We realize the combination of integrated microcomb and silicon photonics, employing the advanced AlGaAsOI optical nonlinear platform and novel SiPh chips. Data link with 2-Tbps aggregate rate and highly reconfigurable...
详细信息
Dense waveguides are the basic building blocks for photonic integrated circuits(PICs).Due to the rapidly increasing scale of PIC chips,high-density integration of waveguide arrays working with low crosstalk over broad...
详细信息
Dense waveguides are the basic building blocks for photonic integrated circuits(PICs).Due to the rapidly increasing scale of PIC chips,high-density integration of waveguide arrays working with low crosstalk over broadband wavelength range is highly ***,the subwavelength regime of such structures has not been adequately explored in *** propose a waveguide superlattice design leveraging the artificial gauge field mechanism,corresponding to the quantum analog of field-induced n-"photon"resonances in semiconductor *** approach experimentally achieves-24 dB crosstalk suppression with an ultrabroad transmission bandwidth more than 500 nm for dual polarizations on the Si_3N_4 *** fabricated waveguide superlattices support high-speed signal transmission of 112 Gbit/s with high-fidelity signal-to-noise ratio profiles and bit error *** design,featuring a silica upper cladding,is compatible with standard metal back-end-of-the-line *** on such a fundamental structure,which is readily transferable to other platforms,passive and active devices over versatile platforms can be realized with a significantly shrunk on-chip footprint,thus it holds great promise for significant reduction of the power consumption and cost in PICs.
We propose an online paradigm to simultaneously model and optimize Raman gain profiles. Real-time experiments demonstrate the proposed scheme can approach the optimal modelling and optimization performance within 30 d...
详细信息
The development of laser sources capable of automatically aligning with atomic spectral lines is crucial for the creation of plug-and-play atomic devices, such as optical clocks and atomic gravimeters, with an enhance...
详细信息
We proposed a scheme for realizing active Faraday optical frequency standards using diffuse laser cooling of alkali-metal atoms. A 1-m-long cold 87Rb atomic cloud was prepared within a φ 2 cm × l 1 m vacuum glas...
详细信息
We demonstrate a femtosecond erbium-doped fiber laser operated at 895 MHz fundamental repetition rate by nonlinear polarization evolution (NPE). The laser delivers 150 mW of average output power and 79.5 fs pulse dura...
详细信息
A physical-layer authentication is proposed for fingerprint recognition and classification of optical transmitters in fiber networks, based on the received optical spectra, where the recognition accuracy of> 98% is...
详细信息
We demonstrated a digital frequency offset locking system based on long short-term memory (LSTM) neural network and locked two free-running lasers at 1550.12 nm with 291.25 MHz offset after transferring through a 1577...
详细信息
Spontaneous symmetry breaking (SSB) occurs when modes of asymmetric profile appear in a symmetric, double-well potential, due to the nonlinearity of the potential exceeding a critical value. In this study, we examine ...
详细信息
Spontaneous symmetry breaking (SSB) occurs when modes of asymmetric profile appear in a symmetric, double-well potential, due to the nonlinearity of the potential exceeding a critical value. In this study, we examine SSB in a periodic potential where the unit cell itself is a symmetric double well, in both one-dimensional (1D) and two-dimensional (2D) periodic systems. Using the tight-binding model, we derive the analytical form that predicts the critical power at which SSB occurs for both 1D and 2D systems. The results show that the critical power depends significantly on the quasimomentum of the Bloch mode, and as the modulus of momentum increases, the SSB threshold decreases rapidly, potentially dropping to zero. These analytical findings are supported by numerical nonlinear eigenmode analysis and direct propagation simulations of Bloch modes.
We demonstrate a cascaded stable frequency dissemination over a 960-km fiber link and compare the frequency instability of different connectivity modes to explore the optimal cascaded mode for long-diatance frequency ...
暂无评论