23 research outputs found
Optical performance monitoring from FIR filter coefficients in coherent receivers
Abstract: We present a robust and precise optical performance monitoring technique from FIR filter coefficients in coherent receivers with digital equalization. Residual chromatic dispersion, DGD and OSNR are simultaneously estimated from measured 111 Gbit/s data
Chromatic dispersion compensation in coherent transmission system using digital filters
Carrier phase estimation methods in coherent transmission systems influenced by equalization enhanced phase noise
MUSIQUE (31 mai 1873)
Transcript of MUSIQUE by Camille Saint-Saëns writing as Phémius, appearing in LA RENAISSANCE LITTÉRAIRE ET ARTISTIQUE, 31 mai 1873, p. 135
Coherent equalization versus direct detection for 111-Gb/s ethernet transport
We discuss coherent equalization to realize robust 111-Gb/s transmission. For 111-Gb/s POLMUX-RZDQPSK we experimentally show the advantage of coherent equalization over direction detection for compensation of both chromatic dispersion and differential group delay
Coherent equalization versus direct detection for 111-Gb/s ethernet transport
We discuss coherent equalization to realize robust 111-Gb/s transmission. For 111-Gb/s POLMUX-RZDQPSK we experimentally show the advantage of coherent equalization over direction detection for compensation of both chromatic dispersion and differential group delay
Carrier phase estimation for coherent equalization of 43-Gb/s POLMUX-NRZ-DQPSK transmission with 10.7-Gb/s NRZ neighbours
We show the influence of 10.7-Gb/s NRZ neighbors on 43-Gb/s polarization-multiplexed NRZ-DQPSK transmission combined with digital coherent equalization. The impact of XPM induced phase noise is reduced with an optimized carrier phase estimation (CPE) algorithm
Impairment tolerance of 111 Gbit/s POLMUX-RZ-DQPSK using a reduced complexity coherent receiver with a T-spaced equaliser
The tolerance to narrow spectral filtering in presence of chromatic dispersion is investigated for 111Gbit/s POLMUX-RZ-DQPSK. It is shown that the use of T-spaced equalisers is enabled by appropriate electrical filtering
Electrical PMD compensation in 43-Gb/s POLMUX-NRZ-DQPSK enabled by coherent detection and equalization
PMD compensation using coherent equalization is demonstrated experimentally. Using 43-Gb/s polarization-multiplexed NRZ-DQPSK, we show compensation of practically arbitrary amounts of DGD (>200ps) and CD with negligible penalty, even in the presence of PDL and SOPMD
Carrier phase estimation for coherent equalization of 43-Gb/s POLMUX-NRZ-DQPSK transmission with 10.7-Gb/s NRZ neighbours
We show the influence of 10.7-Gb/s NRZ neighbors on 43-Gb/s polarization-multiplexed NRZ-DQPSK transmission combined with digital coherent equalization. The impact of XPM induced phase noise is reduced with an optimized carrier phase estimation (CPE) algorithm