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Article
Open AccessEmpowering high-dimensional optical fiber communications with integrated photonic processors
Mode-division multiplexing (MDM) in optical fibers enables multichannel capabilities for various applications, including data transmission, quantum networks, imaging, and sensing. However, high-dimensional opt...
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Article
Open AccessScalable integrated two-dimensional Fourier-transform spectrometry
Integrated spectrometers offer the advantages of small sizes and high portability, enabling new applications in industrial development and scientific research. Integrated Fourier-transform spectrometers (FTS) ...
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Chapter and Conference Paper
Two Modes Unscrambling Using a Single Micro-Ring Resonator
We propose and demonstrate the use of one single micro-ring resonator (MRR) for unitary matrix operations. We proposed that a single MRR with two thermal tunable phase shifters can be used for 2 × 2 unitary co...
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Chapter and Conference Paper
High-Visibility Interference for Time Bin Encoded Entanglement on Silicon Integrated Platform
Time bin entangled photon pairs are robust against transmission fluctuations and suitable for long-distance quantum entanglement distribution. Here we report the first monolithically integrated silicon time-bi...
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Chapter and Conference Paper
A Photonic Convolution Processor Based on Matched Pair of Arrayed Waveguide Gratings
We demonstrate a photonic convolution processor that uses the spectral shifting in output waveguides for adjacent input waveguides of an arrayed waveguide grating to implement the convolution sliding operation...
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Article
Open AccessBreaking the resolution-bandwidth limit of chip-scale spectrometry by harnessing a dispersion-engineered photonic molecule
The chip-scale integration of optical spectrometers may offer new opportunities for in situ bio-chemical analysis, remote sensing, and intelligent health care. The miniaturization of integrated spectrometers f...
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Article
Open AccessBroadband high-Q multimode silicon concentric racetrack resonators for widely tunable Raman lasers
Multimode silicon resonators with ultralow propagation losses for ultrahigh quality (Q) factors have been attracting attention recently. However, conventional multimode silicon resonators only have high Q fact...
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Chapter
Subwavelength Silicon Photonics
Subwavelength gratings refer to periodic structures that have a period less than half the wavelength of light in the material so that no Bragg diffraction mode is supported. Instead, the light will propagate a...
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Article
Open AccessHigh-dimensional communication on etchless lithium niobate platform with photonic bound states in the continuum
Photonic bound states in the continuum (BICs) have been exploited in various systems and found numerous applications. Here, we investigate high-order BICs and apply BICs on an integrated photonic platform to h...
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Article
Pulse transit time based respiratory rate estimation with singular spectrum analysis
Respiratory rate (RR) is an important vital sign which can be difficult to measure accurately and unobtrusively in routine clinical practice. Pulse transit time (PTT), on the other hand, is unobtrusive to coll...
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Article
Open AccessPulse Transit Time Based Continuous Cuffless Blood Pressure Estimation: A New Extension and A Comprehensive Evaluation
Cuffless technique enables continuous blood pressure (BP) measurement in an unobtrusive manner, and thus has the potential to revolutionize the conventional cuff-based approaches. This study extends the pulse ...
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Article
Open AccessUltraviolet optomechanical crystal cavities with ultrasmall modal mass and high optomechanical coupling rate
Optomechanical crystal (OMC) cavities which exploit the simultaneous photonic and phononic bandgaps in periodic nanostructures have been utilized to colocalize, couple, and transduce optical and mechanical res...
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Article
Stabilization of a multiwavelength erbium-doped fiber laser using a nonlinear silicon waveguide
We propose and demonstrate a multiwavelength erbium-doped fiber laser stabilized by four-wave mixing (FWM) in a nonlinear silicon-on-insulator (SOI) waveguide. The optical gain was provided by an erbium-doped ...
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Article
High-responsivity graphene/silicon-heterostructure waveguide photodetectors
Graphene-based photonic devices, such as ultrafast photodetectors, optical modulators and tunable surface plasmon polariton devices, have experienced rapid development in recent years1,2,3,4,5,6 because they bene...
