Optical wireless access systems

• US 20050254820A1
• Filed: 05/14/2004
• Published: 11/17/2005
• Est. Priority Date: 05/14/2004
• Status: Abandoned Application

• Current Assignee: Zentera Incorporated Limited
• Original Assignee: Zentera Incorporated Limited
• Inventors: Zhang, Jonathan Yu, Reichenbach, Mark G., Zhou, Feng Qing
• Application Number:
  US10/845,768
• Publication Number:
  US 20050254820A1
• Time in Patent Office: Days
• US Class Current: 398/83
• CPC Class Codes: H04B 10/25752 Optical arrangements for wireless networks
• CPC Class Codes: H04W 36/08 Reselecting an access point
• CPC Class Codes: H04W 84/00 Network topologies

Abstract

An optical access system includes a plurality of CWDM converters. A CWDM demux is coupled to at least a portion of the plurality of the CWDM converters. A CWDM mux is coupled to at least a portion of the plurality of the CWDM converters. An optical circulator, or a wideband splitter, is coupled to the demux and the mux by a single fiber. A first CWDM add/drop device is coupled to the optical circulator, or the wideband splitter, and to a first coupler. A first CWDM converter is coupled to the first coupler. A wireless access point is coupled to the CWDM converter.

Claims

1. An optical access system, comprising:

a plurality of CWDM converters;

a CWDM demux coupled to at least a portion of the plurality of the CWDM converters;

a CWDM mux coupled to at least a portion of the plurality of the CWDM converters;

an optical circulator or a wideband splitter coupled to the demux and the mux by a single fiber;

a first CWDM add/drop device coupled to the optical circulator or the wideband splitter and to a first coupler;

a first CWDM converter coupled to the first coupler; and

a wireless access point coupled to the CWDM converter.

2. The system of claim 1, wherein the coupler is a 3 dB coupler.

3. The system of claim 1, further comprising:

an access point including;

a second CWDM add/drop device coupled to the optical circulator or the wideband splitter and to a second coupler;

a second CWDM converter coupled to the second coupler; and

a free space optical access assembly coupled to the second CWDM converter.

4. The system of claim 1, further comprising:

an Ethernet connection port coupled to a third CWDM converter.

5. The system of claim 1, wherein each of a CWDM converter is a 10/100BASE-TX to 10/100Base-FX Media converter.

6. The system of claim 5, wherein each of a CWDM converter is a 10/100 Mbps Ethernet to fiber optic media converter with a transmitter having one of the CWDM wavelengths.

7. The system of claim 6, wherein the wavelengths are selected from at least one of, 1270, 1290, 1310, 1330, 1350, 1370, 1390, 1410, 1430, 1450, 1470, 1490, 1510, 1530, 1550, 1570, 1590 and 1610 nm.

8. The system of claim 6, wherein the wavelengths are selected from at least one of 1271, 1291, 1311, 1331, 1351, 1371, 1391, 1411, 1431, 1451, 1471, 1491, 1511, 1531, 1551, 1571, 1591 and 1611 nm.

9. The system of claim 7, wherein there are no duplicate wavelengths in one group.

10. The system of claim 1, wherein the wireless access point is a 802.11 b/g/a/wireless access point with routing functionality.

11. The system of claim 1, wherein the wireless access point is a 802.16 wireless access point with routing functionality.

12. The system of claim 10, wherein the wireless access point performs at least one of access provisioning, bandwidth management, account and billing, VLAN, security and networking functionality.

13. The system of claim 3, wherein the free space optical access provides a free space beam that operates in a point to point mode.

14. The system of claim 13, wherein the free space optical access provides a free space beam that operates in a point to point mode to implement at least one of a repeater, bridge, high bandwidth access, Ip routing and managements.

15. The system of claim 4, wherein the Ethernet connection port provides at least one of, direct 10 BaseT, 100BaseT or 1000BaseT Ethernet connection ports and necessary IP functions.

