Laser light combining apparatus and light source

A light source, comprising a laser device and a laser light combining apparatus,

• wherein the laser light combining apparatus comprises an optical splitting element and a wavelength conversion element;
• wherein the optical splitting element is configured to reflect a portion of laser incident at a side of the optical splitting element away from the wavelength conversion element to form a first wavelength beam, and transmit an unreflected portion of the laser to the wavelength conversion element;
• wherein the wavelength conversion element is configured to perform wavelength conversion on the unreflected portion of the laser to form a second wavelength beam, and reflect the second wavelength beam to the optical splitting element, so that the second wavelength beam and the first wavelength beam form a combined light;
• wherein a divergence angle of the first wavelength beam and a divergence angle of the second wavelength beam are both greater than a divergence angle of the laser;
• and
• wherein the laser device is configured to emit laser, and the laser light combining apparatus is configured to receive the laser, separate and convert the laser and then combine to form a combined light of the first wavelength beam and the second wavelength beam.