Ultrashort and Low-Loss Polarization Rotators Utilizing Hybrid Plasmonic-Dielectric Couplers

Yin, Mei; Deng, Qingzhong; Li, Yanping; Wang, Xingjun; Li, Hongbin

doi:10.1109/lpt.2014.2365294

Cited by 10 publications

(3 citation statements)

References 19 publications

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“…Figure 1 shows the device, which is based on a plasmonicdielectric coupler structure. Similar structures have been recently proposed to develop a directional coupler [20] and a polarization splitting and rotating device [21] showing in both cases ultra-compact lengths and IL below 0.5 dB.…”

Section: Device Design and Simulationmentioning

confidence: 75%

“…The width of the hybrid waveguide is w H and the thickness of the silica layer and the VO 2 layer are h SiO 2 and h VO 2 respectively. Mode coupling between the waveguides requires that their modes have the same effective refractive index to satisfy the phase matching condition [20,21]. Therefore, for the insulating phase (steady conditions), the effective refractive index of the TM input mode must have the same value as the TE mode of the hybrid waveguide.…”

Section: Device Design and Simulationmentioning

confidence: 99%

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Ultra-compact electro-absorption VO₂–Si modulator with TM to TE conversion

Diana

Juan

Escutia

et al. 2017

J. Opt.

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An ultra-compact (6 μm length) electro-absorber modulator with transverse magnetic (TM) to transverse-electric (TE) conversion is proposed. The device performance is controlled by means of the semiconductor-to-metal transition of the vanadium dioxide. For the insulating state, the device performs as a TM–TE converter with insertion losses of 0.3 dB and extinction ratio of 36 dB at a wavelength of 1.55 μm. Changing to the metallic state, the TE generated component is attenuated due to the increase of losses in the VO2 and the mode mismatch. This electro-absorber modulator shows a broadband operation with an extinction ratio higher than 10 dB and insertion losses below 0.5 dB for a range of 60 nm covering the whole C-band.

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Section: Device Design and Simulationmentioning

confidence: 75%

Section: Device Design and Simulationmentioning

confidence: 99%

Ultra-compact electro-absorption VO₂–Si modulator with TM to TE conversion

Diana

Juan

Escutia

et al. 2017

J. Opt.

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“…This is not good when one tries to realize polarization-insensitive PICs. However, on the other hand, it is very helpful for designing ultrasmall polarization-handling devices, including polarizers [ 18 , 19 , 20 , 21 , 22 , 23 , 24 ], polarization-beam splitters (PBS) [ 25 , 26 , 27 , 28 , 29 , 30 , 31 ], as well as polarization rotators [ 32 , 33 , 34 , 35 , 36 ], which are very useful for various applications with polarization handling [ 37 ]. This will be reviewed in Section 3 .…”

Section: Introductionmentioning

confidence: 99%

Utilization of Field Enhancement in Plasmonic Waveguides for Subwavelength Light-Guiding, Polarization Handling, Heating, and Optical Sensing

Dai

Zhang

2015

Materials

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Plasmonic nanostructures have attracted intensive attention for many applications in recent years because of the field enhancement at the metal/dielectric interface. First, this strong field enhancement makes it possible to break the diffraction limit and enable subwavelength optical waveguiding, which is desired for nanophotonic integrated circuits with ultra-high integration density. Second, the field enhancement in plasmonic nanostructures occurs only for the polarization mode whose electric field is perpendicular to the metal/dielectric interface, and thus the strong birefringence is beneficial for realizing ultra-small polarization-sensitive/selective devices, including polarization beam splitters, and polarizers. Third, plasmonic nanostructures provide an excellent platform of merging electronics and photonics for some applications, e.g., thermal tuning, photo-thermal detection, etc. Finally, the field enhancement at the metal/dielectric interface helps a lot to realize optical sensors with high sensitivity when introducing plasmonic nanostrutures. In this paper, we give a review for recent progresses on the utilization of field enhancement in plasmonic nanostructures for these applications, e.g., waveguiding, polarization handling, heating, as well as optical sensing.

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