16. An optical access system, comprising:

a plurality of CWDM converters;

a CWDM demux coupled to at least a portion of the plurality of the CWDM converters;

a CWDM mux coupled to at least a portion of the plurality of the CWDM converters;

an optical circulator or a wideband splitter coupled to the demux and the mux by a single fiber;

a first CWDM add/drop device coupled to the optical circulator or the wideband splitter and to a first coupler;

a first CWDM converter coupled to the first coupler; and

a free space optical access assembly coupled to the CWDM converter.

17. The system of claim 16, wherein the coupler is a 3 dB coupler.

18. The system of claim 16, further comprising:

an access point including;

a second CWDM add/drop device coupled to the optical circulator or the wideband splitter and to a second coupler;

a second CWDM converter coupled to the second coupler; and

a wireless access point coupled to the second CWDM converter.

19. The system of claim 16, further comprising:

an Ethernet connection port coupled to a third CWDM converter.

20. The system of claim 16, wherein each of a CWDM converter is a 10/100BASE-TX to 10/100Base-FX Media converter.

21. The system of claim 20, wherein each of a CWDM converter is a 10/100 Mbps Ethernet to fiber optic media converter with a transmitter having one of the DWDM wavelengths.

22. The system of claim 21, wherein the wavelengths are selected from at least one of, 1270, 1290, 1310, 1330, 1350, 1370, 1390, 1410, 1430, 1450, 1470, 1490, 1510, 1530, 1550, 1570, 1590 and 1610 nm.

23. The system of claim 21, wherein the wavelengths are selected from at least one of 1271;

1291, 1311, 1331, 1351, 1371, 1391, 1411, 1431, 1451, 1471, 1491, 1511, 1531, 1551, 1571, 1591 and 1611 nm.

24. The system of claim 21, wherein there are no duplicate wavelengths in one group.

25. An optical access system, comprising:

a plurality of CWDM converters;

a CWDM demux coupled to at least a portion of the plurality of the CWDM converters;

a CWDM mux coupled to at least a portion of the plurality of the CWDM converters;

a first CWDM add/drop device coupled to the CWDM mux and the CWDM demux with a single fiber ring;

a second CWDM add/drop device coupled to the CWDM mux and the CWDM demux with the single fiber ring;

a first CWDM converter coupled to the first and second CWDM add/drop devices and a wireless access point.

26. The system of claim 25, wherein each of a CWDM converter is a 10/100BASE-TX to 10/100Base-FX Media converter.

27. The system of claim 26, wherein each of a CWDM converter is a 10/100 Mbps Ethernet to fiber optic media converter with a transmitter having one of the CWDM wavelengths.

28. The system of claim 27, wherein the wavelengths are selected from at least one of, 1270, 1290, 1310, 1330, 1350, 1370, 1390, 1410, 1430, 1450, 1470, 1490, 1510, 1530, 1550, 1570, 1590 and 1610 nm.

29. The system of claim 27, wherein the wavelengths are selected from at least one of 1271, 1291, 1311, 1331, 1351, 1371, 1391, 1411, 1431, 1451, 1471, 1491, 1511, 1531, 1551, 1571, 1591 and 1611 nm.

30. The system of claim 25, wherein there are no duplicate wavelengths in one group.

31. The system of claim 25, wherein the wireless access point is a 802.11b/g/a/wireless access point with routing functionality.

32. The system of claim 25, wherein the wireless access point is a 802.16 wireless access point with routing functionality.

33. The system of claim 25, wherein the wireless access point performs at least one of access provisioning, bandwidth management, account and billing, VLAN, security and networking functionality.

34. An optical access system, comprising:

a plurality of CWDM converters;

at least one CWDM GigE converter;

a CWDM demux coupled to at least a portion of the plurality of the CWDM converters;

a CWDM mux coupled to at least a portion of the plurality of the CWDM converters, the CWDM GigE converter being coupled to at least one of the CWDM demux or the CWDM mux;

an optical circulator or a wideband splitter coupled to the CWDM demux and the CWDM mux by first and second fibers;

a first CWDM add/drop device coupled to the optical circulator or the wideband splitter and to a first coupler;

a first CWDM converter coupled to the first coupler;

a free space optical access assembly or a wireless access point is coupled to the CWDM converter;

a second CWDM add/drop device coupled to the optical circulator or the wideband splitter and to a second coupler;

a first CWDM GigE converter coupled to the second coupler and to a GigE switch or a GigE router; and

a first optical access system coupled to the GigE switch or a GigE router.

