Thermo optic phase shifter
As one of the basic tuning devices, the thermo-optic phase shifter (TOPS) plays an important role in all these applications. A TOPS with the merits of easy fabrication, low power consumption, small thermal time constant, low insertion loss, small footprint, and low crosstalk, is needed to improve the performance … Visa mer For a basic TOPS structure, a resistive heater of doped silicon or silicide is placed on both sides of a waveguide. At the same time, a metal resistive heater can be fabricated above the … Visa mer Due to the fact that the area of heat flow is much larger than the cross-section area of the waveguide, TOPS devices with folded waveguides have been … Visa mer The thermal conductivity of air, at 0.31 W/(m·K), is almost three orders of magnitude smaller than that of silicon, 150 W/(m·K). An air-gap trench and silicon substrate undercut post-processing have been chosen to reduce … Visa mer As is well known, there is always a trade-off between the tuning efficiency and thermal time constant of TOPS. To improve the tuning efficiency of TOPS without sacrificing the … Visa mer Webb4 juni 2024 · We introduce a thermo-optic phase shifter (TOPS) array architecture with independent phase control of each phase shifter for large-scale and high-density photonic integrated circuits with...
Thermo optic phase shifter
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WebbWe demonstrate a four-pass thermo-optic phase shifter using wave-vector and polarization multiplexing. The experiment shows that the structure reduces the power … Webb5 maj 2014 · We design a resistive heater optimized for efficient and low-loss optical phase modulation in a silicon ... Efficient, compact and low loss thermo-optic phase shifter in silicon Opt Express. 2014 May 5;22(9):10487-93. doi ... The device features a phase-shifting efficiency of 24.77 ± 0.43 mW/π and a -3 dB modulation ...
WebbWe demonstrate a 1×64 optical phased array (OPA) based on a silicon on insulator (SOI) platform with integrated silicon nitride. The input port of the OPA is fabricated using a silicon nitride waveguide due to its advantage of allowing more optical power. The phase shifter is a silicon waveguide with heater because of the higher thermo-optic coefficient … WebbAbstract. We experimentally demonstrate a compact and power efficient ( Pπ = 21 mW) silicide-based thermo-optic phase shifter of length 96 µm for photonic neural networks. …
Webb15 mars 2024 · We present a thermo-optic silicon phase shifter with integrated diode, which allows multiplexed access to heaters and reduces the number of pads to drive complex silicon photonics circuits. We also demonstrate that such heaters can be driven using digitally modulated signals, which increases the linearity of the phase shift … WebbAbstract We demonstrate a digital pre-emphasis technique for extending the modulation bandwidth of a thermo-optic phase shifter in silicon-on-insulator (SOI) CMOS. The electrical input to the phase shifter is pre-emphasized, increasing 3-dB optical modulation bandwidth 6.3 times from 8.1 kHz to 50.7 kHz. © 2024 The Author (s) PDF Article
WebbThermo-optic phase shifter (Heater) ¶. In this section, we will discuss how to implement the layout and the circuit model of the heater-based phase shifter. The operation …
suche framo pritscheWebb5 nov. 2024 · Even though the fabricated OSP chip has the potential to realize filter response beyond 50 GHz, the observed tuning range is limited by the efficiency of the thermo-optic phase-shifters, and the ... suche framoWebbAbstract A thermo-optic phase shifter is proposed and demonstrated by utilizing the high- Q resonance in high-index-contrast grating (HCG). The Q -factor up to ∼ 12000 is … painting rabbits in watercolorWebb29 juni 2024 · An optical switch with the designed thermo-optic phase shifter was fabricated and used to estimate the optical switching time. Switching time of several microseconds was obtained by normal pulse operation, and ultrafast optical switching of about 500 ns was realized by overdrive control. Export citation and abstract BibTeX RIS painting radiators adviceWebb14 juni 2024 · The design, fabrication, and characterization of low loss ultra-compact bends in high index (n = 3.1 at λ = 1550 nm) PECVD silicon rich silicon nitride (SRN) is demonstrated and utilized to realize efficient, small footprint thermo-optic phase shifter. Compact bends are structured into a folded waveguide geometry to form a rectangular … suche friseur privat nach hauseWebb26 okt. 2024 · Optical phase shifters constitute the fundamental building blocks that enable programmable photonic integrated circuits (PICs)—the cornerstone of on-chip classical and quantum optical technologies [1, 2]. Thus far, carrier modulation and thermo-optical effect are the chosen phenomena for ultrafast and low-loss phase shifters, … suche fortnite duo mateWebb2 jan. 2024 · Thermo-optic phase shifter based on hydrogen-doped indium oxide microheater Weiyu Tong, Erqi Yang, Yu Pang, Haobo Yang, Xin Qian, Ronggui Yang, Bin Hu, Jianji Dong, Xinliang Zhang Thermo-optic (TO) phase shifters are very fundamental units in large-scale active silicon photonic integrated circuits (PICs). painting rack