Laser element, method of producing the laser element, and a laser module employing the laser element

A laser module comprising:

• an optical fiber;
• a laser element which comprises:
• a heat sink which is comprised of one of copper and copper alloy, and which comprises a fixation surface having a predetermined shape;
• and
• a nitride-based semiconductor laser bar which comprises a top surface and at least three light-emission points formed on a substrate, wherein the nitride-based semiconductor laser bar emits laser beams from the at least three light-emission points, and is bonded to said heat sink with a brazing material comprising gold and one of tin and silicon as main components, by pressing the whole top surface of the nitride-based semiconductor laser bar toward said fixation surface with a tool having a shape corresponding to the predetermined shape of the fixation surfaces, during a brazing operation;
• and
• an optical condensing system which optically multiplexes said laser beams, and directs the optically multiplexed laser beams into said optical fiber.