Reflective light-emitting device for a WDM PON optical access network, the device including a light source with an optical gain medium

摘要

A reflective light-emitting device is provided for a WDM PON optical access network. The device includes a light source with an optical gain medium. The light-emitting device includes a light source with an optical gain medium, of wavelength that is self-seeding during a go-and-return passage of light between the optical gain medium and an optical reflective component defining the laser cavity. The optical reflective component is made up of an optical amplifier associated reflective optical connection to a polarizing device so that the polarization axis of the reflected light is the same as the polarization axis of the emitted light.

主权项

1. A light-emitting device for a wavelength division multiplex (WDM) passive optical network (PON) optical access network, the device comprising:
a light source with an optical gain medium, of wavelength that is self-seeding during a go-and-return pass of light between the optical gain medium and an optical reflective component defining a laser cavity; wherein the optical reflective component is made up of an optical amplifier associated in an optical reflective connection with a polarizing device determined so that the polarization axis of the light reflected by the optical reflective component is the same as the polarization axis of the light emitted by the light source, wherein: the optical reflective connection comprises an optical loop between the optical amplifier and the polarizing device, the optical amplifier has determined polarization, and the polarizing device comprises:
a polarization separator between the light source and the optical loop; anda 180° polarization rotator that co-operates in the optical loop with the polarization separator and the polarized optical amplifier so that the reflected light has the same polarization axis as the emitted light.