Dynamic gain and channel equalizers
AssigneeLightConnect, Inc.
InventorsEric K. Gustafson, Asif A. Godil
Life of this patent
Estimating the term…
Abstract
A beam refraction apparatus includes an input fiber carrying an input beam. A wavelength dispersive element is coupled to the input fiber. The wavelength dispersive element spreads the input beam in at least one dimension as a function of wavelength and generates a dispersed beam. A controllable grating reflects the dispersed beam to the wavelength dispersive element and generates a recombined beam. The controllable grating provides a controllable reflectivity as a function of wavelength. An output fiber receives the recombined beam. A collimating optical member is coupled to the input and output fibers. The collimating optical member passes the input beam and the recombined beams in parallel and opposite directions.
Claims18
A beam refraction apparatus, comprising:
- an input fiber that carries an input beam;
- a wavelength dispersive element coupled to the input fiber, the wavelength dispersive element spreading the input beam in at least one dimension as a function of wavelength and generating a dispersed beam;
- a controllable grating reflecting the dispersed beam to the wavelength dispersive element and generating a recombined beam, the controllable grating providing a controllable reflectivity as a function of wavelength;
- an output fiber that receives the recombined beam;
- and
- a collimating optical member coupled to the input and output fibers that passes the input beam and the recombined beams in parallel and opposite directions.
Dependencies are inferred from the claim text.