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We demonstrated 70nm seamless band transmission of 173×128Gb/s QPSK signals over 40×100km of TeraWave™ fiber. The complementary Raman/EDFAs and wide-band single-stage discrete Raman amplifiers were used to achieve this 17.3Tb/s capacity ultra-wide single-band transmission.
We demonstrate polarisation-insensitive parametric amplification in highly nonlinear fibre of a 2.048-Tbit/s dense WDM PDM 16-QAM signal with ∼10 dB on-off gain and simultaneous wavelength conversion and phase conjugation, with mean Q2 penalties of only 0.6 dB and 0.4 dB.
The roles of ADC ENOB and AGC clipping effect are investigated in coherent QAM optical transmission system by experiments and simulations, under different transmission effects. Potential implementation risks and optimization for AGC and ADC are presented.
We investigate the performance of linear equalization combined with MLSE in long-haul transmission. In the nonlinear regime with high launch powers Q-factor improvement up to 1.4 dB is demonstrated with a quaternary state model.
In these experiments we measure the CGS spectrum through a cascade of Raman pumped transmission spans and dispersion compensating fibers (DCF) in order to examine for the first time the evolution of the saturated gain variations through a transmission system.We have numerically simulated the output power spectra and gain saturation for this system.
A new gate controlled bipolar transistor is introduced in this paper which combines the lateral and vertical bipolar effect in standard NMOS device in a 90 nm triple well process technology. A current gain of more than 200, cut off frequency of about 7 GHz, and lower flicker noise compared with CMOS devices were achieved without any change to process and/or introduction of any extra masking step....
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