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Optical Carrier transmission rates

About: Optical Carrier transmission rates is a research topic. Over the lifetime, 2463 publications have been published within this topic receiving 33293 citations.


Papers
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Journal ArticleDOI
TL;DR: A light source centralized bidirectional passive optical network (PON) system based on multiband direct-detection optical orthogonal frequency division multiplexing downstream and quadrature phase-shift keying upstream is experimentally demonstrated.
Abstract: A light source centralized bidirectional passive optical network (PON) system based on multiband direct-detection optical orthogonal frequency division multiplexing (DDO-OFDM) downstream and quadrature phase-shift keying (QPSK) upstream is experimentally demonstrated. By introducing a simple optical single-side band (SSB) filter at the optical network unit (ONU), all the desired signal bands will be immune from the deleterious signal-signal beating interference (SSBI) noise with only single-end direct-detection scheme. An adaptive modulation configuration is employed to enhance the entire downstream throughput which results in a 150-Gbps downstream data rate with a single optical carrier. In the upstream direction, by recycling the clean downstream optical carrier, a 12.5 Gb/s QPSK format with coherent receiving mechanism in central office is adopted for better receiving sensitivity and dispersion tolerance. With the power enhancement by the long-reach PON architecture, the downstream splitting ratio can achieve as high as 1:1024.

16 citations

Journal ArticleDOI
TL;DR: It is shown that the receiver sensitivity can be improved by about 4 dB at a bit error rate (BER) of $1\times 10^{-3}$ after 100-km single mode fiber (SMF) transmission by using the proposed NOC-SSB-OFDM scheme compared with the traditional SSB- OFDM scheme.
Abstract: Receiver sensitivity can be improved by optical heterodyne reception. For our investigations, we implement a passive optical network (PON) to demonstrate the heterodyne reception scheme. In this paper, a novel non-optical carrier single-sideband orthogonal frequency division multiplexing (NOC-SSB-OFDM) scheme is proposed for intensity modulation and heterodyne detection-based passive optical networks (PONs). We study the effect of signal-signal beating interference (SSBI) for different guard bands (GBs), the line-width of the laser, and the carrier to signal power ratio (CSPR) on the performance of the proposed scheme. It is shown that the receiver sensitivity can be improved by about 4 dB at a bit error rate (BER) of 1 × 10 -3 after 100-km single mode fiber (SMF) transmission by using the proposed NOC-SSB-OFDM scheme compared with the traditional SSB-OFDM scheme.

16 citations

Journal ArticleDOI
TL;DR: In this article, phase-shift keying formats are investigated using a rigorous and physically consistent modeling framework that seamlessly combines solid-state physics with Maxwell wave theory through carrier-dependent material models.
Abstract: Higher-order digital modulation formats are demonstrated by electrically inducing free-carrier concentration changes in thin films of transparent conducting oxides, integrated into well-established silicon-photonic waveguiding architectures. The proposed near-infrared modulators employ as physical platforms the silicon-rib and silicon-slot waveguides, exploiting the highly dispersive and carrier-dependent epsilon-near-zero behavior of transparent conducting oxides to modulate the optical carrier. Advancing the existing studies on conventional amplitude modulation, phase-shift keying formats are investigated in this paper, using a rigorous and physically consistent modeling framework that seamlessly combines solid-state physics with Maxwell wave theory through carrier-dependent material models. The designed in-line modulators achieve $V_\pi L$ products in the order of 0.1 Vmm, two orders of magnitude lower than their respective all-silicon or lithium niobate counterparts, accompanied by an insertion loss of about $3~\mathrm {dB/\pi }$ . Switching speeds in the order of 50 GHz are feasible along with a potential for sub-pJ/symbol energy consumption, meeting the demands for on-chip optical modulation.

16 citations

Journal ArticleDOI
TL;DR: In this article, the authors used strain-compensated InAsP-GaInP multiple quantum wells at 1.32 µm wavelength for analog microwave fiber-optic link without amplification.
Abstract: High-efficiency electroabsorption waveguide modulators have been designed and fabricated using strain-compensated InAsP-GaInP multiple quantum wells at 1.32-/spl mu/m wavelength. A typical 200-/spl mu/m-long modulator exhibits a fiber-to-fiber optical insertion loss of 9 dB and an optical saturation intensity larger than 10 mW. The 3-dB electrical bandwidth is in excess of 20 GHz with a 50-/spl Omega/ load termination. When used in an analog microwave fiber-optic link without amplification, a RF link efficiency as high as -38 dB is achieved at 10 mW input optical carrier power. These analog link characteristics are the first reported using MQW electroabsorption waveguide modulators at 1.32 /spl mu/m.

16 citations

Patent
07 Feb 2000
TL;DR: In this paper, a signal transmission system has a number of wave division multiplex optical carriers linking a number switching units arranged in a closed ring network, and the carriers are amplified to compensate for loss and attenuation, but the ring gain must be less than unity to prevent unwanted signal oscillation.
Abstract: A signal transmission system has a number of wave division multiplex optical carriers linking a number of switching units arranged in a closed ring network The carriers are amplified to compensate for loss and attenuation, but the ring gain of each carrier must be less than unity to prevent unwanted signal oscillation An automatic gain control arrangement is operative for each optical carrier which is detected as being present at a switching unit, and the gain control is disabled for each carrier which is detected as being absent

16 citations

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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202322
202237
202168
2020134
2019156
2018141