An ultra-high-speed photonic temporal differentiator using cascaded SOI microring resonators

Hu, Yingtao; Zhang, Liang; Xiao, Xi; Li, Zhiyong; Li, Yuntao; Chu, Tao; Su, Yikai; Yu, Yude; Yu, Jinzhong

doi:10.1088/2040-8978/14/6/065501

Cited by 26 publications

(10 citation statements)

References 22 publications

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“…4). Here, the deviations of the two side-lobes of the experimental results can be attributed to two main reasons: 1) the imperfect parabola curve of the notch profile, which may induce fraction-order differentiations [10]; 2) the limited 3-dB bandwidth of the parabola-like notch at the resonance wavelength [12], [14].…”

Section: Experimental Setup and Resultsmentioning

confidence: 99%

A High-Speed Second-Order Photonic Differentiator Based on Two-Stage Silicon Self-Coupled Optical Waveguide

Zhang

Yin

et al. 2014

IEEE Photonics J.

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In this paper, we propose and demonstrate an all-optical second-order differentiator based on a two-stage self-coupled optical waveguide on a silicon-on-insulator platform. The transmission spectrum of the fabricated device has a parabola-like filtering notch with a 3-dB bandwidth of up to $100 GHz and a depth of $12 dB. Experiments are carried out for 10-, 20-, and 40-Gb/s optical time-domain multiplexing (OTDM) picosecond pulse trains, and the second-order differentiations are achieved using the fabricated device.Index Terms: High speed, second-order differentiator, silicon, two-stage self-coupled optical waveguide (TS-SCOW).

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Section: Experimental Setup and Resultsmentioning

confidence: 99%

A High-Speed Second-Order Photonic Differentiator Based on Two-Stage Silicon Self-Coupled Optical Waveguide

Zhang

Yin

et al. 2014

IEEE Photonics J.

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“…Bragg gratings [19,20] , long-period fiber gratings [2,21] , interferometers [16,22] , SOAs [14] , and silicon integrated waveguides [15,16,23,24] . It is noticed that most of these aforementioned schemes were not versatile and showed a sole function.…”

Section: Introductionmentioning

confidence: 99%

Diversity of photonic differentiators based on flexible demodulation of phase signals

Zheng¹,

Dong²,

Lei³

et al. 2014

Chinese Phys. B

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We theoretically prove a multifunctional photonic differentiation (DIFF) scheme based on phase demodulation using two cascaded linear filters. The photonic DIFF has a diversity of output forms, such as 1 st order intensity DIFF, 1 st order field DIFF and its inversion, 2 nd order field DIFF, dependent on the relative shift between the optical carrier and the filter's resonant notches. As a proof, we also experimentally demonstrate the DIFF diversity using a phase modulator and two delay interferometers (DIs). The calculated average deviation is less than 7% for all DIFF waveforms. Our schemes show the advantages of flexible DIFF functions and forms, which may have different optical applications. For example, high order field differentiators can be used to generate complex temporal waveforms. And intensity differentiators are useful for ultra-wideband pulse generation.

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“…Power-efficient and bidirectional tunable filters covering a wide wavelength range are highly desired in many application areas including wavelength multiplexed optical networks, optical spectroscopy, and optical sensing, among others. Over the years there has been much research effort on the development of optical filters on various PIC platforms: silica planar lightwave circuits (PLCs) for wavelength multiplexing [1,2], InP monolithic platform for wideband tunable lasers [3,4], silicon on insulator (SOI) platform for signal processing [5,6], photonic crystal, and subwavelength grating platform for ultracompact photonic-circuit design [7,8], etc. On the polymer-based PLC platform, power-efficient thermo-optical tunable filters have been demonstrated, thanks to the unique features of the polymer material, which possesses high thermo-optic coefficient (TOC) and low thermal conductivity at the same time [9,10].…”

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confidence: 99%

301-nm wavelength tunable differentially driven all-polymer optical filter

et al. 2014

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An optical filter based on all-polymer grating-assisted directional coupler is demonstrated. The wavelength tuning is differentially driven. The heater-electrodes created on the sidewalls of the polymer ridge can either blue- or red-shift the central wavelength. A total tuning range of 301 nm is achieved experimentally. The maximal local temperature gradient introduced across the coupler region is only 55°C-68°C. The filter is also insensitive to uniform ambient temperature change. Central wavelength jitter of ±3 nm is observed when the chip holder temperature cycles between 20°C and 80°C.

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An ultra-high-speed photonic temporal differentiator using cascaded SOI microring resonators

Cited by 26 publications

References 22 publications

A High-Speed Second-Order Photonic Differentiator Based on Two-Stage Silicon Self-Coupled Optical Waveguide

A High-Speed Second-Order Photonic Differentiator Based on Two-Stage Silicon Self-Coupled Optical Waveguide

Diversity of photonic differentiators based on flexible demodulation of phase signals

301-nm wavelength tunable differentially driven all-polymer optical filter

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