Weibiao Chen

Weibiao Chen
Chinese Academy of Sciences | CAS · Research Center of Space Laser Information Technology

Doctor of Engineering

About

290
Publications
52,268
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
2,698
Citations
Additional affiliations
January 2014 - October 2014
Chinese Academy of Sciences
Position
  • Principal Investigator

Publications

Publications (290)
Preprint
Full-text available
A single longitudinal mode (SLM) 486.1 nm blue pulsed laser was investigated by adopting a single-frequency distributed feedback laser (DFB) injected optical parametric oscillator (OPO) and optical parametric amplifier (OPA) structure, pumped by a 355 nm ultraviolet SLM laser at pulse repetition rate of 200 Hz. The maximum output pulse energy of 22...
Article
Full-text available
A narrow linewidth nanosecond partially end-pumped slab (Innoslab) laser amplifier at 1064 nm has been demonstrated. A 6 W seed at a repetition rate of 10 kHz was amplified to 50.1 W with an absorbed pump power of 163 W, achieving a power stability of 0.49% over 10 min. The maximum extraction efficiency reached 28.3% at an absorbed pump power of 14...
Article
Full-text available
A silicon photonic integrated chip was designed to further miniaturize the CO2 gas- gas-measurement LiDAR seed laser. The optical links of the laser frequency stabilization loop (FSL), optical phase-locked loop (OPLL), and thermo-optical switch (TOS) are integrated into a photonic integrated circuit (PIC). The frequency stabilization loop built by...
Article
Full-text available
Plain Language Summary For global greenhouse gas monitoring, passive remote sensing technology has consistently struggled to balance the reliability and usability of monitoring data in cloudy regions. The AEMS employs 1,572 nm IPDA lidar technology for active remote sensing of global XCO2, enabling effective processing and utilization of cloud echo...
Preprint
Full-text available
Coal-fired power plants are a major source of global carbon emissions, and accurately accounting for these significant emission sources is crucial in addressing global warming. Many previous studies have used Gaussian plume models to estimate power plant emissions, but there is a gap in observation capabilities for high-latitude regions and nightti...
Preprint
Full-text available
The Atmospheric Environment Monitoring Satellite (DQ-1) was successfully launched in April 2022, with the capability of providing continuous multi-sensor spatial and optical simultaneous observations of carbon dioxide, aerosols and clouds. The primary payload carried on DQ-1 is an Aerosol and Carbon dioxide Detection Lidar (ACDL). The instrument co...
Article
Spaceborne lidars have demonstrated outstanding global ocean observation in terms of sampling at day- and night-time and penetrating thin cloud and aerosol layers. A spaceborne high-spectral-resolution lidar (HSRL) has the potential to provide accurate optical properties by decreasing the number of assumptions in the retrieval algorithm in comparis...
Article
Full-text available
We propose a novel design of hybrid multi-band wavelength/polarization/mode (de)multiplexer based on 800 nm thick Si $_{3}$ N $_{4}$ platform. The 16 channels are enabled by asymmetric rib polarization beam splitters, subwavelength polarization rotators and asymmetric directional couplers, consisting of two operating frequency bands, dual polari...
Article
Full-text available
The Atmospheric Environment Monitoring Satellite (AEMS), also called Daqi-1 or DQ-1, was launched in April 2022; one of its main payloads is a high-spectral-resolution lidar (HSRL) system. This new system enables the accurate measurements of global aerosol optical properties, which can be used in the geoscientific community after the retirement of...
Article
Full-text available
The space-borne Integrated Path Differential Absorption (IPDA) lidar can measure the global distribution of CO2. Here, we simulate measurements on the R16 absorption line employing a 1572 nm electro-optic dual-comb interferometer. We introduce a comprehensive modeling and retrieval framework to assess the lidar’s capability in measuring the column-...
Article
Full-text available
In this paper, we demonstrate an ultrafast diamond Raman laser at 1240 nm with a pulse repetition rate of 956.62 MHz, a pulse duration of 39.5 ps, and an average power of up to 3.3 W based on synchronous pumping. The pump source is an electrical-pulse-modulated picosecond pulsed laser at 1064 nm with a repetition rate of 239.16 MHz and a pulse dura...
Preprint
A high energy, frequency stabilized three-wavelength laser was developed for spaceborne aerosol and Carbon Detection Lidar (ACDL) on Atmospheric Environment Monitoring Satellite (AEMS). The laser utilized fiber-bulk hybrid amplifier and cascaded OPO/OPA/SHG for the first time in space. Pulse energy of 45mJ, 185mJ and 135mJ for 1572nm,1064nm and 532...
Preprint
A high energy, frequency stabilized three-wavelength laser was developed for spaceborne aerosol and Carbon Detection Lidar (ACDL) on Atmospheric Environment Monitoring Satellite (AEMS). The laser utilized fiber-bulk hybrid amplifier and cascaded OPO/OPA/SHG for the first time in space. Pulse energy of 45mJ, 185mJ and 135mJ for 1572nm,1064nm and 532...