35. The system of claim 34, wherein the first optical access system includes:

a plurality of CWDM converters;

a CWDM demux coupled to at least a portion of the plurality of the CWDM converters;

a CWDM mux coupled to at least a portion of the plurality of the CWDM converters;

an optical circulator or a wideband splitter coupled to the demux and the mux by a single fiber;

a first CWDM add/drop device coupled to the optical circulator or the wideband splitter and to a first coupler;

a first CWDM converter coupled to the first coupler; and

a free space optical access assembly coupled to the CWDM converter.

36. The system of claim 34, wherein the first optical access system includes:

a plurality of CWDM converters;

a CWDM demux coupled to at least a portion of the plurality of the CWDM converters;

a CWDM mux coupled to at least a portion of the plurality of the CWDM converters;

an optical circulator or a wideband splitter coupled to the demux and the mux by a single fiber;

a first CWDM add/drop device coupled to the optical circulator or the wideband splitter and to a first coupler;

a first CWDM converter coupled to the first coupler; and

a free space optical access assembly coupled to the CWDM converter.

37. The system of claim 34, wherein the first optical access system includes:

a plurality of CWDM converters;

a CWDM demux coupled to at least a portion of the plurality of the CWDM converters;

a CWDM mux coupled to at least a portion of the plurality of the CWDM converters;

a first CWDM add/drop device coupled to the CWDM mux and the CWDM demux with a single fiber ring;

a second CWDM add/drop device coupled to the CWDM mux and the CWDM demux with the single fiber ring;

a first CWDM converter coupled to the first and second CWDM add/drop devices and a wireless access point.

38. The system of claim 34, further comprising:

an Ethernet connection port coupled to a third CWDM converter.

39. The system of claim 38, wherein the Ethernet connection port provides at least one of, direct 10 BaseT, 100BaseT or 1000BaseT Ethernet connection ports and necessary IP functions.

40. The system of claim 34, wherein the CWDM GigE converter is a coarse wavelength division multiplexing 1000Base-TX to 1000Base-FX media converter.

41. The system of claim 34, wherein the CWDM GigE converter is a 1 Gbps Ethernet to fiber optic media converter with a transmitter having one of the CWDM wavelengths.

42. The system of claim 34, wherein each of a CWDM converter is a 10/100BASE-TX to 10/100Base-FX Media converter.

43. The system of claim 34, wherein each of a CWDM converter is a 10/100 Mbps Ethernet to fiber optic media converter with a transmitter having one of the CWDM wavelengths.

44. The system of claim 43, wherein the wavelengths are selected from at least one of, 1270, 1290, 1310, 1330, 1350, 1370, 1390, 1410, 1430, 1450, 1470, 1490, 1510, 1530, 1550, 1570, 1590 and 1610 nm.

45. The system of claim 43, wherein the wavelengths are selected from at least one of 1271, 1291, 1311, 1331, 1351, 1371, 1391, 1411, 1431, 1451, 1471, 1491, 1511, 1531, 1551, 1571, 1591 and 1611 nm.

46. The system of claim 43, wherein there are no duplicate wavelengths in one group.

47. The system of claim 34, wherein the wireless access point is a 802.11 b/g/a/wireless access point with routing functionality.

48. The system of claim 34, wherein the wireless access point is a 802.16 wireless access point with routing functionality.

49. The system of claim 34, wherein the wireless access point performs at least one of access provisioning, bandwidth management, account and billing, VLAN, security and networking functionality.

