Wavelength selective device and switch and method thereby
First Claim
1. A device for wavelength selective phase control of a signal at a predetermined wavelength comprised in a wavelength multiplexed optical signal, said device comprising:
- an input port for inputting the wavelength multiplexed optical signal;
a splitting means for splitting the input wavelength multiplexed optical signal into the signal at the predetermined wavelength and a signal comprising substantially the remaining wavelengths in the multiplex, wherein said splitting means includes an MMI coupler and a Bragg grating;
a phase control means for phase control of one of the two split signals;
a combining means for combining the split phase-controlled signal and the other split signal to achieve a wavelength multiplexed wavelength selectively phase-controlled optical signal, wherein said combining means includes an MMI coupler and a Bragg grating; and
an output port for outputting the wavelength multiplexed wavelength selectively phase-controlled optical signal.
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Abstract
The present invention relates to a device for wavelength selective phase control of a signal at a predetermined wavelength in a wavelength multiplexed optical signal, which comprises an input port for inputting the wavelength multiplexed optical signal, a splitting means for splitting the input wavelength multiplexed optical signal into the signal at the predetermiend wavelength and a signal comprising of substantially the remaining wavelengths in the multiplex, a phase control element for phase control of one of the two splitted signals, a combining device for combining the splitted phase-controlled signal and the other splitted signal in order to achieve a wavelength multiplexed wavelength selectively phase-controlled optical signal, and an output port for outputting the wavelength multiplexed wavelength selectively phase-controlled optical signal. A switch comprising at least one device of said kind and a method for wavelength selective phase control are likewise comprised in the present invention.
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Citations
31 Claims
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1. A device for wavelength selective phase control of a signal at a predetermined wavelength comprised in a wavelength multiplexed optical signal, said device comprising:
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an input port for inputting the wavelength multiplexed optical signal;
a splitting means for splitting the input wavelength multiplexed optical signal into the signal at the predetermined wavelength and a signal comprising substantially the remaining wavelengths in the multiplex, wherein said splitting means includes an MMI coupler and a Bragg grating;
a phase control means for phase control of one of the two split signals;
a combining means for combining the split phase-controlled signal and the other split signal to achieve a wavelength multiplexed wavelength selectively phase-controlled optical signal, wherein said combining means includes an MMI coupler and a Bragg grating; and
an output port for outputting the wavelength multiplexed wavelength selectively phase-controlled optical signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A method for wavelength selective phase control of a signal at a predetermined wavelength in a wavelength multiplexed optical signal, comprising the following steps:
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receiving the wavelength multiplexed optical signal;
splitting the input wavelength multiplexed optical signal into the signal at the predetermined wavelength and a signal comprising substantially the remaining wavelengths in the multiplex, wherein said splitting utilizes an MMI coupler and a Bragg grating;
phase controlling one of the two split signals;
combining the split phase controlled signal and the other split signal in order to achieve a wavelength multiplexed wavelength selectively phase controlled optical signal, wherein said combining utilizes an MMI coupler and a Bragg grating; and
outputting the wavelength multiplexed wavelength selectively phase controlled optical signal.
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Specification