Laser device for laser mode manipulation

A laser device for laser mode manipulation, comprising:

• a laser cavity including a first cavity mirror that is highly reflective at a first wavelength, a second cavity mirror that is spaced apart from said first cavity mirror and that is partially reflective at the first wavelength, and a gain medium that is located between said first cavity mirror and said second cavity mirror, and that is configured to generate laser light at the first wavelength, wherein the laser light travels in an axial direction extending from said first cavity mirror, through said gain medium and to said second cavity mirror;
• an end-injection laser configured to emit an end-injection laser beam of a second wavelength toward said laser cavity in the axial direction;
• a side-pump source configured to provide pump light to said gain medium in a direction substantially transverse to the axial direction to cause said gain medium to generate an output laser beam of the first wavelength emitted from said second cavity mirror;
• and
• a laser-profile shaper disposed between said end-injection laser and said first cavity mirror, and configured to spatially re-distribute an intensity of the end-injection laser beam and to project an injection profile of the end-injection laser beam having the spatially-redistributed intensity through said first cavity mirror and onto said gain medium;
• wherein said laser cavity is configured to generate the output laser beam with an output profile mimicking the injection profile of the end-injection laser beam that is projected onto said gain medium.