Publications (15)
Branching optical frequency transfer with enhanced post automatic phase noise cancellation
Ruimin Xue, Liang Hu, Jianguo Shen +2
We present a technique for coherence transfer of laser light through a branching fiber link, where the optical phase noise induced by environmental perturbations via the fiber link…
All-passive multiple-place optical phase noise cancellation
Liang Hu, Ruimin Xue, Xueyang Tian +2
We report on the realization of delivering coherent optical frequency to multiple places based on passive phase noise cancellation over a bus topology fiber network. This technique…
Multiple-access relay stations for long-haul fiber-optic radio frequency transfer
Qi Li, Liang Hu, Jinbo Zhang +2
We report on the realization of a long-haul radio frequency (RF) transfer scheme by using multiple-access relay stations (MARSs). The proposed scheme with independent link noise co…
Fiber radio frequency transfer using bidirectional frequency division multiplexing dissemination
Qi Li, Liang Hu, jinbo Zhang +2
We report on the realization of a novel fiber-optic radio frequency (RF) transfer scheme with the bidirectional frequency division multiplexing (FDM) dissemination technique. Here,…
Experimental Demonstration of High-Precision Multi-access Time Transfer via Optical-Electrical-Optical Repeater Stations
Hao Zhang, Guiling Wu, Xinwan Li +1
In this paper, we propose a kind of optical-electrical-optical (OEO) repeater station for the time transfer based on bidirectional time division multiplexing transmission over a si…
High-precision Joint Time and Frequency Transfer over a Fiber-optic Telecom Testbed
Hao Zhang, Guiling Wu, Xinwan Li +1
It is highly desired to operate a joint time and frequency transfer over the exiting fiber-optic telecom networks with the commercial data transmission. Previously, we proposed a t…
Narrowband parallel coherent LiDAR with frequency interleaving
Long Wang, Liang Hu, Wenhai Jiao +3
The high demand for 3D imaging in intelligent robotics is motivating the advances of coherent LiDARs towards high performances with low complexity/cost. However, the current cohere…
Free-space point-to-multiplepoint optical frequency transfer with lens assisted integrated beam steering
Liang Hu, Ruimin Xue, Xianyi Cao +4
We report on the realization of high-performance silica integrated two-dimensional lens assisted beam-steering (LABS) arrays along with the first-of-their-kind point-to-multiplepoi…
Multi-node optical frequency dissemination with post automatic phase correction
Liang Hu, Xueyang Tian, Guiling Wu +3
We report a technique for coherence transfer of laser light through a fiber link, where the optical phase noise induced by environmental perturbation via the fiber link is compensa…
Vector network analysis based on wideband direct photonic digitizing
Zhengtao Jin, Guiling Wu, Min Ding +1
Vector network analyzers (VNAs) have become one of the indispensable tools in various fields, such as medicine, material, geology, communication, and etc, due to the capacity of me…
Passive Optical Phase Stabilization on a Ring Fiber Network
Liang Hu, Xueyang Tian, Long Wang +2
Optical frequency transfer provides the means for high-fidelity frequency transfer across thousands of kilometers. A critical step in the further developing optical frequency trans…
Fundamental Limitations of Rayleigh Backscattering Noise on Fiber-Based Multiple-Access Optical Frequency Transfer
Liang Hu, Xueyang Tian, Guiling Wu +2
While it has been shown that backscattering induced phase noise can be suppressed by adopting acoustic-optic-modulators (AOMs) at the local and remote sites to break the frequency…
Basic Theoretical Model and Sampling Criteria for Time-Interleaved Photonic Analog-to-Digital Converters
Feiran Su, Guiling Wu, Weiwen Zou +1
In this paper, we present a basic model for time-interleaved photonic analog-to-digital converter (TIPADC) and analyze its linear, nonlinear, and noise performance. The basic opera…
Enhanced phase noise reduction in localized two-way optical frequency comparison
Long Wang, Ruimin Xue, Wenhai Jiao +2
High-stability optical frequency comparison over fiber link enables the establishment of ultrastable optical clock networks, having the potential to promote a series of application…
Passive Optical Phase Noise Cancellation
Liang Hu, Xueyang Tian, Guiling Wu +1
We report on the realization of an optical phase noise cancellation technique by passively embedding the optical phase information into a radio frequency (RF) signal and shifting t…