نتایج جستجو برای: enhanced modulation bandwidth
تعداد نتایج: 535499 فیلتر نتایج به سال:
Acousto-optic interactions involving propagating phonons can break the time-reversal and frequency-modulation symmetry of light. However, conventional acousto-optic modulators based on bulk materials have frequency bandwidth limited to hundreds megahertz due their large structural sizes. Here, we experimentally demonstrate gigahertz single-sideband modulation an etchless lithium niobate integra...
The electro-optical bandwidth and extinction ratio requirements of in-phase quadrature modulators to enable 1 Tb/s per channel optical transmission rates are evaluated through numerical simulations. Employing sixty-four amplitude modulation (64QAM), the simulation results indicate that best trade-off between number carriers technological complexity designing manufacturing an integrated transcei...
Frequency modulation coherent anti-Stokes Raman scattering (FM CARS) is presented, using a compact as well fast and widely tunable fiber-based light source. With this source resonances between 700 cm$^{-1}$ 3200 can be addressed via wavelength tuning within only 5 ms, which allows for FM CARS measurements with frame-to-frame switching. Moreover, the functionality high-sensitivity was integrated...
Bandwidth efficient coding schemes employing bit interleaved coded modulation and low complexity multiple turbo codes are investigated. The BER performance of these designs is shown to be superior to bit interleaved coded modulation schemes using conventional turbo codes.
This paper presents a novel five level polibinary signaling modulation and experimentally demonstrates 10 Gbit/s generation and transmission up to 20 Km utilizing only 1.8GHz bandwidth. OCIS codes: (060.4510) Optical Communications; (060.4080) Modulation.
We demonstrate an optical transmitter based on dynamic optical arbitrary waveform generation (OAWG) which is capable of creating high-bandwidth (THz) data waveforms in any modulation format using the parallel synthesis of multiple coherent spectral slices. As an initial demonstration, the transmitter uses only 5.5 GHz of electrical bandwidth and two 10-GHz-wide spectral slices to create 100-ns ...
In this paper an Importance Sampling technique is proposed to achieve blind equalizer and detector for chaotic communication systems. Chaotic signals are generated with dynamic nonlinear systems. These signals have wide applications in communication due to their important properties like randomness, large bandwidth and unpredictability for long time. Based on the different chaotic signals prope...
In this paper, by including Raman scattering in the coupled-mode equations, the scalar modulation instability in photonic crystal fibers is investigated. The evolution of the pump, Stokes and anti-Stokes waves along the fiber as well as the conversion efficiency for two cases, with and without Raman effect, are studied. The effect of anti-Stokes seed and the pump depletion on the evolution of S...
We demonstrate DML-based net 325-Gb/s at back-to-back and 321.24-Gb/s after 2-km standard single-mode fiber transmissions for >300-Gbps/? short-reach optical interconnects. Our rate performance denotes an increase of ?34% compared to our previous works, while the pre-FEC rates are >400 Gbps. The DML transmitter is based on a PPR-enhanced, >100-GHz-bandwidth DML, fabricated by novel membrane-III...
Fast and efficient light generation transport are at the heart of modern on-chip optical communication information processing technologies. Next sources must have a high modulation bandwidth low energy consumption while maintaining small footprint to be competitive. Enabled by metal-cladded nanocavities, fast subwavelength emitters in form both lasers LEDs been analytically or experimentally de...
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