A5020367290- Advanced Photonic Communication Systems
- Optical Network Technologies
- Photonic and Optical Devices
- Semiconductor Lasers and Optical Devices
- Advanced Fiber Laser Technologies
- Millimeter-Wave Propagation and Modeling
- Radio Frequency Integrated Circuit Design
- Advanced Optical Network Technologies
- Full-Duplex Wireless Communications
- Semiconductor Quantum Structures and Devices
- graph theory and CDMA systems
- Quantum optics and atomic interactions
- Advanced MIMO Systems Optimization
- Quantum Information and Cryptography
- PAPR reduction in OFDM
- Plant Surface Properties and Treatments
- Power Line Communications and Noise
- GaN-based semiconductor devices and materials
NeoPhotonics (United States)
2015-2023
Lumentum (United States)
2023
National Yang Ming Chiao Tung University
2008-2013
Corning (United States)
2009-2013
National Sun Yat-sen University
2011
Beijing University of Technology
2007-2009
University of California System
2007
This work demonstrates the feasibility of optical millimeter-wave signal generation using frequency 12-tupling. Optical with two sixth-order sidebands are generated quadrupling along four-wave-mixing. 210- and 120-GHz two-tone signals carrier undesired harmonic distortion suppression ratios 20 30 dB experimentally demonstrated. The proposed system provides an attractive method for applications such as up-conversion in radio-over-fiber (RoF) communication systems at band, phase-array...
Coherent transmission has been the standard for fiber optic communications 100 Gbps rates and higher at distances of 40 km above more than a decade. In this paper, we review continuing role coherent systems data center interconnect (DCI) networks 400 Gbps, 800 rates, including 1.6 3.2 Tbps. We market factors driving demand DCI solutions today over next five years, with attention to transition an IP DWDM (IPoDWDM) architecture. Implications small form factor, multi-vendor interoperable, low...
This work proposes a cost-effective, continuously tunable and filterless optical millimeter-wave (MMW) signal generation employing frequency octupling. Optical MMW signals with 30-dB undesired sideband suppression ratios can be obtained. Since no filtering is required, the proposed system readily implemented in wavelength-division-multiplexing (WDM) systems. V-band 60-GHz W-band 80-GHz are experimentally demonstrated. Because of high ratio, waveform 50% duty cycle observed. The...
To the best of our knowledge, a novel photonic architecture to generate vector signals at microwave/millimeter-wave bands employing an optical frequency quadrupling technique based on external dual-parallel modulator is proposed for first time. A 312.5 MSym/s quadruple phase-shift keying signal 25 GHz experimentally demonstrated using properly precoding driving 6.25 GHz, and power penalty negligible following 50 km single-mode fiber transmission.
We demonstrate a 40-Gb/s OFDM radio-over-fiber system with 10-m wireless distance at 60-GHz by employing simple IM-DD modulation DSP-based bit-loading and I/Q imbalance compensation. Spectral efficiency of 6-bit/s/Hz was achieved BER 9⨉10-4.
This work presents an optical up-conversion system with frequency quadrupling for wavelength-division-multiplexing (WDM) communication systems using a dual-parallel Mach-Zehnder modulator without filtering. Four-channel 1.25-Gb/s wired fiber-to-the-x (FTTx) and wireless radio-over-fiber (RoF) signals are generated transmitted simultaneously. Moreover, the decline in receiver sensitivities due to bias drifts is also investigated. Receiver power penalties of 20-GHz up-converted WDM baseband...
This study proposes a full duplex 60-GHz band radio-over-fiber (RoF) link using modified tandem single sideband (TSSB) modulation scheme with frequency doubling. Based on the TSSB scheme, no dispersion induced fading is observed; high spectral efficiency vector signal can be utilized; and wavelength reuse also achieved. Both carrier 8-QAM QPSK-OFDM signals for down-link transmissions are experimentally demonstrated. After transmission of 50-km SSMF, significant receiver power penalties...
This work demonstrates the feasibility of generation an RF direct-detection vector signal using optical in-phase/quadrature-phase (I/Q) upconversion. The advantage proposed transmitter is that no electrical mixer needed to generate signal. Therefore, I/Q data signals are processed at baseband transmitter, which independent carrier frequency generated A 10 Gb/s 16 quadrature amplitude modulation experimentally demonstrated. Following transmission over a 50 km single-mode fiber, power penalty...
This study presents a novel hybrid access network for 60-GHz wireless and wireline applications using frequency quadrupling technique. Both 1.2-Gb/s eight phase-shift keying 1.25-Gb/s quadruple radio-frequency (RF) signals radio-over-fiber (RoF) links are demonstrated. A baseband (BB) on–off (OOK) signal fiber-to-the- <formula formulatype="inline" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex Notation="TeX">$x$</tex></formula> services is...
Record wireless data transmission of 31.4 Gbps within 7 GHz license-free band at 60 is experimentally demonstrated using adaptive bit-loading OFDM modulation. Adaptive also enables extended fiber distances beyond 5km.
