We demonstrate a PLC splitter encoded by Bragg waveguide gratings with a wavelength interval of 4 nm and an adjustable reflectance of up to 40% using a femtosecond laser inscribing technique for passive optical networ...
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In this Letter,a four-channel silicon photonic mode-division-multiplexing(MDM)and wavelength-division multiplexing(WDM)transmitter chiplet is proposed over a 1.65 mm~2 footprint,utilizing add-drop micro-ring modulator...
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In this Letter,a four-channel silicon photonic mode-division-multiplexing(MDM)and wavelength-division multiplexing(WDM)transmitter chiplet is proposed over a 1.65 mm~2 footprint,utilizing add-drop micro-ring modulators to simultaneously achieve electro-optic modulation and two-wavelength multiplexing.A dual-mode grating coupler with a side-distributed Bragg reflector for equalized two-mode coupling is realized with high chip-to-fiber coupling efficiency,so as to support the MDM optical fiber interface.A high data rate of up to 4×56 Gbps signaling is experimentally demonstrated,featuring applications like 200G quad small form-factor pluggable(QSFP)transceivers and indicating significant potential for highdensity and large-capacity 3D co-packaged optical interconnects through flip-chip-based electronic-photonic packaging.
We built a mode-locked laser with a base frequency of 150 MHz, which can achieve 7th harmonic mode-locking up to 1.05 GHz by fine-tuning the polarization device in the cavity with high super mode suppression ratio ove...
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We present a state-of-the-art two-color laser demonstrating stability below 2.8E-17@1s. This laser is employed to generate microwave signals with the stability of 1E-14@1s, representing an unprecedented achievement ut...
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We propose a terahertz(THz)vortex emitter that utilizes a high-resistance silicon resonator to generate vortex beams with various topological *** the challenge of double circular polarization superposition resulting f...
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We propose a terahertz(THz)vortex emitter that utilizes a high-resistance silicon resonator to generate vortex beams with various topological *** the challenge of double circular polarization superposition resulting from the high refractive index contrast,we regulate the transverse spin state through a newly designed second-order grating partially etched on the waveguide’s top *** reflected wave can be received directly by a linearly polarized antenna,simplifying the *** from the tuning feature,a joint detection method involving positive and negative topological charges identifies and detects rotational Doppler effects amid robust micro-Doppler interference *** emitter can be used for the rotational velocity measurement of an on-axis spinning object,achieving an impressive maximum speed error rate of∼2%.This approach holds promise for the future development of THz vortex beam applications in radar target detection and countermeasure systems,given its low cost and potential for mass production.
The output waveform and the lasing optical spectrum of a sinusoidally modulated gain-switched Fabry-Perot diode laser (LD) is experimentally observed and investigated. Under a weak modulation, the LD maintains single-...
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A multi-dimensional soft decoding method is proposed and experimentally demonstrated on coupled-core MCF transmission *** intercore crosstalk (IC-XT) can be effectively mitigated with using the MIMO equalizer with sho...
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We present a state-of-the-art two-color laser demonstrating stability below 2.8E-17@1s. This laser is employed to generate microwave signals with the stability of 1E-14@1s, representing an unprecedented achievement ut...
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