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1. (WO2018119521) STRUCTURE D'INSERTION EXTRACTION
Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

CLAIMS

1. An optical system comprising a first drop-side optical circuit comprising:

a multicast-and-select (MCS) switch having a plurality of input ports and a plurality of output ports;

a plurality of selective devices, each for blocking some of wavelengths of light passing therethrough and for passing at least one other wavelength therethrough so as to provide output to an output port of said selective device, wherein each of the plurality of selective devices has an input port optically coupled to an output port of the MCS switch; and,

an optical amplifying array comprising a plurality of optical amplifiers, each having an input port optically coupled to one of the selective devices for receiving an optical signal to be amplified, wherein each of the plurality of optical amplifiers comprises one or more rare earth doped optical fibers for amplifying an optical signal propagating therethrough and has an output port for providing an amplified optical signal;

wherein the optical amplifying array comprises one or more laser pumps for providing pump light sufficient to fully saturate all of the rare earth doped optical fibers in the optical amplifying array;

wherein a number of the one or more laser pumps is less than a number of the plurality of optica] amplifiers; and,

wherein each of at least some of the optical amplifiers has a pump light port for receiving at least a portion of the pump light from the one or more laser pumps or from another of the optical amplifiers.

2. The optical system defined in claim 1 , wherein the plurality of selective devices comprise wave blockers.

3. The optical system defined in claim 1, wherein the plurality of selective devices comprise tunable optical filters.

4. The optical system defined in any of claims I to 3, wherein the first drop-side optical circuit comprises an input amplifier optically coupled to an input port of the MCS switch, wherein the input amplifier comprises a gain flattening filter (GFF).

5. The optical system defined in any of claims 1 to 3, wherein the first drop-side optical circuit comprises a first power-splitting circuit comprising one or more power splitters and one or more amplifiers, wherein the first power-splitting circuit has an input port and output ports, and wherein one or more of the output ports of the first power-splitting circuit are optically coupled to one or more of the plurality of input ports of the MCS switch.

6. The optical system defined in claim 5, wherein the input port of the first power-splitting circuit is an input port of one of the one or more amplifiers, and wherein an output port of said amplifier is optically coupled to the input port of one of the power splitters.

7. The optical system defined in claim 5, wherein the input port of the first power-splitting circuit is an input port of one of the power splitters, and wherein each of output ports of said power splitter is coupled to an input port of one of the one or more amplifiers.

8. The optical system defined in claim7, wherein another of the power splitters has an input port coupled to an output port of the one of the one or more amplifiers.

9. The optical system defined in any of claims 5 to 8, wherein each of the one or more amplifiers comprises a gain flattening filter.

10. The optical system defined in in any of claims 5 to 8, wherein each of the one or more amplifiers comprises one or more of rare earth doped optical fibers, configured for balancing gain along each of drop optical paths in the first drop-side optical circuit.

1 1. The optical system defined in any of claims 5 to 10, comprising a second drop-side optical circuit,

wherein the second drop-side optical circuit comprises:

a multicast-and-select (MCS) switch having a plurality of input ports and a plurality of output ports;

a plurality of selective devices, each for blocking some of wavelengths of light passing therethrough and passing at least one other wavelength therethrough so as to provide output to an output port of said selective device, wherein each of the plurality of selective devices has an input port optically coupled to an output port of the MCS switch; and,

an optical amplifying array comprising a plurality of optical amplifiers, each having an input port optically coupled to one of the selective devices for receiving an optical signal to be amplified, wherein each of the plurality of optical amplifiers comprises one or more rare earth doped optical fibers for amplifying an optical signal propagating therethrough and has an output port for providing an amplified optical signal;

wherein the optical amplifying array of the second drop-side optical circuit comprises one or more laser pumps for providing pump light sufficient to fully saturate all of the rare earth doped optical fibers in said optical amplifying array;

wherein a number of the one or more laser pumps is less than a number of the plurality of optical amplifiers in said optical amplifying array;

wherein each of at least some of the optical amplifiers of said optical amplifying array has a pump light port for receiving at least a portion of said pump light from the one or more laser pumps of said optical amplifying array or from another of the plurality of optical amplifiers of said optical amplifying array; and,

wherein one or more of the plurality of input ports of the MCS of the second drop-side optical circuit are coupled to one or more of the output ports of the power -splitting circuit.

