Diode laser arrangement has dispersive optical device that diffracts laser beams collimated by collimator lens, and focusing device focuses laser beam on entry-side end of fiber

摘要

The arrangement has several diode laser sources for creating several laser beams (3a-3n) with different wavelengths. Several optical fibers are provided to guide respective laser beams. The exit-side ends of optical fibers are arranged parallel to each other at specific distances (d1-dN). A collimator lens (6) collimates the laser beams. A dispersive optical device (7) diffracts collimated laser beams. The focusing device focuses laser beam on entry-side end of fiber.