Photonic crystal fiber modulator based on surface plasmon resonance

Qu, Junshuai; Xu, Jun; Li, Jing; Li, Pei; He, Kai; Jiao, Z.; Wang, Jianshuai; Ning, Tigang

doi:10.1016/j.ijleo.2022.169691

Cited by 2 publications

(1 citation statement)

References 22 publications

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“…The evanescent field, i.e., surface plasmon polariton (SPP) can be excited at the metal surface to transfer the energy from core mode to SPP mode [11]. In recent years, SPR-PCFs have been used to polarization splitters, modulators, sensors, and filters [12][13][14][15][16]. These devices are widely used in environmental monitoring, medical medicine, biochemical sensing and many other fields [17,18].…”

Section: Introductionmentioning

confidence: 99%

A grating-modified broadband D-type photonic crystal fiber polarization filter

Wang,

Liu,

Yan

et al. 2024

Phys. Scr.

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In this paper, a D-type grating-modified broadband photonic crystal fiber polarization filter based on surface plasmon resonance is proposed. The asymmetric design of D-type photonic crystal fiber is helpful to achieve single-mode polarization filtering, and grating can increase the coupling between the core mode and the SPP mode and thus increase the constraint loss. From our simulation results, it can be seen that the applicable bandwidth range can easily reach 1 μm. At the communication wavelength of 1750 nm, the calculated constraint losses of x-polarized and y-polarized core modes are 4.2526 dB cm−1 and 1491.8 dB cm−1, respectively, and the crosstalk is up to 1292 dB. The proposed grating-modified of photonic crystal fiber has achieved good filtering effect in the near-infrared band, and even extended to the mid-infrared band.

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Section: Introductionmentioning

confidence: 99%

A grating-modified broadband D-type photonic crystal fiber polarization filter

Wang,

Liu,

Yan

et al. 2024

Phys. Scr.

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Compact plasmon modulator based on the spatial control of carrier density in indium tin oxide

Hu,

Yang,

Zhou

et al. 2023

Appl. Opt.

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To keep pace with the demands of semiconductor integration technology, a semiconductor device should offer a small footprint. Here, we demonstrate a compact electro-optic modulator by controlling the spatial distribution of carrier density in indium tin oxide (ITO). The proposed structure is mainly composed of a symmetrical metal electrode layer, calcium fluoride dielectric layer, and an ITO propagating layer. The carrier density on the surface of the ITO exhibits a periodical distribution when the voltage is applied on the electrode, which greatly enhances the interaction between the surface plasmon polaritons (SPPs) and the ITO. This structure can not only effectively improve the modulation depth of the modulator, but also can further reduce the device size. The numerical results indicate that when the length, width, and height of the device are 14 µm, 5 µm, and 8 µm, respectively, the modulation depth can reach 37.1 dB at a wavelength of 3.66 µm. The structure can realize a broadband modulation in theory only if we select a different period of the electrode corresponding to the propagating wavelength of SPPs because the modulator is based on the scattering effect principle. This structure could potentially have high applicability for optoelectronic integration, optical communications, and optical sensors in the future.

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Photonic crystal fiber modulator based on surface plasmon resonance

Cited by 2 publications

References 22 publications

A grating-modified broadband D-type photonic crystal fiber polarization filter

A grating-modified broadband D-type photonic crystal fiber polarization filter

Compact plasmon modulator based on the spatial control of carrier density in indium tin oxide

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