12. The optical system defined in any of claims 5 to 10, comprising a second power splitting circuit comprising one or more power splitters and one or more amplifiers, wherein the second power-splitting circuit has an input port and output ports,

wherein one or more of the plurality of input ports of the MCS of the first drop-side optical circuit are coupled to one or more of the output ports of the second power -splitting circuit, and wherein one or more of the plurality of input ports of the MCS of the second drop-side optical circuit are coupled to one or more of the output ports of the second power-splitting circuit.

13. The optical system defined in any of claims 1 to 12, comprising an add side optical circuit, wherein the add side optical circuit comprises: an add-side MCS switch and an amplifier coupled to an output port of the add-side MCS switch.

14. The optical system defined in any of claims 1 to 12, comprising an add side optical circuit, wherein the add side optical circuit comprises an add-side optical amplifying array comprising a plurality of optical amplifiers, each having an input port for receiving an optical signal to be amplified;

wherein each of the plurality of optical amplifiers comprises one or more rare earth doped optical fibers for amplifying an optical signal propagating therethrough and has an output port for providing an amplified optical signal,

wherein the add-side optical amplifying array comprises one or more laser pumps for providing pump light to all of the rare earth doped optical fibers in the add-side optical amplifying array,

wherein a number of the one or more laser pumps in the add-side optical amplifying array is less than a number of the plurality of optical amplifiers in the add-side optical amplifying array, and

wherein each of at least some of the optical amplifiers of the add-side optical amplifying array has a pump light port for receiving at least a portion of said pump light from the one or more laser pumps of the add-side optical amplifying array or from another of the plurality of optical amplifiers of the add-side optical amplifying array;

wherein the add side optical circuit further comprises:

a plurality of add-side selective devices, each for blocking some of wavelengths of light passing therethrough and for passing at least one other wavelength therethrough so as to provide output to an output port of said selective device, wherein each of the plurality of add-side selective devices has an input port optically coupled to an output port of one of the plurality of amplifiers in the add-side optical amplifying array; and.

an add-side multicast-and-se!ect switch having a plurality of input ports and a plurality of output ports, wherein each of the plurality of input ports is optically coupled to an output port of one of the plurality of add-side selective devices.

15. The optical system defined in claim 14, wherein the plurality of add-side selective devices in the add side optical circuit comprise wave blockers.

16. The optical system defined in claim 14, wherein the plurality of add-side selective devices in the add side optical circuit comprise tunable optical filters.

17. The optical system defined in any of claims I to 16, wherein each of the plurality of optical amplifiers in the optical amplifying array in the first or second drop-side optical circuit comprises a gain flattening filter.

18. The optical system defined in any of claims 1 to 17, wherein the one or more rare earth doped optical fibers in the first or second drop-side optical circuit are erbium doped fibers.

19. The optical system defined in any of claims 1 to 18, wherein for each of the plurality of selective devices in the first or second drop-side optical circuit, the input port is a single input port, and the output port is a single output port.

20. The optical system defined in any of claims 1 to 19, wherein each of the plurality of the selective devices in the first or second drop-side optical circuit is a reconfigurable device.

21. The optical system defined in any of claims 4 and 13 to 20, wherein the GFF is configured for distributed gain balancing along each optical path in the first drop-side optical circuit and is a single GFF in the first drop-side optical circuit.

22. The optical system defined in any of claims 1 to 21, wherein each of the plurality of optical amplifiers in first drop-side optical circuit has a pump light port for receiving at least a portion of the pump light from the one or more laser pumps or from another of the plurality of optical amplifiers.

