Ultracompact Electrooptic Silicon Modulator With Horizontal Photonic Crystal Slotted Slab

Qi, Biao; Yu, Ping; Li, Yubo; Zhou, Qiang; Jiang, Xiaoqing; Yang, Jianyi

doi:10.1109/lpt.2010.2044878

Cited by 11 publications

(4 citation statements)

References 17 publications

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“…Alternatively, thermo-optical effects allow the fabrication of smaller devices at the expense of longer time responses [2]. A further option employs electric fields in order to control the response of photonic devices by means of the electro-optic effect [3][4][5], leading to devices that are simultaneously fast and compact with the disadvantage of requiring the individual addressing of the regions to be tuned, which can become too difficult for complex architectures. A promising approach consists of using a surface acoustic wave (SAW) beam to modulate multiple ridge or slot waveguides (WGs) through the acousto-optical effect [6,7].…”

Section: Introductionmentioning

confidence: 99%

Synchronized photonic modulators driven by surface acoustic waves

et al. 2013

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Photonic modulators are one of the most important elements of integrated photonics. We have designed, fabricated, and characterized a tunable photonic modulator consisting of two 180 • -dephased output waveguide channels, driven by a surface acoustic wave in the GHz frequency range built on (Al,Ga)As. Odd multiples of the fundamental driven frequency are enabled by adjusting the applied acoustic power. A good agreement between theory and experimental results is achieved. The device can be used as a building block for more complex integrated functionalities and can be implemented in several material platforms.

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Section: Introductionmentioning

confidence: 99%

Synchronized photonic modulators driven by surface acoustic waves

et al. 2013

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“…The spectra shift is obtained by changing the EO polymer refractive index in the slot. As we know, the product is commonly used for the Mach-Zehnder intensity modulator [1], [13]. For comparison, the product of the proposed modulator is 0.28 mV cm, much smaller than those of the reported larger structures [1], [2], [5], [8], [10], [13].…”

Section: Analysis Of the Modulator With 1-d Spcncmentioning

confidence: 87%

Analysis of Electrooptic Modulator With 1-D Slotted Photonic Crystal Nanobeam Cavity

Qi¹,

Yu²,

Li³

et al. 2011

IEEE Photon. Technol. Lett.

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Abstract-A new nanocavity-based electrooptic modulator on silicon-on-insulator is proposed. This nanocavity is formed by a one-dimensional photonic crystal nanobeam cavity with a slot embedded. The slot lies in both the cavity and the distributed Bragg reflectors region. This results in an ultrasmall modal volume of 0.047 and a high -factor of . Another advantage of the structure is that polymers can be infiltrated into the slot. Accordingly, we rely on the fast and strong electrooptic effect of polymers, rather than on the free-carrier plasma dispersion effect of silicon. Analysis shows a modulator with a bandwidth of 86 GHz, a switching voltage of 0.2 V, and a length of only 14 m can be obtained.

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“…Conventional hole-defined and pillar-defined PhC waveguides defined in bi-planar horizontal-slot Si/low-n/Si structures have been proposed [35,36], but not yet experimentally demonstrated. There is currently no way to define a PCW on a double-SOI platform to couple from the high-n TE mode propagation observed in the entry wire waveguide to the low-n TM slotmode propagation in the PhC waveguide.…”

Section: Introductionmentioning

confidence: 99%

10 nm SiO2 TM Slot Mode in Laterally Mismatched Asymmetric Fin-Waveguides

et al. 2021

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In this paper we demonstrate that by breaking the left/right symmetry in a bi-planar double-silicon on insulator (SOI) photonic crystal (PhC) fin-waveguide, we can couple the conventionally used transverse-electric (TE) polarized mode to the transverse-magnetic (TM) polarization slot-mode. Finite difference time domain (FDTD) simulations indicate that the TE mode couples to the robust TM mode inside the Brillouin zone. Broadband transmission data shows propagation identified with horizontal-slot TM mode within the TE bandgap for fully mismatched fabricated devices. This simultaneously demonstrates TE to TM mode conversion, and the narrowest Si photonics SiO2 slot-mode propagation reported in the literature (10 nm wide slot), which both have many potential telecommunication applications.

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Ultracompact Electrooptic Silicon Modulator With Horizontal Photonic Crystal Slotted Slab

Cited by 11 publications

References 17 publications

Synchronized photonic modulators driven by surface acoustic waves

Synchronized photonic modulators driven by surface acoustic waves

Analysis of Electrooptic Modulator With 1-D Slotted Photonic Crystal Nanobeam Cavity

10 nm SiO2 TM Slot Mode in Laterally Mismatched Asymmetric Fin-Waveguides

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