Article
Full-text available
We demonstrate a 532.2 nm high-power all-solid-state pulse laser with a repetition rate of 85 Hz, a single pulse energy of 215.8 mJ. The lasers spot size is (3.8, 3.6) mm, and the divergence angle is (0.57, 0.69) mrad. The stable working state of this laser last for 402 s and the pointing stability of the output beam is better than 50 μ rad. A flui...
Article
Full-text available
In contrast to the passive remote sensing of global CO2 column concentrations (XCO2), active remote sensing with a lidar enables continuous XCO2 measurements throughout the entire atmosphere in daytime and nighttime. The lidar could penetrate most cirrus and is almost unaffected by aerosols. Atmospheric environment monitoring satellite (AEMS, also...
Article
The relative intensity noise (RIN) characteristics of a continuous-wave diamond Raman laser are investigated for the first time. The results reveal the parasitic stimulated Brillouin scattering (SBS) that usually occurred with higher-order spatial modes in the diamond Raman resonator is a pivotal factor impacting the Raman longitudinal modes and de...
Article
Full-text available
An integrated path differential absorption (IPDA) lidar can accurately measure regional ${{\rm CO}_2}$ C O 2 weighted column average concentrations ( ${{\rm XCO}_2}$ X C O 2 ), which are crucial for understanding the carbon cycle in climate change studies. To verify the performance and data inversion methods of space-borne IPDA lidar, in July 2021,...
Article
Full-text available
On 16 April 2022, China successfully launched the world's first spaceborne high-spectral-resolution lidar (HSRL), which is called the Aerosol and Carbon Detection Lidar (ACDL), on board the Atmospheric Environment Monitoring Satellite known as Daqi-1 (DQ-1). The ACDL is expected to precisely detect the three-dimensional distribution of aerosol and...
Preprint
Full-text available
The Atmospheric Environment Monitoring Satellite (DQ-1) was successfully launched in April 2022, with the capability of providing continuous multi-sensor spatial and optical simultaneous observations of carbon dioxide, aerosols and clouds. The primary payload carried on DQ-1 is an Aerosol and Carbon dioxide Detection Lidar (ACDL). The instrument co...
Article
Full-text available
The successful launch of the first spaceborne CO2 IPDA LIDAR onboard Daqi-1 (DQ-1) in April 2022 marks a milestone in advancing scientific research. However, a notable discrepancy in the physical definitions of X <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">co</sub> <sub xmlns:mml="http://www.w3.org...
Article
Full-text available
Compared to single-band spaceborne lidars such as the Global Ecosystem Dynamics Investigation (GEDI) and Ice, Cloud and Land Elevation Satellite-2 (ICESat-2), multi-band spaceborne lidars improve detection of the canopy and ground. However, research on geographic elevation inversion with multi-band spaceborne lidars is limited, especially in develo...
Chapter
Air-sea coupling and energy circulation inside the ocean are the frontiers of ocean science and important directions of Earth’s system science. Researchers have carried out extensive research on multi-scale dynamic characteristics and ecological environment parameter based on the development of advanced remote sensing technology. However, the lack...
Preprint
Full-text available
On April 16, 2022, China has successfully launched the world's first space-borne high spectral resolution lidar (HSRL), which is called the Aerosol Carbon Detection Lidar (ACDL) onboard the DQ-1 satellite. The ACDL is expected to precisely detect the three-dimensional distribution of aerosol and cloud globally with high spatial-temporal resolutions...
Article
Full-text available
Airborne oceanic lidars act as an active remote sensing technique have been proved to be one of the most effective and reliable means of oceanic profile remote sensing. This review aims to provide a comprehensive overview of the principles, methodologies, applications, and prospects of oceanic lidar remote sensing. A survey of the previous studies...
Preprint
Full-text available
The atmospheric environment monitoring satellite DQ-1 was launched in April 2022, which consists of a spaceborne High Spectral Resolution Lidar (HSRL) system. This new system enables the accurate measurements of global aerosol optical properties, which can be used in Geo-scientific community after the Cloud-Aerosol Lidar and Infrared Pathfinder Sat...
Article
Full-text available
In the development of the Cold Atom Physics Research Rack (CAPR) on board the Chinese Space Station, the laser system plays a critical role in preparing the all-optical ${}^{87}{\rm Rb}$ 87 R b Bose–Einstein condensates (BECs). An all-fiber laser system has been developed for CAPR to provide the required optical fields for atom interaction and to m...
Article
Full-text available