23. An optical system comprising a first drop-side optical circuit comprising:

a multicast-and-select (MCS) switch having a plurality of input ports and a plurality of output ports;

and, a plurality of selective devices, each for blocking some of wavelengths of light passing therethrough and for passing at least one other wavelength therethrough so as to provide output to an output port of said selective device, wherein each of the plurality of selective devices has an input port optically coupled to one of the plurality of output ports of the MCS switch.

24. The optical system defined in claim 23, wherein the plurality of selective devices comprise wave blockers.

25. The optical system defined in claim 23, wherein the plurality of selective devices comprise tunable optical filters.

26. The optical system defined in claim 23 to 25, wherein for each of the plurality of selective devices the input port is a single input port, and the output port is a single output port.

27. The optical system defined in claim 23 to 26, wherein each of the plurality of the selective devices is a reconfigurable device.

28. The optical system defined in any of claims 23 to 27, wherein the first drop-side optical circuit comprises a plurality of output amplifiers, each having an input port optically coupled to one of the selective devices for receiving an optical signal to be amplified, wherein each of the plurality of output amplifiers comprises one or more rare earth doped optical fibers for amplifying an optical signal propagating therethrough and has an output port for providing an amplified optical signal.

29. The optical system defined in claim 28, wherein each of the plurality of output amplifiers comprises a gain flattening filter.

30. The optical system defined in any of claims 23 to 29, wherein the first drop-side optical circuit comprises an input amplifier optically coupled to an input port of the MCS switch.

31. The optical system defined in claim 30, wherein the input amplifier comprises a gain flattening filter.

32. The optical system defined in claim 27, wherein the GFF is configured for balancing gain along each of drop optical paths in the first drop-side optical circuit, and wherein the GFF is a single GFF in the first drop-side optical circuit.

33. The optical system defined in any of claims 23 to 29, wherein the first drop-side optical circuit comprises a first power-splitting circuit comprising one or more power splitters and one or more amplifiers, wherein the first power-splitting circuit has an input port and output ports, and wherein one or more of the output ports of the first power-splitting circuit are optically coupled to one or more of the plurality of input ports of the MCS switch.

34. The optical system defined in claim 32, wherein the input port of the first power-splitting circuit is an input port of one of the one or more amplifiers, and wherein an output port of said amplifier is optically coupled to the input port of one of the power splitters.

35. The optical system defined in claim 32, wherein the input port of the first power-splitting circuit is an input port of one of the power splitters, and wherein each of output ports of said power splitter is coupled to an input port of one of the one or more amplifiers.

36. The optical system defined in claim 35, wherein another of the one or more power splitters has an input port coupled to an output port of the one of the one or more amplifiers.

37. The optical system defined in in any of claims 33 to 36, wherein each of the one or more amplifiers comprises one or more of rare earth doped optical fibers.

38. The optical system defined in claim 37, wherein each of the one or more amplifiers comprises a gain flattening filter.

39. The optical system defined in in any of claims 33 to 37, wherein the one or more amplifiers are configured for distributed gain balancing along each optical path in the first drop-side optical circuit.

40. The optical system defined in any of claims 23 to 39, comprising a second drop-side optical circuit, wherein the second drop-side optical circuit comprises:

a multicast-and-select (MCS) switch having a plurality of input ports and a plurality of output ports;

a plurality of selective devices, each for blocking some of wavelengths of light passing therethrough and passing at least one other wavelength therethrough so as to provide output to an output port of said selective device, wherein each of the plurality of selective devices has an input port optically coupled to one of the plurality of output ports of the MCS switch; and,

wherein one or more of the input ports of the MCS of the second drop-side optical circuit are coupled to one or more of the output ports of the power -splitting circuit.

41. The optical system defined in any of claims 23 to 40. comprising a second power splitting circuit comprising one or more power splitters and one or more amplifiers, wherein the second power-splitting circuit has an input port and output ports,

wherein one or more of the plurality of input ports of the MCS of the first drop-side optical circuit are coupled to one or more of the output ports of the second power -splitting circuit, and wherein one or more of the plurality of input ports of the MCS of the second drop-side optical circuit are coupled to one or more of the output ports of the second power-splitting circuit.

