Tunable add-drop filter with an active resonator
First Claim
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1. An add-drop filter for transmitting at least one signal, the add-drop filter comprising:
- at least two optical waveguides capable of carrying the at least one signal; and
at least one active resonator coupled between the optical waveguides,wherein the at least one active resonator having an optical gain medium configured with properties that provide an optical gain that counteract losses between the at least one active resonator and the at least two optical waveguides for the at least one signal and whereby an add efficiency and a drop efficiency are equal to one.
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Abstract
An add-drop filter for transmitting at least one signal is provided. The add-drop filter includes at least two optical waveguides capable of carrying the at least one signal, and at least one active resonator coupled between the optical waveguides, wherein the at least one active resonator provides gain that counteracts losses for the at least one signal.
31 Citations
20 Claims
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1. An add-drop filter for transmitting at least one signal, the add-drop filter comprising:
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at least two optical waveguides capable of carrying the at least one signal; and at least one active resonator coupled between the optical waveguides, wherein the at least one active resonator having an optical gain medium configured with properties that provide an optical gain that counteract losses between the at least one active resonator and the at least two optical waveguides for the at least one signal and whereby an add efficiency and a drop efficiency are equal to one. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An optical communication system comprising:
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an add-drop filter for transmitting at least one signal; the add-drop filter including at least two optical waveguides capable of carrying the at least one signal; at least one active resonator coupled between the optical waveguides, wherein the at least one active resonator having an optical gain medium configured with properties that provide an optical gain that counteract losses between the at least one active resonator and the at least two optical waveguides for the at least one signal and whereby an add efficiency and a drop efficiency are equal to one; a gain stimulation device coupled to the add-drop filter; and the gain stimulation device configured to provide a gain stimulation signal that excites the optical gain medium of the at least one active resonator. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A method of transmitting at least one signal through an add-drop filter, the method comprising:
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directing the at least one signal into the add-drop filter, wherein the add-drop filter includes at least two optical waveguides, and at least one active resonator coupled between the optical waveguides; and providing, using the at least one active resonator, gain that counteracts losses for the at least one signal as the at least one signal is transmitted through the add-drop filter, where the at least one active resonator having an optical gain medium configured with properties that provide an optical whereby an add efficiency and a drop efficiency are equal to one. - View Dependent Claims (18, 19, 20)
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Specification