Jeng-Yuan Yang

TL;DR: In this paper, the authors demonstrate the ability to multiplex and transfer data between twisted beams of light with different amounts of orbital angular momentum, which provides new opportunities for increasing the data capacity of free-space optical communications links.

TL;DR: In this article, a ring fiber with 0.05 up-doping is designed in simulation to support up to 10 OAM modes while maintaining single-mode condition radially, and the mode index difference can be maintained above 10-4 over hundreds of nanometers optical bandwidth.

TL;DR: In this article, a radio frequency (RF)-tone-assisted optical orthogonal frequency-division multiplexing (OFDM) transmission was proposed and experimentally demonstrated, and the optimum value of the important parameter, carrier-to-signal-power ratio (CSPR), was analytically obtained and supported via the experimental results.

TL;DR: Ultra-small modulator and demodulator for 10 Gb/s differential phase-shift-keying (DPSK), using silicon-based microrings, are proposed, and a trade-off between pattern dependence of the Duobinary signal and alternate-mark inversion signal power in demodulators design is discussed.

TL;DR: By employing the iterative estimation and cancellation technique for the signal-signal beat interference at the receiver, the approach alleviates the need of the frequency gap, which is typically reserved for isolating the SSBI, and saves half the electrical bandwidth, thus being very spectrally efficient.