OPTICAL TRANSCEIVER WITH VARIABLE DATA RATE AND SENSITIVITY CONTROL
First Claim
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1. An optical communications system, comprising:
- a modulator/demodulator (modem) to transmit outgoing communications data and to receive incoming communications data in a transceiver;
a main detector coupled to the modem to convert an optical signal representing the incoming communications data to an electrical signal for the modem; and
an adaptive data rate processor to monitor the electrical signal from the main detector to determine a current power level for the optical signal, wherein the adaptive data rate processor dynamically adjusts a data rate of the modem based on the determined current power level of the optical signal.
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Abstract
An optical communications system includes a modulator/demodulator (modem) to transmit outgoing communications data and to receive incoming communications data in a transceiver. A main detector is coupled to the modem to convert an optical signal representing the incoming communications data to an electrical signal for the modem. An adaptive data rate processor monitors the electrical signal from the main detector to determine a current power level for the optical signal. The adaptive data rate processor dynamically adjusts a data rate of the modem based on the determined current power level of the optical signal.
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Citations
36 Claims
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1. An optical communications system, comprising:
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a modulator/demodulator (modem) to transmit outgoing communications data and to receive incoming communications data in a transceiver; a main detector coupled to the modem to convert an optical signal representing the incoming communications data to an electrical signal for the modem; and an adaptive data rate processor to monitor the electrical signal from the main detector to determine a current power level for the optical signal, wherein the adaptive data rate processor dynamically adjusts a data rate of the modem based on the determined current power level of the optical signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. An optical communications system, comprising:
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a modulator/demodulator (modem) to transmit outgoing communications data and to receive incoming communications data in a transceiver; a main detector coupled to the modem to convert an optical signal representing the incoming communications data to an electrical signal for the modem; an auxiliary detector to detect a power level of the optical signal and to generate an electrical output signal representing the power level; and an adaptive data rate processor to monitor the electrical output signal from the auxiliary detector to determine a current power level for the optical signal, wherein the adaptive data rate processor dynamically adjusts a data rate of the modem based on the determined current power level of the optical signal. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. An optical communications method, comprising:
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detecting, by a processor, a current power level of a received optical signal in an optical transceiver; determining, by the processor, if the current power level of the received optical signal has changed from a previous power level; adjusting, by the processor, a data rate for the optical transceiver if the current power level of the received optical signal has changed from the previous power level; and adjusting, by the processor, a sensitivity level of at least one detector in the optical transceiver if the current power level of the received optical signal has changed from the previous power level. - View Dependent Claims (36)
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Specification