TETINTELLIGENT OPTICAL TRANSCEIVER CAPABLE OF OPTICAL-LAYER MANAGEMENT
An integrated optical transceiver includes an optical receiver that receives a first optical signal that comprises input user data and a first modulation signal. The first modulation signal includes first management information. The optical receiver can output a first electrical signal comprising the first modulation signal and to output a second electrical signal comprising the input user data in response to the first optical signal. A processing unit can demodulate the first electrical signal to extract the first management information. The processing unit can produce a modulation control signal in response to second management information. An optical transmitter can output a second optical signal in response to the modulation control signal and a third electrical signal comprising output user data.
1 . An integrated optical transceiver, comprising:
an optical receiver configured to receive a first optical signal that comprises input user data and a first modulation signal, wherein the first modulation signal comprises first management information, wherein the optical receiver is configured to output a first electrical signal comprising the first modulation signal and to output a second electrical signal comprising the input user data in response to the first optical signal;
a processing unit configured to demodulate the first electrical signal to extract the first management information, wherein the processing unit is configured to produce a modulation control signal in response to second management information; and
an optical transmitter configured to output a second optical signal in response to the modulation control signal and a third electrical signal comprising output user data.
2 . The integrated optical transceiver of claim 1 , wherein the second optical signal includes an envelop modulation based on the modulation control signal and comprising the second management information.
3 . The integrated optical transceiver of claim 2 , wherein the optical transmitter produces the second optical signal under the control of a bias current, wherein the bias current is responsive to the modulation control signal.
4 . The integrated optical transceiver of claim 1 , wherein, the first modulation signal includes an envelop modulation of the first optical signal.
5 . The integrated optical transceiver of claim 1 , further comprising a micro controller configured to send the second management, information to the processing unit and receives the first management information from the processing unit.
6 . The integrated optical transceiver of claim 5 , wherein the micro controller is configured to produce at least, a portion of the second, management information in response to the first, management information.
7 . The integrated optical transceiver of claim 5 , further comprising a control interface, wherein the micro controller receives at least a portion of the second management information at the control interface and sends the first management information to the control interface.
8 . The integrated optical transceiver of claim 1 , further comprising;
a reception electrical interlace configured to output the second electrical signal; and
a transmission electrical interface configured to input the second electrical signal; wherein the reception electrical interface and the transmission electrical interface comply with a standard selected from the group consisting of GBIC, SFF, SEP, XFP, X2, XENPAK and SFP+.
9 . An integrated optical transceiver, comprising:
an optical receiver configured to output a first electrical signal in response to a first optical signal;
an optical transmitter configured to output a second optical signal in response to a second electrical signal;
a reception electrical interface configured to output the first electrical signal; and
a loop back controller configured to route the first electrical signal in at least two directions under the control of a first control signal, wherein the loop back controller is configured to route the first electrical signal to a reception electrical interface or to route the first electrical signal to the optical transmitter.
10 . The integrated optical transceiver of claim 9 , wherein the optical transmitter is configured to output the second optical signal in response to the first electrical signal routed from the optical receiver by the loop back controller.
11 . The integrated optical transceiver of claim 9 , further comprising a transmission
electrical interface configured to receive the second electrical signal, wherein the loop back controller is configured to route at least portions of the second electrical signal from the transmission electrical interface to the reception electrical interface under the control of a second control signal.
12 . The integrated optical transceiver of claim 11 , further comprising a micro controller configured to send the first control signal and the second control signal to the loop back controller.
13 . The integrated optical transceiver of claim 11 , wherein the reception electrical interface and the transmission electrical interface comply with a standard selected from the group consisting of GBIC, SFF, SFP, XFP, X2, XENPAK and SFP+.
14 . An Integrated optical transceiver, comprising;
an optical receiver configured to receive a first optical signal that comprises input user data and a first modulation signal, wherein the first modulation signal comprises first management information, wherein the optical receiver is configured, to output a first, electrical signal comprising the first modulation signal and to output a second electrical signal comprising the input user data in response to the first optical signal;
a processing unit configured to demodulate the first electrical signal to extract the first management information, wherein the processing unit is configured to produce a modulation control signal in response to second management information;
an optical transmitter configured to output a second optical signal in response to the modulation control signal and a third, electrical signal comprising output user data;
a transmission electrical interface configured to receive the third electrical signal;
a reception electrical interface configured to output the first electrical signal; and
a loop back controller configured to route the first electrical signal in at least two directions under the control of a first control signal, wherein the loop back controller is configured to route the first electrical signal to a reception electrical interface or to route the first electrical signal to the optical transmitter.
