Power optimization of optical receivers
First Claim
1. An optical receiver system comprising:
- a local oscillator configured to generate a laser signal to indicate a selection of one of a plurality of channels;
a mixer configured to receive signals on the plurality of channels and to utilize the laser signal to distinguish the signal on the selected channel; and
a processor configured to maximize a power level difference between the laser signal and at least one of the plurality of channels based on a total number of the plurality of channels by adjusting the power of the laser signal input to the mixer to limit a noise penalty in the receiver system.
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Accused Products
Abstract
An optical receiver system is disclosed. The system includes a local oscillator, a mixer and a processor. The local oscillator is configured to generate a laser signal to indicate a selection of one of a plurality of channels. In addition, the mixer is configured to receive signals on the plurality of channels and to utilize the laser signal to distinguish the signal on the selected channel. Further, the processor is configured to maximize a power level difference between the laser signal and at least one of the plurality of channels based on a total number of the plurality of channels by adjusting the power of the laser signal input to the mixer to limit a noise penalty in the receiver system.
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Citations
20 Claims
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1. An optical receiver system comprising:
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a local oscillator configured to generate a laser signal to indicate a selection of one of a plurality of channels; a mixer configured to receive signals on the plurality of channels and to utilize the laser signal to distinguish the signal on the selected channel; and a processor configured to maximize a power level difference between the laser signal and at least one of the plurality of channels based on a total number of the plurality of channels by adjusting the power of the laser signal input to the mixer to limit a noise penalty in the receiver system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An optical signal processing system comprising:
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a reconfigurable optical add/drop multiplexer (ROADM) node including a selective switch configured to select a set of channels from a plurality of channels to drop to a plurality of transponders; and the plurality of transponders, wherein each transponder includes a local oscillator configured to generate a laser signal to indicate a selection of one of a plurality of channels and a mixer configured to receive signals on the set of channels and to utilize the laser signal to distinguish the signal on the selected channel, wherein the ROADM node further includes a processor configured to maximize a power level difference between the laser signal and at least one of the channels in the set of channels based on a total number of the set of channels by adjusting the power of the laser signal input to the mixer to limit a noise penalty in the corresponding transponder. - View Dependent Claims (11, 12)
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13. A method for optimizing optical signal power comprising:
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receiving a total number of a plurality of channels on which signals are input into an optical mixer; determining a maximal power level difference between a laser signal, generated to enable the mixer to distinguish a signal on one of the plurality of channels, and at least one of the plurality of channels based on the total number of the plurality of channels; and adjusting the power of the laser signal input to the mixer in accordance with the determined maximal power level difference to limit a noise penalty. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification