Facility New, Photonics Lab, EE Dept, CUHK

$Diffractive waveguide grating coupler$

SEM images, zoom-in view and top view of the PVGC array.
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Measured results on the normalized generalized mutual information against the optical signal-to-noise ratio for different modulation formats and the associated constellation diagrams.
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Ultrafast BIC‐waveguide‐integrated graphene modulator.
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schematic of experimental setup with the two-chip method.
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Electro-optic modulation and mode (de)multiplexing were realized in the same lithium niobate chip.

The high-order bound states in the continuum were investigated in the photonic integrated circuits.
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Wavelength multicast of single-sideband OFDM signals enabled by temporal Talbot processing and cross-phase modulation.
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Setup for (a) photon-pair generation, (b) coincidence counts, and (c) time–energy entanglement
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schematic illustration of the hybrid PtSe2/Si3N4 photodetector, Raman spectra and the impulse response.
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System for Coherent Communication Testing

EBL system

Experimental setup for nanophotonics and optomechanics

Experimental setup for the measurement of system performance in optical processing.

Experimental setup for low-temperature device characterization

Fiber coupling

Graphene/Si-heterostructure waveguide PD

HUD patterns and polarizer

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