nm to 495 nm;
a phosphor member configured as a wavelength converter and an emitter and disposed to allow the beam of the laser electromagnetic radiation being directly coupled to a primary surface of the phosphor member;
an oblique angle of incidence configured between the beam of the laser electromagnetic radiation emitted from the laser device and the primary surface of the phosphor member, the beam of the laser electromagnetic radiation forming a spot greater than 5 μm on the primary surface of the phosphor member, the phosphor member configured to convert at least a fraction of the beam of the laser electromagnetic radiation with the first wavelength to a phosphor emission with a second wavelength that is longer than the first wavelength;
a reflection mode characterizing the phosphor member with the white light emission being generated from at least an interaction between a portion of the beam of the laser electromagnetic radiation with the phosphor emission emitted from the primary surface, the white light emission comprising of a mixture of wavelengths characterized by at least the second wavelength from the phosphor member; and
a support member configured to support the laser device and/or the phosphor member;

an optical member mounted on the transparent lid member of the package and configured to receive the white light emission passing through the transparent lid member and focus the white light emission to provide a focused white light emission;
a fiber having a diameter of 1 mm or less, the fiber having an input end for receiving the focused white light emission from the optical member with at least 20% efficiency to deliver or distribute the white light emission; and
a cover extending around external edges of the package and around a periphery of the optical member, wherein a first end portion of the fiber extends through a first aperture of the cover and the package is arranged in a second aperture of the cover so that a bottom portion of the package is exposed outside the cover.