Semiconductor Laser Module Fiber Array Alignment via V-Groove

The patent introduces a V-groove structure as an intermediary element between the optical fiber array and the holder. The V-groove precisely positions the optical fibers through geometric constraint, acting as a mediator that transfers alignment precision from the holder to the optical fibers without relying on adhesive bonding. This resolves the contradiction by enabling easy manufacture with adhesives while maintaining high alignment precision through the V-groove geometric constraint.

The patent performs preliminary alignment of the optical fiber array using the V-groove structure before the laser welding process. The V-groove pre-positions the optical fibers with high precision, so that when laser welding is subsequently applied, the clearance and mating surface accuracy requirements are already satisfied. This preliminary positioning action eliminates the need for complex real-time adjustment mechanisms during welding, thereby maintaining reliability while reducing device complexity.

The V-groove structure provides self-aligning functionality through its geometric design. The V-shaped geometry automatically positions the optical fibers in the correct orientation and location without requiring external monitoring or adjustment mechanisms. This self-service alignment capability maintains high manufacturing precision while eliminating the need for complex light intensity monitoring procedures, thereby significantly improving productivity.