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US 2006/0222295 A1Published application
Dispersion compensator
AssigneeLucent Technologies Inc.
InventorChristopher Doerr
Life of this patent
Estimating the term…
Abstract
Dispersion compensator apparatus comprising 1XM, MXN and NXN couplers, where the coupling ratios of the MXN and NXN couplers are selected such that the dispersion compensator provides a desired amount of dispersion compensation.
Claims20
A dispersion compensator comprising:
- a first 1XM coupler;
- a first MXN coupler coupled to the first 1XM coupler;
- a second MXN coupler coupled to the first MXN coupler;
- and
- a second 1XM coupler coupled to the second MXN coupler;
- wherein, M and N are greater than 2, and wherein the coupling ratios of the first MXN coupler, and the second MXN coupler are selected such that the dispersion compensator provides a desired amount of dispersion compensation.
3 more elements
A dispersion compensator comprising:
- a first 1XM coupler;
- a first MXN coupler coupled to the first 1XM coupler;
- a second MXN coupler coupled to the first MXN coupler;
- and
- a second 1XM coupler coupled to the second MXN coupler;
- wherein, M and N are greater than 2, and the coupling ratios of the first MXN coupler, and the second MXN coupler are selected such that the dispersion compensator provides a desired amount of dispersion compensation, and
- wherein, the first 1XM coupler and the first MXN coupler, and the second MXN coupler and the second 1XM coupler, are respectively coupled using an array of M waveguides having an adjacent waveguide path-length difference of about ΔL, and wherein, the first MXN coupler and the second MXN coupler are coupled using an array of N waveguides having an adjacent waveguide path-length difference of about 2ΔL.
4 more elements
A dispersion compensator comprising:
- a first 1XM coupler;
- a first MXN coupler coupled to the first 1XM coupler;
- at least one NXN coupler(s) coupled in series to the first MXN coupler;
- a second MXN coupler coupled to the at least one NXN coupler(s);
- and
- a second 1XM coupler coupled to the second MXN coupler;
- wherein the first 1XM coupler and the first MXN coupler, and the second MXN coupler and the second 1XM coupler, are respectively coupled using an array of M waveguides having an adjacent waveguide path-length difference of about ΔL;
- and
- wherein the first and second MXN couplers are respectively coupled to the at least one NXN coupler(s) using an array of N waveguides having an adjacent waveguide path-length difference of about 2ΔL;
- and
- wherein the at least one NXN coupler(s) are coupled using an array of N waveguides having an adjacent waveguide path-length difference of about 2ΔL;
- and
- wherein the coupling ratios of the first MXN coupler, the at least one NXN coupler(s), and the second MXN coupler are selected such that the dispersion compensator provides a desired amount of dispersion compensation.
10 more elements
Dependencies are inferred from the claim text.