Optical coupling device with adjustable coupling coefficient
AssigneeSalience Labs Ltd
InventorsJohannes Feldmann, Vayshnavee Kewada
Life of this patent
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Abstract
An optical coupling device is presented. The optical coupling device comprises a plurality of input channels; a plurality of output channels; and a plurality of input coupling arrangements, or a plurality of output coupling arrangements, or a combination of both. Each input coupling arrangement has a coupling channel, and is configured to couple an optical signal propagating through a corresponding input channel into the coupling channel with an adjustable coupling coefficient. Each output coupling arrangement has a coupling channel and is configured to couple an optical signal propagating through the coupling channel into a corresponding output channel with an adjustable coupling coefficient.
Claims22
An optical coupling device comprising
- a plurality of input channels;
- a plurality of output channels;
- a plurality of input coupling arrangements and/or a plurality of output coupling arrangements;
- wherein each input coupling arrangement comprises a coupling channel, the input coupling arrangement being configured to couple an optical signal propagating through a corresponding input channel into the coupling channel with an adjustable coupling coefficient;
- wherein each output coupling arrangement comprises a coupling channel, the output coupling arrangement being configured to couple an optical signal propagating through the coupling channel into a corresponding output channel with an adjustable coupling coefficient;
- wherein each input channel, and/or each output channel, and/or each coupling channel, is provided with an amplitude adjuster comprising an attenuator followed by an optical amplifier;
- and
- a controller configured to set the adjustable coupling coefficients, so as to control an amount of optical signal propagating through the input channel, and to control an amount of optical signal propagating through the output channel.
A method of manipulating an optical signal, the method comprising
- providing an optical coupling device comprising a plurality of input channels;
- a plurality of output channels;
- and a plurality of input coupling arrangements and/or a plurality of output coupling arrangements;
- wherein each input coupling arrangement comprises a coupling channel, the input coupling arrangement being configured to couple an optical signal propagating through a corresponding input channel into the coupling channel with an adjustable coupling coefficient;
- wherein each output coupling arrangement comprises a coupling channel, the output coupling arrangement being configured to couple an optical signal propagating through the coupling channel into a corresponding output channel with an adjustable coupling coefficient;
- wherein each input channel, and/or each output channel, and/or each coupling channel, is provided with an amplitude adjuster comprising an attenuator followed by an optical amplifier;
- sending the optical signal through an input channel;
- and
- operating the plurality of coupling arrangements with a controller to manipulate the optical signal.
Dependencies are inferred from the claim text.