High-speed optical transponder systems
AssigneeCiena Corporation
InventorsStephen B. Alexander, Michael Y. Frankel, Steve W. Chaddick, Roy C. Litz, Cecil D. Smith
Life of this patent
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Abstract
The present disclosure provides high-speed wavelength division multiplexing (WDM) transponders (e.g., 10 Gb/s, 40 Gb/s, 100 Gb/s, and beyond) that receive one or more optical signals and convert and/or remodulate the received optical signals onto a newly generated optical channel along with overhead processing/addition, forward error correction, and the like. In general, the transponders of the present invention include a client-side and a line-side, each with bi-directional optical transmission. The transponders provide an effective mechanism to support WDM networks that are transparent to the client-side.
Claims17
An optical system, comprising:
- an optical remodulator comprising a client-side, λTi, and a line-side, λj, with electrical signal processing between the client-side and the line-side, wherein λTi is different from λj, with each having a same information-bearing signal thereon,
- wherein the line-side is part of a wavelength division multiplexing system and wherein the client-side utilizes a wavelength of about 1300 to 1600 nm,
- wherein the client-side operates a first protocol and the line-side operates a second protocol, wherein the first protocol is any of SONET, SDH, OTN, ATM, Ethernet, and Fibre Channel, and wherein the second protocol is any of SONET, SDH, OTN, and Ethernet, and
- wherein the client-side comprises a network element operating at any of layer one, layer two, and/or layer three, and wherein the line-side forms a wave division multiplexing layer separate from the layer one, layer two, and/or layer three.
An optical networking system, comprising:
- an optical transmission system comprising a client-side, λTi, and a line-side, λj, with electrical signal processing between the client-side and the line-side, wherein λTi is different from λj with each having a same information-bearing signal thereon;
- and
- circuitry communicatively coupling the client-side and the line-side, wherein the circuitry is configured to re-shape, re-time, and/or re-amplify a signal there between,
- wherein the client-side utilizes a wavelength of about 1300 to 1600 nm,
- wherein the line-side is connected to a wavelength division multiplexing system and utilizes an external modulator and a wavelength within a 1500 nm range,
- wherein the client-side comprises a first transmitter and a first receiver, and wherein the line-side comprises a second transmitter and a second receiver, and
- wherein the second transmitter and the second receiver utilize quadrature amplitude modulation.
An optical networking system, comprising:
- an optical transmission system comprising plural client-sides, λTi, and plural line-sides, λj, with electrical signal processing between the plural client-sides and the plural line-sides, wherein λTi is different from λj with each having a same information-bearing signal thereon;
- circuitry communicatively coupling the plural client-sides and the plural line-sides, wherein the circuitry is configured to re-shape, re-time, and/or re-amplify a signal there between;
- and
- an optical combiner connected to the plural line-sides and configured to multiplex wavelengths associated with each of the plural line-sides in a wavelength division multiplexing system,
- wherein each of the plural client-sides utilize a wavelength of about 1300 to 1600 nm,
- wherein each of the plural client-sides comprises a first transmitter and a first receiver and wherein each of the plural line-sides comprises a second transmitter and a second receiver, and
- wherein the circuitry is further configured to frame an information-bearing signal between the client-side and the line-side with an OTN frame.
Dependencies are inferred from the claim text.