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We theoretically and numerically analyze the multi-carriers generation scheme based on only integrated IQ modulator. Flat and stable 11 carriers are obtained and 112Gb/s PM-QPSK experiment over a single subcarrier has been demonstrated.
We propose and demonstrate a novel scheme to generate a large number of flattened optical subcarriers at low insertion loss using only cascaded phase modulators driven by different frequencies asynchronous sinusoidal sources for Tb/s communication.
We propose an optical MSK modulation scheme to achieve the 100Gb/s MSK signal with constant envelope and continuous temporal phase shift. The investigation on the transmission performance clearly demonstrates the feasibility of the proposed scheme.
We investigate to generate coherent and frequency-lock optical multi-carriers by using cascaded phase modulators and recirculating frequency shifter (RFS) based on an EDFA loop. 113 coherent and frequency-lock subcarriers with tone-to-noise ratio larger than 26dB are generated. The amplitude difference of subcarriers obtained after a tilt filter covering about 22.6nm is less than 5dB.
A novel and flexible bandwidth scheduling scheme based on three dimensional divisions multiplexing of MSK-OFDM for both downstream and upstream data in OFDM-PON is proposed and experimentally demonstrated with good performances at 2.5Gbit/s by 5 sidebands.
Optical minimum-shift keying exhibits a promising application for its high compact spectrum. In this paper, we propose a new heterodyne detection scheme to demodulate 40 Gb/s MSK signal, compare it with the homodyne detection, and investigate the performance of the receiver in different schemes.
In this paper, we present the generation, the detection and the performance evaluation of a novel return-to-zero frequency shift keying (RZ-FSK) format for 40 Gb/s transmission. Non-return-to-zero (NRZ) FSK signal is generated by using two continues-wave (CW) lasers, one Mach-Zehnder modulator (MZM) and one Mach-Zehnder delay interferometer (MZDI). A RZ-FSK signal is successfully generated by cascading...
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