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A coherent MODEM is implemented with FEC payload and checksum distributed between two PM-QPSK optical channels spaced at 200 GHz. Real-time experiments verify PDL and PMD penalties are 40-50% higher without FEC gain sharing.
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.
In this paper we review recent developments in the area of receiver photonic integrated circuits for the implementation of polarization multiplexed (differentially coded), quadrature phase shift keying (DQPSK) transmission formats.
A 10-wavelength, polarization-multiplexed, monolithically integrated InP transmitter PIC is demonstrated for the first time to operate at 112 Gb/s per wavelength with a coherent receiver PIC.
Wavelet-based filtering in digital backward-propagation is presented for linear and nonlinear impairment compensation. This approach significantly reduces the computational load compared to inverse Fourier-transform filter design due to the finite support of wavelets.
The use of infinite impulse response filtering for back-propagation of an optical signal is investigated. Experimental results and a comparison between several compensation techniques show the feasibility of this approach.
Digital infinite impulse response filtering is used to compensate for 25,200ps/nm of chromatic dispersion at 10G Baud accumulated in a recirculating loop.
Design and construction of the undulators for the linac coherent light source (LCLS) at the Stanford Linear Accelerator Center (SLAC) is the responsibility of Argonne National Laboratory (ANL). A full-scale prototype undulator was constructed in-house and extensively tested at Argonne's advanced photon source (APS). The device was tunable to well within the LCLS requirements and was stable for five...
The use of infinite impulse response filters to achieve chromatic dispersion compensation for homodyne phase-diversity detection systems employing digital signal processing is proposed. Theory, simulation and experimental results show the advantages of this approach.
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