An integrated frequency-modulated continuous-wave Lidar is demonstrated based on lens-assisted beam steering technology at 1550nm. For the first time, the integrated Lidar has achieved a maximum ranging distance up to...
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For building a self-driving optical network, advanced techniques for network modeling and monitoring are essential. We discuss possible approaches for fusing the artificial intelligence and physics to further improve ...
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The scheme combining clock distribution and protection sequence insertion from the network perspective is proposed and experimentally investigated to implement a 3.1 nanoseconds clock and data recovery in optical swit...
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TGV interposer fabricated by 8-inch glass wafer with 110-GHz bandwidth and 128-GBaud OOK signal interconnection is presented. Flip-chip packaging of EML and EIC chips were realized, proving great potential in 2.5D CPO...
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Five machine learning (ML) models are investigated for erbium-doped fiber amplifier (EDFA) gain modeling based on the experimental dataset. Result shows the modeling performance varies from model to model, providing u...
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Using modulation transfer spectroscopy, we achieve the frequency stabilization of a high-power 3-W blue laser at the wavelength of 420 nm to the Rb 5S1/2–6P3/2 transition. The in-loop frequency stability of this lase...
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Using modulation transfer spectroscopy, we achieve the frequency stabilization of a high-power 3-W blue laser at the wavelength of 420 nm to the Rb 5S1/2–6P3/2 transition. The in-loop frequency stability of this laser is 1.8×10−11/τ, reaching 1.7×10−12 at 100 s and 7×10−13 at 1000 s. An external power feedback loop is established using an acousto-optic modulator, employing the zeroth-order diffracted light for power stabilization, achieving an in-loop power stability of 1.0×10−6 at 1 s. Moreover, the continuous mode-hop free interval of this high-power laser can simultaneously cover the 5S1/2–6P3/2 transitions of 85Rb and 87Rb, with successful locking achieved for both isotopes, providing a comprehensive analysis of the Rb atomic transitions in the blue spectral region. As an application, this 3-W 420-nm laser with excellent power and frequency stabilities is used as a repumping source for diffuse laser cooling of 87Rb atoms, realizing a one-meter-long cold-atom cloud. This paves the way for using blue-light cooling to realize a cold-Rb-atom active optical clock. In addition, the ultrahigh-stability 420-nm laser also finds applications in various fields such as the Rydberg atom experiment, Bose-Einstein condensation, ultranarrow-bandwidth Faraday atomic filter, and so on.
Single-frequency single-resonator lasers on erbium-doped lithium niobate on insulator are demonstrated. The 35 GHz microring laser exhibits wavelength switching while the 192 GHz microring laser achieves a maximal out...
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We have theoretically and experimentally demonstrated the existence of zero-dispersion solitons in a high Q fiber F-P microresonator with weak anomalous dispersion. This work reveals the nonlinear dynamics of such zer...
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This paper establishes a Kerr soliton burst system by the double-pump method, which supports a single soliton state for over one hour. The soliton is analyzed by shorttime Fourier transform to get the time-frequency s...
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We demonstrated a highly-compressive optical coherence tomography angiography framework. Our deep learning-enabled strategy can achieve satisfactory OCTA image quality with much lower data bandwidth than existing meth...
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