Fiber delivered laser induced white light system

An apparatus for remotely delivering white light comprising:

• a package case enclosing an electronic board member with a multi-pin connector;
• a laser module configured in a sub-package plugged to the electronic board member inside the package case, the sub-package comprising a support member, at least one gallium and nitrogen containing laser diode device mounted on the support member;
• the at least one gallium and nitrogen containing laser diode device being configured to emit a beam of electromagnetic radiation characterized by a first wavelength ranging from 395 nm to 490 nm;
• a collimating lens configured in the sub-package to collimate the beam of the electromagnetic radiation to an output port of the sub-package;
• a lid member sealed the package case with the multi-pin connector coupled with an electrical feedthrough;
• a fiber assembly comprising an optical fiber with a first end coupled to the output port to receive the electromagnetic radiation and deliver the electromagnetic radiation through an arbitrary length to exit a second end with a primary propagation direction, a beam diameter, and a divergence;
• a phosphor member disposed remotely in a light head member coupled with the second end of the optical fiber, the phosphor member having a surface configured to receive the electromagnetic radiation exiting the second end of the optical fiber and providing a wavelength conversion of at least a fraction of the electromagnetic radiation of the first wavelength to a phosphor emission of a second wavelength, wherein the second wavelength is longer than the first wavelength;
• and
• a mechanical fixture in the light head member configured to set a distance between the surface of the phosphor member and the second end of the optical fiber and set an angle of incidence between the primary propagation direction of the electromagnetic radiation exiting the second end and a direction parallel to the surface of the phosphor member to create an excitation spot of the electromagnetic radiation on the surface of the phosphor member with a diameter ranging from 25 μm to 5 mm;
• the excitation spot generating a white light emission characterized by a mixture of the electromagnetic radiation of the first wavelength and the phosphor emission of the second wavelength.

A fiber-delivered laser-induced white light source for auto headlight comprising:

• a laser module packaged in a metal case plugged into a circuit board, the metal case enclosing a support member, at least one laser diode device configured to mount on the support member and to emit a laser beam characterized by a wavelength ranging from 395 nm to 490 nm, and a collimating lens configured to guide the laser beam to an output port;
• a focus lens coupled to the output port from outside the metal case to receive and confine the laser beam;
• a fiber assembly embedding an optical fiber having a first end section coupled to the output port with alignment to receive the laser beam from the focus lens and deliver the laser beam through the optical fiber to a second end section;
• and
• a light head member disposed remotely in an auto headlight module holding the second end section of the optical fiber near a phosphor material, the light head member being configured to direct the laser beam exiting the second end section of the optical fiber at the phosphor material at an angle of incidence in a range from 5 degrees to 90 degrees between the laser beam and a direction parallel to a surface of the phosphor material to create a spot ranging from 50 μm to 5 mm, the laser beam in the spot inducing a phosphor-excited emission which is partially mixed with the laser beam to produce a white light emission as an illumination and projection light source of the auto headlight module.