50. An optical access system, comprising:

a plurality of CWDM converters;

at least one CWDM GigE converter;

a CWDM demux coupled to at least a portion of the plurality of the CWDM converters;

a CWDM mux coupled to at least a portion of the plurality of the CWDM converters, the CWDM GigE converter being coupled to at least one of the CWDM demux or the CWDM mux;

an optical circulator or a wideband splitter coupled to the demux and the mux by first and second fibers;

a first CWDM add/drop device coupled to the optical circulator or the wideband splitter and to a first coupler;

a first CWDM GigE converter coupled to the first coupler;

a first GigE switch or router coupled to the first CWDM GigE converter;

a second CWDM add/drop device coupled to the optical circulator or the wideband splitter and to a second coupler;

a second CWDM GigE converter coupled to the second coupler and to a second GigE switch or a GigE router; and

a first optical access system coupled to the GigE switch or a GigE router.

51. The system of claim 50, wherein the first optical access system includes:

a plurality of CWDM converters;

a CWDM demux coupled to at least a portion of the plurality of the CWDM converters;

a CWDM mux coupled to at least a portion of the plurality of the CWDM converters;

an optical circulator or a wideband splitter coupled to the demux and the mux by a single fiber;

a first CWDM add/drop device coupled to the optical circulator or the wideband splitter and to a first coupler;

a first CWDM converter coupled to the first coupler; and

a free space optical access assembly coupled to the CWDM converter.

52. The system of claim 50, wherein the first optical access system includes:

a plurality of CWDM converters;

a CWDM demux coupled to at least a portion of the plurality of the CWDM converters;

a CWDM mux coupled to at least a portion of the plurality of the CWDM converters;

an optical circulator or a wideband splitter coupled to the demux and the mux by a single fiber;

a first CWDM add/drop device coupled to the optical circulator or the wideband splitter and to a first coupler;

a first CWDM converter coupled to the first coupler; and

a free space optical access assembly coupled to the CWDM converter.

53. The system of claim 50, wherein the first optical access system includes:

a plurality of CWDM converters;

a CWDM demux coupled to at least a portion of the plurality of the CWDM converters;

a CWDM mux coupled to at least a portion of the plurality of the CWDM converters;

a first CWDM add/drop device coupled to the CWDM mux and the CWDM demux with a single fiber ring;

a second CWDM add/drop device coupled to the CWDM mux and the CWDM demux with the single fiber ring;

a first CWDM converter coupled to the first and second CWDM add/drop devices and a wireless access point.

54. The system of claim 50, further comprising:

a third GigE switch or router coupled to a third CWDM GigE converter.

55. The system of claim 52, wherein each CWDM GigE converter is a coarse wavelength division multiplexing 1000Base-TX to 1000Base-FX media converter.

56. The system of claim 52, wherein each CWDM GigE converter is a 1 Gbps Ethernet to fiber optic media converter with a transmitter having one of the CWDM wavelengths.

57. The system of claim 50, wherein each of a CWDM converter is a 10/100BASE-TX to 10/100Base-FX Media converter.

58. The system of claim 50, wherein each of a CWDM converter is a 10/100 Mbps Ethernet to fiber optic media converter with a transmitter having one of the CWDM wavelengths.

59. The system of claim 50, wherein the wavelengths are selected from at least one of, 1270, 1290, 1310, 1330, 1350, 1370, 1390, 1410, 1430, 1450, 1470, 1490, 1510, 1530, 1550, 1570, 1590 and 1610 nm.

60. The system of claim 50, wherein the wavelengths are selected from at least one of 1271, 1291, 1311, 1331, 1351, 1371, 1391, 1411, 1431, 1451, 1471, 1491, 1511, 1531, 1551, 1571, 1591 and 1611 nm.

61. The system of claim 50, wherein there are no duplicate wavelengths in one group.

62. The system of claim 50, wherein the wireless access point is a 802.11 b/g/a/wireless access point with routing functionality.

63. The system of claim 50, wherein the wireless access point is a 802.16 wireless access point with routing functionality.

64. The system of claim 50, wherein the wireless access point performs at least one of access provisioning, bandwidth management, account and billing, VLAN, security and networking functionality.