Conventional electronic processors,which are the mainstream and almost invincible hardware for computation,are approaching their limits in both computational power and energy efficiency,especially in large-scale matri...
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Conventional electronic processors,which are the mainstream and almost invincible hardware for computation,are approaching their limits in both computational power and energy efficiency,especially in large-scale matrix *** combining electronic,photonic,and optoelectronic devices and circuits together,silicon-based optoelectronic matrix computation has been demonstrating great capabilities and *** computation is one of the few general-purpose computations that have the potential to exceed the computation performance of digital logic circuits in energy efficiency,computational power,and ***,electronic processors also suffer from the tremendous energy consumption of the digital transceiver circuits during high-capacity data *** review the recent progress in photonic matrix computation,including matrix-vector multiplication,convolution,and multiply–accumulate operations in artificial neural networks,quantum information processing,combinatorial optimization,and compressed sensing,with particular attention paid to energy *** also summarize the advantages of siliconbased optoelectronic matrix computation in data interconnections and photonic-electronic integration over conventional optical computing *** toward the future of silicon-based optoelectronic matrix computations,we believe that silicon-based optoelectronics is a promising and comprehensive platform for disruptively improving general-purpose matrix computation performance in the post-Moore’s law era.
Dense waveguide arrays with low crosstalk and ultra-broadband remain a vital issue for chip-scale integrated photonics. However, the sub-wavelength regime of such devices has not been adequately explored in practice. ...
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Based on an accurate model for the relationship between refractive indices and wavelengths in germanium-doped fibers, a weakly-coupled low-chromatic dispersion (CD) FMF is designed and fabricated with CD values lying ...
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We propose an integrated W-band transmitter enabled by an integrated dual-mode distributed feedback(DFB)laser and cascaded silicon photonic microring modulators for next-generation wireless communication.10 Gb/s error...
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We propose an integrated W-band transmitter enabled by an integrated dual-mode distributed feedback(DFB)laser and cascaded silicon photonic microring modulators for next-generation wireless communication.10 Gb/s error-free intensity modulation and direct detection W-band transmission are achieved in experiments by using the dual-mode DFB laser and two free-running ***,we conduct an experiment of dual-carrier modulation based on cascaded microring modulators,achieving 3 dB signal-to-noise ratio improvement and better signaling integrity for wireless *** proposed photonic integrated W-band transmitter will be a viable solution for a high-speed and low-power wireless communicationsystem.
We demonstrate a novel and highly stable femtosecond fiber laser at a repetition rate of 840 MHz. Because the laser components are bonded on a silica glass, the repetition rate of the free running laser drifts within ...
We demonstrate a novel and highly stable femtosecond fiber laser at a repetition rate of 840 MHz. Because the laser components are bonded on a silica glass, the repetition rate of the free running laser drifts within ...
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We propose a silicon multi-functional photonic processing chip for multiply-accumulate computation (MAC), which is capable for high-speed data encoding and flexible weight control. Experimental results verify a 6-bit ...
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ISBN:
(纸本)9798350369311
We propose a silicon multi-functional photonic processing chip for multiply-accumulate computation (MAC), which is capable for high-speed data encoding and flexible weight control. Experimental results verify a 6-bit MAC precision and image convolution operation.
Integrated optical nonlinearities have spawned many new technologies such as optical parametric oscillators and microcombs. Despite remarkable achievements, optical parametric oscillation (OPO) and microcomb generatio...
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ISBN:
(数字)9798350379266
ISBN:
(纸本)9798350379273
Integrated optical nonlinearities have spawned many new technologies such as optical parametric oscillators and microcombs. Despite remarkable achievements, optical parametric oscillation (OPO) and microcomb generation remain challenging for foundry-available silicon photonics. Silicon-photonic platform provides mature CMOS manufacturing process and relatively high nonlinear coefficient. However, the nonlinear absorption at near-infrared telecommunication band hinders the effective nonlinear response on silicon photonics. In addition, the 220 nm thick Si layer is unsuitable for anomalous dispersion waveguides, which is necessary for OPO process. In this work, a concentric microresonator with the PIN doping structure is designed to solve these two problems. Under reverse bias on the designed PIN structure, the generated free carriers are effectively migrated to weaken the free carrier absorption. Local anomalous dispersion is induced by the designed concentric structure. optical parametric oscillation is theoretically analyzed and 10 OPO sidebands are experimentally generated with a single pump. Our design verifies the ability of dispersion engineered nonlinear oscillators in C-band on foundry-available silicon photonic platform.
An ultrahigh-Q compact silicon racetrack resonator based on multimode waveguide bends (MWBs) is proposed and demonstrated. The MWB is defined by a combination of cubic and circular curves. The free spectral range (FSR...
An ultrahigh-Q compact silicon racetrack resonator based on multimode waveguide bends (MWBs) is proposed and demonstrated. The MWB is defined by a combination of cubic and circular curves. The free spectral range (FSR) is measured to be 0.96 nm with an intrinsic Q-factor as high as 1.99 × 10 6 .
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