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 of 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 and commands the modem to a new data rate based upon detecting a power level change from the current power level, wherein the new data rate is based upon a predetermined power threshold.
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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.
39 Citations
33 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 of 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 and commands the modem to a new data rate based upon detecting a power level change from the current power level, wherein the new data rate is based upon a predetermined power threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. 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 having a predetermined range of optical power and representing the incoming communications data to an electrical signal for the modem over the predetermined range of optical power, wherein the predetermined range of optical power represents a maximum and a minimum power level for the transceiver; an auxiliary detector to detect a power level of the optical signal over the predetermined range of optical power 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 of 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 (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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Specification