Abstract: An optical rotary joint includes a first annular portion and a second annular portion configured to rotate with respect to each other. Optical receivers on a receiver face of the second annular portion receive from optical transmit beam launchers on an emitter face of the first annular portion. The transmit beam launchers transmit optical signals to the optical receivers as the second annular portion rotates with respect to the first annular portion.

Abstract: An optical rotary joint includes a first annular portion and a second annular portion configured to rotate with respect to each other. Optical receivers on a receiver face of the second annular portion receive from optical transmit beam launchers on an emitter face of the first annular portion. The transmit beam launchers transmit optical signals to the optical receivers as the second annular portion rotates with respect to the first annular portion.

Abstract: A method and system for inter-channel spectral shaping in optical ring networks may involve selectively applying an attenuating notch filter at a spectral boundary between adjacent wavelength slots passed by a wavelength selective switch (WSS). In this manner, instability from net loop gain values exceeding unity may be prevented in the optical ring network.

Abstract: A method and system for inter-channel spectral shaping in optical ring networks may involve selectively applying an attenuating notch filter at a spectral boundary between adjacent wavelength slots passed by a wavelength selective switch (WSS). In this manner, instability from net loop gain values exceeding unity may be prevented in the optical ring network.

Abstract: A dispersion tolerant OC-192 optical transceiver includes the circuitry for implementing the method of reducing optical signal dispersion in a high data rate data stream that travels on an optical fiber communications system. The circuitry includes circuitry for partitioning the high data rate data stream into a plurality of lower data rate data streams. The transceiver transmits the plurality of lower data rate data streams along an associated one of a plurality of separate wavelength channels. A wavelength division multiplexing circuit multiplexes each of the lower data rate data streams on the plurality of separate wavelength channels into a single optical fiber assembly to form a multiplexed signal. The wavelength division multiplexing circuit further transmits the multiplexed lower data rate signal along the single optical fiber assembly.