Method and apparatus for managing an optical signal
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H04B-010/08
H04B-010/02
출원번호
UP-0319338
(2005-12-27)
등록번호
US-7630634
(2009-12-16)
발명자
/ 주소
Boduch, Mark E.
출원인 / 주소
Tellab Operations, Inc.
대리인 / 주소
Hamilton, Brook, Smith & Reynolds, P.C.
인용정보
피인용 횟수 :
11인용 특허 :
3
초록▼
A node for managing an optical signal includes a first system optics card for providing channels to be transported over a first optical transport link and receives channels from a second optical transport link. Channels received over the second optical transport link are provided to an optical conve
A node for managing an optical signal includes a first system optics card for providing channels to be transported over a first optical transport link and receives channels from a second optical transport link. Channels received over the second optical transport link are provided to an optical converter card for transport to a client device, for feedback onto the first optical transport link, or pass through to a second system optics card of the node. The first system optics card is capable of dropping network channels from the second transport link to associated client devices through optical converter cards and add client channels received from optical converter cards to the first transport link. The first system optics card may include one or more express input and output ports to couple with one or more other system optics cards in order to provide multiple degrees of communication capability.
대표청구항▼
What is claimed is: 1. An apparatus for managing an optical signal, comprising: a first optical converter card operable to provide information to and receive information from a first client device; a first system optics card operable to transport information over a first optical transport link, the
What is claimed is: 1. An apparatus for managing an optical signal, comprising: a first optical converter card operable to provide information to and receive information from a first client device; a first system optics card operable to transport information over a first optical transport link, the system optics card operable to receive information over a second optical transport link, the first system optics card operable to identify network channels on the second optical transport link destined for the first client device, the first system optics card operable to provide the identified network channels to the first optical converter card for delivery to the first client device, the first system optics card operable to receive client channels from the first optical converter card generated by the first client device, the first system optics card operable to transport the client channels of the first client device over the first optical transport link, wherein the first system optics card includes a plurality of express output ports to provide channels to a plurality of other system optics cards, wherein the first system optics card includes a plurality of express input ports to receive channels from a plurality of other system optics cards. 2. The apparatus of claim 1, further comprising: a second optical converter card operable to provide information to and receive information from a second client device; a second system optics card operable to transport information over a third optical transport link, the second system optics card operable to receive information over a fourth optical transport link, the second system optics card operable to identify network channels on the fourth optical transport link destined for the second client device, the second system optics card operable to provide the identified network channels to the second optical converter card for delivery to the second client device, the second system optics card operable to receive client channels from the second optical converter card generated by the second client device, the second system optics card operable to transport the client channels of the second client device over the third optical transport link. 3. The apparatus of claim 2, wherein network channels not destined for the first client device are provided by the first system optics card to the second system optics card for transport over the third optical transport link. 4. The apparatus of claim 2, wherein network channels not destined for the second client device are provided by the second system optics card to the first system optics card for transport over the first optical transport link. 5. The apparatus of claim 2 wherein a channel received over the second optical transport link can be provided to the first client device, the first optical converter for feedback over the first optical transport link, and the second system optics card for transport over the third optical transport link. 6. The apparatus of claim 1, wherein the first system optics card is operable to provide a feedback channel from the second optical transport link to the first optical converter card, the first optical converter card operable to process the feedback channel and provide the processed feedback channel to the first system optics card, the first system optics card operable to transport the processed feedback channel over the first optical transport link. 7. The apparatus of claim 1, wherein the first system optics card includes an optical supervisory channel processor operable to process information carried in a control channel on the second optical transport link. 8. The apparatus of claim 1, wherein the first system optics card is operable to multiplex a plurality of channels onto the first optical transport link generated by a plurality of client devices associated with a plurality of optical converter cards. 9. The apparatus of claim 1, wherein the first system optics card includes components that share a common power supply, power monitor, and processor. 10. The apparatus of claim 1, wherein the first system optics card provides an input amplifier having either a low gain or a high gain for respective short span and long span optical signal transport. 11. A node for managing an optical signal, comprising: a first optical processing side incorporated on a single circuit card and operable to transport channels over a first optical transport link and receive channels from a second optical transport link, the first optical processing side operable to provide channels received over the second optical transport link to a first group of client interfaces and receive channels from the first group of client interfaces for transport over the first optical transport link; a second optical processing side incorporated on a single circuit card and operable to transport channels over a third optical transport link and receive channels from a fourth optical transport link, the second optical processing side operable to provide channels received over the fourth optical transport link to a second group of client interfaces and receive channels from the second group of client interfaces for transport over the third optical transport link; wherein the first optical processing side and the second optical processing side are operable to couple the first optical transport link to the fourth optical transport link to allow channels to pass through the second optical processing side to the first optical processing side, the first optical processing side and the second optical processing side are operable to couple the second optical transport link to the third optical transport link to allow channels to pass through the first optical processing side to the second optical processing side, wherein the first optical processing side includes a plurality of express output ports to provide channels to a plurality of other optical processing sides, wherein the first optical processing side includes a plurality of express input ports to receive channels from a plurality of other optical processing sides. 12. The node of claim 11, further comprising: a third optical processing side incorporated on a single circuit card and operable to transport channels over a fifth optical transport link and receive channels from a sixth optical transport link, the third optical processing side operable to provide channels received over the sixth optical transport link to a third group of client interfaces and receive channels from the third group of client interfaces for transport over the fifth optical transport link; wherein the first optical processing side and the third optical processing side are operable to couple the first optical transport link to the sixth optical transport link to allow channels to pass through the third optical processing side to the first optical processing side, the first optical processing side and the third optical processing side are operable to couple the second optical transport link to the fifth optical transport link to allow channels to pass through the first optical processing side to the third optical processing side; wherein the third optical processing side and the second optical processing side are operable to couple the fifth optical transport link to the fourth optical transport link to allow channels to pass through the second optical processing side to the third optical processing side, the third optical processing side and the second optical processing side are operable to couple the sixth optical transport link to the third optical transport link to allow channels to pass through the third optical processing side to the second optical processing side. 13. The node of claim 11, wherein the first optical processing side is operable to provide a feedback channel received from the second optical transport link to the first optical transport link. 14. The node of claim 11, wherein the first and second optical processing sides are incorporated in separate enclosures, each enclosure having an integrated patch panel to facilitate optical fiber connections between enclosures and between the enclosures and the first and second groups of client interfaces. 15. The node of claim 11, wherein the first and second groups of client interfaces are provided on individual optical converter cards, each individual optical converter card being associated with a unique client. 16. A method for managing an optical signal, comprising: receiving a plurality of optical channels in an optical channel stream over an optical transport link; identifying an optical supervisory channel in the optical channel stream; amplifying the plurality of optical channels in the optical channel stream; determining a destination for each optical channel in the optical channel stream; providing certain optical channels destined for client processing or feedback processing to appropriate ones of a plurality of client port outputs; and providing certain optical channels destined for pass through processing to appropriate ones of a plurality of express output ports. 17. The method of claim 16, further comprising: after identifying an optical supervisory channel in the optical channel stream, extracting the optical supervisory channel from the optical channel stream. 18. The method of claim 17, further comprising: monitoring powers of optical channels in the optical channel stream. 19. The method of claim 18, further comprising: controlling an amount of amplification based on monitoring powers of optical channels. 20. The method of claim 16, wherein at least one client port output is operable to handle optical channels at a fixed wavelength. 21. The method of claim 16, wherein at least one client port output is operable to handle optical channels at any wavelength. 22. The method of claim 16, wherein an amount of amplification provided to the optical channel stream is based on a length of the optical transport link. 23. A method for managing an optical signal, comprising: enabling reception of certain optical channels for pass-through processing from appropriate ones of a plurality of express input ports; enabling reception of certain other optical channels from client processing or feedback processing via appropriate ones of a plurality of client port inputs; combining the optical channels in an optical channel stream; amplifying the optical channels in the optical channel stream; identifying an optical supervisory channels; inserting the optical supervisory channels into the optical channel stream; and providing the optical channel stream to a line output port. 24. The method of claim 23, wherein at least one client port input is operable to handle optical channels at a fixed wavelength. 25. The method of claim 23, wherein at least one client port input is operable to handle optical channels at any wavelength. 26. The method of claim 23, wherein an amount of amplification provided to the optical channel stream is based on a length of the optical transport link.
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