搜索结果: 1-15 共查到“光学工程 modulator”相关记录76条 . 查询时间(0.125 秒)
224-Gb/s PDM-16-QAM Modulator and Receiver based on Silicon Photonic Integrated Circuits
224-Gb/s PDM-16-QAM Modulator Silicon Photonic Integrated Circuits
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2014/11/6
We demonstrate a coherent modulator and a receiver based on monolithicallyintegrated silicon photonic circuits, capable of modulating and detecting 224 Gb/s polarizationdivision-multiplexed 16-QAM. Th...
First Monolithic GaAs IQ Electro-optic Modulator, Demonstrated at 150 Gbit/s with 64-QAM
First Monolithic GaAs IQ Electro-optic Modulator 150 Gbit/s with 64-QAM
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2014/11/6
We report on the first experimental demonstration of a GaAs IQ-modulator. Data rates of up to 150 Gbit/s are generated using QPSK, 16-QAM, 32-QAM and 64-QAM on a single carrier and polarization.
Small-Form-Factor All-InP Integrated Laser Vector Modulator Enables the Generation and Transmission of 256-Gb/s PDM-16QAM Modulation Format
Small-Form-Factor All-InP Integrated Laser Vector Modulator Enables the Generation Transmission of 256-Gb/s PDM-16 QAM Modulation Format
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2014/11/6
We demonstrate, using a compact InP-based integrated assembly of a tunable laser and a double-nested Mach-Zehnder modulator, generation of Nyquist-prefiltered QPSK and 16-QAM signals at 32-Gbaud. We t...
Improved SPM Tolerance and Cost-Effective Phase-Modulation Duobinary Transmission over 230 km Standard Single-Mode Fiber Using a Single Mach-Zehnder Modulator
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2011/11/23
This letter proposes and experimentally demonstrates a cost-effective phase-modulation duobinary modulation scheme for improving self-phase modulation tolerance using a single modulator. Successful tr...
Simultaneous Generation of Baseband and Radio Signals Using Only One Single-Electrode Mach–Zehnder Modulator With Enhanced Linearity
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2011/11/23
We experimentally demonstrate a simultaneous generation of baseband (BB) and RF signals, using only one single-electrode Mach–Zehnder modulator (SD-MZM) based
on double-sideband with optical carrier ...
Generation of optical millimeter-wave (mm-wave) signal using a Mach–Zehnder modulator (MZM) based on double-sideband (DSB), single-sideband (SSB), and double-sideband with carrier suppression (DSBCS) modulation schemes have
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2011/11/18
Generation of optical millimeter-wave (mm-wave) signal using a Mach–Zehnder modulator (MZM) based on double-sideband (DSB), single-sideband (SSB), and double-sideband with carrier suppression (DSBCS) ...
Novel Optical Vector Signal Generation with Carrier Suppression and Frequency Multiplication Based on a Single-Electrode Mach-Zehnder Modulator
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2011/11/18
RADIO-OVER-FIBER (ROF) systems have attracted much interest for potential use in future broadband wireless communications. Essential to ROF systems is the ability to generate and transmit optical radi...
Generation of optical millimeter-wave signals and vector formats using an integrated optical I/Q modulator
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2011/11/18
Following the accelerated development of wireless communications, efficient and costeffective methods of generating and transmitting microwave and millimeter-wave signals are increasingly important. T...
WDM up-conversion employing frequency quadrupling in optical modulator
optical modulator simultaneous WDM millimeter-wave
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2011/11/17
Optical millimeter-wave generation and up-conversion are essential to Radio-over-Fiber (RoF) communication systems [1-7]. With the rapidly increasing bandwidth requirements for next generation multime...
A Consolidated Multi-rate Burst-Mode DPSK Transmitter Using a Single Mach-Zehnder Modulator
Phase modulation Free-space optical comm Optical communications
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2015/5/26
We demonstrate phase modulation, pulse carving, and burst-mode windowing in a single Mach-Zehnder modulator, significantly reducing size, weight, power, and complexity of prior three-modulator designs...
Novel Flexible-Format Optical Modulator with Selectable Combinations of Carrier Numbers and Modulation Levels Based on Silica-PLC and LiNbO 3 Hybrid Integration
Electro-optical Devices Waveguide Modulators Integrated optics devices
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2015/5/26
We devised a novel flexible-format optical modulator that can optically select optimum sets of carrier numbers and modulation levels according to transmission conditions. The modulator with PLC-LN hyb...
Multilevel Optical Modulator with PLC and LiNbO 3 Hybrid Integrated Circuit
Electro-optical devices Waveguide modulators
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2015/5/26
Optical modulators with a hybrid configuration of silica-PLCs and LiNbO 3 phase modulators are promising for advanced multilevel modulation formats. Modulators for OFDM-QPSK, 64QAM, and a selectable f...
25GHz Hybrid Silicon Mach-Zehnder Modulator using High-Speed Push-Pull Slotline Design
General Modulators
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2015/5/26
We demonstrate a hybrid silicon Mach-Zehnder modulator having a voltage-length product of 2.4 V-mm and chirp parameter of -0.75. This modulator also has a modulation bandwidth of 25 GHz.
Ultra-low-voltage Micro-ring Modulator Integrated with a CMOS Feed-forward Equalization Driver
Waveguide modulators Photonic integrated circuits
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2015/5/26
We present an all-CMOS micro-ring modulator packaged with a feed-forward equalization driver circuit, operating in charge-injection mode at 8 Gbps with a drive voltage of only 50 mVp-p and a power con...
Over 40 GHz Traveling-Wave Electroabsorption Modulator Based on Hybrid Silicon Platform
Integrated optoelectronic circuits Waveguide modulators
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2015/5/26
A hybrid silicon traveling-wave electroabsorption modulator has been demonstrated. 43 GHz bandwidth and over 10 dB static extinction ratio are achieved for a 100 μm long device.