15 . The integrated optical transceiver of claim 14 , wherein the second optical signal includes an envelop modulation based on the modulation control signal and comprising the second management information, wherein the first modulation signal includes an envelop modulation of the first optical signal.
16 . The integrated optical transceiver of claim 14 , further comprising a micro controller configured to send the second management information to the processing unit and receives the first management information from the processing unit, and configured to send the first control signal to the loop back controller.
17 . The integrated optical transceiver of claim 16 , wherein the micro controller is configured to produce at least a portion of the second management information in response to the first management information.
18 . The integrated optical transceiver of claim 14 , wherein the reception electrical interface and the transmission electrical interface comply with a standard selected from the group consisting of OBIC, SFF, SFP, XFP, X2, XENPAK and SFP+.
19 . An optical communication system, comprising:
a first optical transceiver module, comprising:
a first transmitter configured to output a downstream optical signal in response to a downstream modulation control signal and a first downstream electrical signal comprising downstream user data; and
a first receiver configured to receive an upstream optical signal, wherein the upstream optical signal comprises upstream user data and a upstream modulation signal carrying upstream management information, wherein the first optical receiver is configured to output a first electrical signal comprising the upstream modulation signal and to output, a first, upstream electrical signal comprising the upstream user data;
a first processing unit configured to produce the downstream modulation control signal in response to downstream management information and configured to demodulate the first electrical signal to extract the upstream management information;
a second optical transceiver module, comprising:
a second receiver configured to receive the downstream optical signal and output a second electrical signal comprising the downstream modulation control signal and a second downstream electrical signal comprising the downstream user data;
a second processing unit configured to demodulate the second electrical signal to extract the downstream management Information and to produce an upstream modulation control signal in response to the upstream management information; and
a second transmitter configured to output the upstream optical signal in response to the upstream modulation control signal and a second upstream electrical signal comprising the upstream user data.
20 . The optical communication system of claim 19 , further comprising a network management unit configured to receive the upstream management information from the first processing unit and to produce at least a portion of the downstream management information in response to the upstream management information.
21 . The optical communication system of claim 19 , wherein the first optical transceiver module is pluggable into a first host device, wherein the first optical transceiver module is configured to receive the downstream user data from the first host device.
22 . The optical, communication system of claim 21 , wherein the second optical transceiver module is pluggable into a second host device, wherein the second optical transceiver module is configured to receive the upstream user data from the second, host device.
23 . A method for optical communication, comprising:
outputting a downstream optical signal by a first transmitter in response to a downstream modulation control signal and a first downstream electrical signal comprising downstream user data;
receiving, by a first receiver, an upstream optical signal, wherein the upstream optical signal comprises upstream user data and a upstream modulation signal carrying upstream management information;
outputting a first electrical signal comprising the upstream modulation signal by the first optical receiver;
outputting a first upstream electrical signal comprising the upstream user data by the first optical receiver;
producing the downstream modulation control signal by a first processing unit in response to downstream management information;
demodulating the first electrical signal to extract the upstream management information by the first processing unit;
receiving the downstream optical signal by a second receiver;
outputting, by the second receiver, a second electrical signal comprising the downstream modulation control signal and a second downstream electrical signal comprising the downstream user data;
demodulating the second electrical signal to extract the downstream management information by a second processing unit;
producing an upstream modulation control signal by the second processing unit in response to the upstream management information; and
outputting the upstream optical signal by a second transmitter in response to the upstream modulation control signal and a second, upstream electrical signal comprising the upstream user data.
24 . The method of claim 23 , further comprising producing at least a portion of the downstream management information in response to the upstream management information extracted by the first processing unit.
25 . The method of claim 23 , wherein the first receiver, the first transmitter, and the first processing unit are housed in a first unitary optical transceiver module, wherein the second receiver, the second transmitter, and the second processing unit are housed in a second unitary optical transceiver module.