Method and system for a polarization immune wavelength division multiplexing demultiplexer
First Claim
1. A method for optical communication, the method comprising:
- in a transceiver having a demultiplexer and an amplitude scrambler, the amplitude scrambler comprising a plurality of phase modulation sections coupled to outputs of the amplitude scrambler via at least two waveguides with the outputs of the amplitude scrambler directly coupled to inputs of the demultiplexer;
receiving at least two modulated input optical signals at the amplitude scrambler;
configuring an average optical power in each of the at least two waveguides utilizing the amplitude scrambler; and
demultiplexing the at least two modulated optical signals utilizing the demultiplexer.
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Accused Products
Abstract
Methods and systems for a polarization immune wavelength division multiplexing demultiplexer are disclosed and may include, in an optoelectronic transceiver having an input coupler, a demultiplexer, and an amplitude scrambler: receiving input optical signals via the input coupler, communicating the input optical signals to the amplitude scrambler via waveguides, configuring the average optical power in each of the waveguides utilizing the amplitude scrambler, and demultiplexing the optical signals utilizing the demultiplexer. The amplitude scrambler may include phase modulators and a coupling section. The phase modulators may include sections of P-N junctions in the two waveguides. The demultiplexer may include a Mach-Zehnder Interferometer. The demultiplexed signals may be received utilizing photodetectors. The input coupler may include a polarization splitting grating coupler. The average optical power may be configured above which demultiplexer control circuitry is able to control the demultiplexer to process incoming optical signals.
36 Citations
20 Claims
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1. A method for optical communication, the method comprising:
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in a transceiver having a demultiplexer and an amplitude scrambler, the amplitude scrambler comprising a plurality of phase modulation sections coupled to outputs of the amplitude scrambler via at least two waveguides with the outputs of the amplitude scrambler directly coupled to inputs of the demultiplexer; receiving at least two modulated input optical signals at the amplitude scrambler; configuring an average optical power in each of the at least two waveguides utilizing the amplitude scrambler; and demultiplexing the at least two modulated optical signals utilizing the demultiplexer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system for communication, the system comprising:
a transceiver comprising a demultiplexer and an amplitude scrambler, the amplitude scrambler comprising a plurality of phase modulation sections coupled to outputs of the amplitude scrambler via two or more waveguides with the outputs of the amplitude scrambler directly coupled to inputs of the demultiplexer, the transceiver being operable to; receive at least two modulated input optical signals at the amplitude scrambler; configure an average optical power in each of the at least two waveguides utilizing the amplitude scrambler; and demultiplex the at least two modulated input optical signals utilizing the demultiplexer. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A system for communication, the system comprising:
a transceiver comprising a polarization splitting grating coupler (PSGC), an amplitude scrambler, and a demultiplexer, the demultiplexer comprises a plurality of phase modulation sections coupled to outputs of the amplitude scrambler via at least two waveguides with the outputs of the amplitude scrambler directly coupled to inputs of the demultiplexer, the transceiver being operable to; receive at least two modulated input optical signals via the PSGC; configure an average optical power in each of the at least two waveguides utilizing the amplitude scrambler; and demultiplex the at least two modulated input optical signals utilizing the demultiplexer.
Specification