LED pumping multi-wavelength waveguide laser and multi-wavelength waveguide laser

Abstract

The invention discloses an LED pumping multi-wavelength waveguide laser and a multi-wavelength waveguide laser. The LED pumping multi-wavelength waveguide laser comprises an optical substrate, an LED pumping light source, a bent waveguide, a first antireflection film, a first high-reflective film, a second high-reflective film, a third high-reflective film and film filters wherein one end face of the optical substrate is opposite to the output end of the LED pump light source; the bent waveguides are buried in the optical substrate at intervals, and the two ends of each bent waveguide extend to the two sides of the optical substrate respectively; the first antireflection film is arranged on the end face, opposite to the output end of the LED pump light source, of the optical base body; the first high-reflective film is arranged on the end face, away from the first antireflection film, of the optical substrate; the plurality of second high-reflective films and the plurality of third high-reflective films are in one-to-one correspondence with the bent waveguides and are opposite to the two ends of the bent waveguides respectively; and the plurality of filter films are in one-to-one correspondence with the plurality of bent waveguides and are opposite to the output ends of the bent waveguides. The lasers are small in size, reliable and flexible to process, low in cost, capable of realizing multi-wavelength laser output and easy to integrate with other photoelectric equipment.

Description

technical field [0001] The invention relates to the technical field of waveguide laser structures, in particular to LED pumped multi-wavelength waveguide lasers and multi-wavelength waveguide lasers. Background technique [0002] In recent years, in the fields of optical communication, optoelectronic integration, etc., the development of waveguide lasers doped with rare earth ions has attracted the attention of researchers. The optical waveguide doped with rare earth ions is used as a gain medium, and the LD coupling fiber is used for one-dimensional axial pumping. Then use distributed feedback (DFB) or distributed Bragg reflector (DBR) to build a resonant cavity to realize a waveguide laser. Although the preparation of such a structure makes the laser have great advantages in terms of conversion efficiency and laser oscillation performance, the overall equipment is large in size and high in production cost, and the end-fired fiber-coupled one-dimensional axial pump of the l...

AI Technical Summary

Problems solved by technology

In addition, existing waveguide lasers mostly use external mirrors or Bragg gratings as resonators, which have problems such as complex equipment and high manufacturing costs.

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