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Dual-carrier SD-FEC gain sharing is utilized as a nonlinearity mitigation strategy for coherent super-channels in the context of submarine communications. Up to 0.68 dB benefit in Q and 50% more capacity is demonstrated.
In this talk, we report on a pair of monolithically integrated multi-wavelength transmitter and receiver PICs employing polarization multiplexing and quadrature phase-shift keying modulation to provide an aggregate bandwidth greater than 1Tbps on a single chip.
A new type of dual-band ESPAR (Electronically Steerable Parasitic Array Radiator) array antenna is presented. The antenna consists of one feeding radiating element and two-layer parasitic radiating elements. The parasitic radiating element of each layer is composed of 6 parasitic monopoles and placed in the near field of the active radiator. Replacing the reactance-load, the on/off controlling is...
A printed dipole antenna with broad band is proposed for modern wireless communication systems, which sufficiently covers the DCS, PCS, TD-SCDMA (A + B + C), and WLAN bands. The antenna has two tapered arms fed by an integrated balun, leading to a broad impedance bandwidth. Moreover, triangular-shaped grounds are designed for the antenna, which improves the impedance bandwidth effectively. A prototype...
Signal pulses from a femtosecond optical parametric oscillator were carrier-envelope-offset stabilized for ∼10 minutes with a bandwidth of <2 kHz and a cumulative phase error over 1 second of 2.05 radians, without f-2f self-referencing.
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