We show that optical up-conversion performs better than electrical in simple IMDD-based 60GHz radio-over-fiber links. Feed-forward equalization improved the performances of both systems, enabling error-free transmission 4 Gbps over 500m single-mode fiber.
This letter experimentally demonstrated a hybrid access network which supports both radio-over-fiber and fiber-to-the-x systems. A 20-GHz radio-frequency (RF) 312.5-MSymbol/s M-ary phase-shift keying (PSK) signal baseband (BB) 1.25-Gb/s on-off are simultaneously generated transmitted over an identical distributed infrastructure. The wired BB is compatible with the existing passive optical (PON) system, wireless RF PSK can also share same proposed system has no fading issue, narrowband filter...
Record 50-Gb/s wireless signal transmission over 4 m is experimentally demonstrated using a 2×2 MIMO Radio-over-Fiber system at 60 GHz. spatial multiplexing and 16-QAM OFDM modulation were used to achieve high combined spectral efficiency of up-to 8 b/s/Hz.
Using a colorless weak-resonant-cavity (WRC) FPLD injected by centralized light source, we have experimentally demonstrated superior performance of 20-Gbps uplink transmission in WDM-PON. Even though the typical modulation bandwidth WRC-FPLD is only ~1.25 GHz, using spectrally-efficient 32-QAM OFDM or SC-FDE modulation, signals can achieve FEC limit after 25-km dispersion-uncompensated single-mode fiber transmission. Because advantage lower PAPR, outperform with fixed format proposed system;...
Multiple-input-multiple-output (MIMO) technique for wireless communications is extensively used these days, especially to increase the spectral efficiency of new communication systems like LTE, WiMAX, etc. MIMO in combination with robust modulation techniques orthogonal frequency division multiplexing (OFDM) provides a good solution high data rate links. In this paper, performance 60 GHz OFDM radio over fiber link analyzed. System system different antenna spacing also studied. Using optimum...
This letter experimentally demonstrates a multiservices hybrid access network integrated radio-over-fiber and fiber-to-the-home systems which share the same distributed architecture. A 1.25-Gb/s baseband signal 14.375-GHz radio-frequency (RF) with 625-Mb/s binary phase-shift keying data are generated transmitted employing commercially available dual-electrode Mach-Zehnder modulator. The proposed scheme offers better performance, has no RF fading issue, can carry vector signals, requires...
We experimentally demonstrated the transmission performance of orthogonal frequency-division-multiplexing (OFDM) signals in a 60-GHz radio-over-fiber system over up to 100-km standard single-mode fiber employing an adaptive bit-loading algorithm. Considering dispersion-induced phase noise, maximum capacities after different distances are investigated with and without noise suppression (PNS) algorithm for first time. When distributed-feedback (DFB) laser linewidth 1.3~4.1 MHz is modulated...
Get PDF Email Share with Facebook Tweet This Post on reddit LinkedIn Add to CiteULike Mendeley BibSonomy Citation Copy Text A. Ng'oma, P. Shih, J. George, F. Annunziata, M. Sauer, C. Lin, W. Jiang, Chen, and S. Chi, "21 Gbps OFDM Wireless Signal Transmission at 60 GHz Using a Simple IMDD Radio-over-Fiber System," in Optical Fiber Communication Conference, OSA Technical Digest (CD) (Optica Publishing Group, 2010), paper OTuF4. Export BibTex Endnote (RIS) HTML Plain alert Save article
Feature Issue on Optical Code Division Multiple AccessWe overview and summarize the progress of spectral phase encoded time spreading (SPECTS) optical code division multiple access (O-CDMA) technology. Recent included a demonstration 320 Gbit/s(32-user×10 Gbit/s) all-optical passive network testbed based SPECTS O-CDMA technology theoretical prediction efficiency at 100% above. In particular, InP-based integrated photonics allows implementation transmitters receivers monolithically chip. The...
Through theoretical analysis and simulation, we investigate the system impact due to a sinusoidal jitter tone resultant local oscillator (LO) laser linewidth requirement in ultrahigh baud rate long distance coherent optical systems. We also carried out experiments 64 Gbaud, dual-polarization (DP)-16 QAM systems verify simulation. have obtained interference tolerance mask qualify LO lasers. A with frequency lower than '1 MHz has higher since it generally causes constant or phase shift, which...
We demonstrated near-ballistic uni-traveling-carrier photodiode based broadband photonic transmitter-mixers with quasi-Yagi radiators fed horn antennas. 100GHz wireless transmission date rate as high 12.5-Gb/s via bias modulation under photocurrent (20mA) has been achieved.
This work demonstrates the feasibility of a full duplex Radio-over-fiber (RoF) link employing multi-level OFDM signal via single-electrode Mach-Zehnder modulator and wavelength reuse for uplink utilizing reflective semiconductor optical amplifier (RSOA). A High spectral efficiency 5-Gb/s 16-QAM with frequency multiplication RoF downstream is demonstrated, negligible penalty achieved after 25-km standard single mode fiber transmission. Furthermore, 1.25-Gb/s OOK RSOA upstream also...