42. The optical system defined in any of claims 23 to 40, comprising an add side optical circuit, wherein the add side optical circuit comprises: an add-side MCS switch and an amplifier coupled to an output port of the add-side MCS switch.

43. The optical system defined in any of claims 23 to 40, comprising an add side optical circuit. wherein the add side optical circuit comprises:

a plurality of optical amplifiers, each having an input port for receiving an optical signal to be amplified;

a plurality of add-side selective devices, each for blocking some of wavelengths of light passing therethrough and for passing at least one other wavelength therethrough so as to provide output to an output port of said selective device, wherein each of the plurality of add-side selective devices has an input port optically coupled to an output port of one of the plurality of amplifiers in the add-side optical amplifying array; and,

an add-side multicast-and-select switch having a plurality of input ports and a plurality of output ports, wherein each of the plurality of input ports is optically coupled to an output port of one of the plurality of add-side selective devices.

44. The optical system defined in claim 43, wherein each of the plurality of optical amplifiers comprises one or more rare earth doped optical fibers for amplifying an optical signal propagating therethrough and has an output port for providing an amplified optical signal,

45. The optical system defined in any of claims 43 to 44, wherein the plurality of add-side selective devices in the add side optica) circuit comprise wave blockers.

46. The optical system defined in any of claims 43 to 44, wherein the plurality of add-side selective devices in the add side optical circuit comprise tunable optical filters.

47. An optical system comprising an add side optical circuit,

wherein the add side optical circuit comprises an add-side optical amplifying array comprising a plurality of optical amplifiers, each having an input port for receiving an optical signal to be amplified,

wherein each of the plurality of optical amplifiers comprises one or more rare earth doped optical fibers for amplifying an optical signal propagating therethrough and has an output port for providing an amplified optical signal,

wherein the add-side optical amplifying array comprises one or more laser pumps for providing pump light to all of the rare earth doped optical fibers in the add-side optical amplifying array,

wherein a number of the one or more laser pumps in the add-side optical amplifying array is less than a number of the plurality of optical amplifiers in the add-side optical amplifying array, and

wherein each of at least some of the optical amplifiers in the add-side optical amplifying array has a pump light port for receiving at least a portion of said pump light from the one or more laser pumps of the add-side optical amplifying array or from another of the plurality of optical amplifiers of the add-side optical amplifying array;

wherein the add side optical circuit further comprises:

a plurality of add-side selective devices, each for blocking some of wavelengths of light passing therethrough and for passing at least one other wavelength therethrough so as to provide output to an output port of said selective device, wherein each of the plurality of add-side selective devices has an input port optically coupled to an output port of one of the plurality of amplifiers in the add-side optical amplifying array,

and an add-side multicast-and-select switch having a plurality of input ports and a plurality of output ports, wherein each of the plurality of input ports is optically coupled to an output port of one of the plurality of add-side selective devices.

48. The optical system defined in claim 47, wherein the plurality of add-side selective devices in the add side optical circuit comprise wave blockers.

49. The optical system defined in claim 47, wherein the plurality of add-side selective devices in the add side optical circuit comprise tunable optical filters.

50. The optical system defined in any of claims 47 to 49, wherein the pump light is sufficient to fully saturate all of the rare earth doped optical fibers in the add-side optical amplifying array.

51. The optical system defined in claim 50, wherein the one or more rare earth doped optical fibers are erbium doped fibers.

52. The optical system defined in any of claims 47 to 51 , wherein each of the plurality of optical amplifiers in the add-side optical amplifying array comprises a gain flattening filter.

53. The optical system defined in any of claims 47 to 52, further comprising another add-side optical circuit and a combining circuit comprising a power splitter and one or more amplifiers, wherein input ports of the combining circuit are coupled to receive light from the two add-side optical circuits.

54. The optical system defined in claim 53, wherein each of the one or more amplifiers of the combining circuit comprises a gain flattening filter.