Self-seeding fiber laser, method for driving self-seeding fiber laser, passive optical network system and device

摘要

This application provides a self-seeding fiber laser, including: an arrayed waveguide grating; a gain medium, coupled to one branch port of the arrayed waveguide grating; a Faraday rotator mirror, coupled to a common port of the arrayed waveguide grating, and configured to reflect a part of optical signals transmitted by the gain medium and form injection light returning to the gain medium; where the gain medium, the arrayed waveguide grating, and the Faraday rotator mirror form a laser resonator, and the arrayed waveguide grating is configured to perform wavelength selection in the laser resonator; and a compensation apparatus, coupled to the gain medium and configured to provide a compensation current for the gain medium selectively according to power of the injection light.

主权项

1. A self-seeding fiber laser, comprising:
an arrayed waveguide grating; a gain medium, coupled to one branch port of the arrayed waveguide grating; a Faraday rotator mirror, coupled to a common port of the arrayed waveguide grating, and configured to reflect a part of optical signals transmitted by the gain medium and form injection light returning to the gain medium, wherein the gain medium, the arrayed waveguide grating, and the Faraday rotator mirror form a laser resonator, and the arrayed waveguide grating is configured to perform wavelength selection in the laser resonator so that a transmitting wavelength of the gain medium is locked into a wavelength path corresponding to the branch port; and a compensation apparatus, coupled to the gain medium and configured to provide a compensation current for the gain medium selectively according to power of the injection light.