A continuous-wave (CW) single-longitudinal-mode (SLM) Raman laser at 1240 nm with power of up to 20.6 W was demonstrated in a free-running diamond Raman oscillator without any axial-mode selection elements. The SLM operation was achieved due to the spatial-hole-burning free nature of Raman gain and was maintained at the highest available pump power...
Article
Full-text available
We experimentally verified our prior theoretical work [J. Opt. Soc. Am. B 39, 3012 (2022)] by employing matter-wave interference to measure the ultranarrow momentum width of an optically trapped Bose-Einstein condensate (BEC) in situ. Splitting the BEC wave packet into various diffraction orders through double stand-wave pulses, we calibrated the m...
Preprint
Full-text available
The Integrated Path Differential Absorption (IPDA) lidar is capable of accurately measuring regional carbon dioxide (CO 2 ) column concentrations, which is crucial for understanding the carbon cycle in the biosphere and predicting future climate change. The space-borne IPDA lidar has become the preferred sensor for measuring global CO 2 column conc...
Article
Full-text available
The efficacy of underwater laser detection is considerably impacted by the intense attenuation of light resulting from the scattering and absorption effects of water. In this study, we present the simulation and design of the underwater Lidar system that integrates the paraxial multi-channel detection strategy to enhance the dynamic range in subsea...
Article
Full-text available
Measuring the characteristics of seawater constituent is in great demand for studies of marine ecosystems and biogeochemistry. However, existing techniques based on remote sensing or in situ samplings present various tradeoffs with regard to the diversity, synchronism, temporal-spatial resolution, and depth-resolved capacity of their data products....
Article
Full-text available
In microgravity, atoms can be prepared to a lower temperature and manipulated with a longer time. The Cold Atom Physics Research Rack (CAPR) in Chinese Space Station, which aims to prepare quantum degenerate gas for deep cooling and quantum simulation in microgravity, has been designed, realized, and validated. We built an integrated CAPR, consisti...
Article
Full-text available
A tunable and narrow-bandwidth Q-switched ytterbium-doped fiber (YDF) laser is investigated in this paper. The non-pumped YDF acts as a saturable absorber and, together with a Sagnac loop mirror, provides a dynamic spectral-filtering grating to achieve a narrow-linewidth Q-switched output. By adjusting an etalon-based tunable fiber filter, a tunabl...
Article
Full-text available
An in-situ laser Doppler current probe (LDCP) for the simultaneous measurements of the micro-scale subsurface current speed and the characterizations of micron particles is dedicated in this paper. The LDCP performs as an extension sensor for the state-of-the-art laser Doppler anemometry (LDA). The all-fiber LDCP utilized a compact dual wavelength...
Article
Full-text available
CO2 column-weighted dry-air mixing ratio (XCO2) products with high precision and spatial resolution are essential for inverting CO2 fluxes and promoting our understanding of global climate change. Compared with passive remote sensing methods, IPDA LIDAR, as an active remote sensing technique, offers many advantages in measuring XCO2. However, a sig...
Article
Full-text available
The phase summation effect in sum-frequency mixing process is utilized to avoid a nonlinearity obstacle in the power scaling of single-frequency visible or ultraviolet lasers. Two single-frequency fundamental lasers are spectrally broadened by phase modulation to suppress stimulated Brillouin scattering in fiber amplifier and achieve higher power....
Article
Full-text available
In this work, we present a monolithic single-frequency, single-mode and polarization maintaining Yb-doped fiber (YDF) amplifier delivering up to 6.9 W at 972 nm with a high efficiency of 53.6%. Core pumping at 915 nm and elevated temperature of 300 °C were applied to suppress the unwanted 977 nm and 1030 nm ASE in YDF, so as to improve the 972 nm l...
Article
Full-text available
The method of the maximum function of accumulated spectra based on the genetic algorithm is applied for the first time to three-dimensional (3D) wind field retrieval by Doppler wind lidar on an airborne platform. The algorithm can obtain the 3D wind field directly from the origin spectra of different directions regardless of the radial wind velocit...
Article
Full-text available
The laser heterodyne radiometer (LHR) has the advantages of miniaturization, low cost, and high spectral-resolution as a ground-verification instrument for satellite observation of atmospheric trace-gas concentration. To verify the accuracy of LHR measurements, a new performance evaluation method is presented here, based on an ASE source and a CO2...
Article
Full-text available
Aerosols and clouds greatly affect the Earth’s radiation budget and global climate. Light detection and ranging (lidar) has been recognized as a promising active remote sensing technique for the vertical observations of aerosols and clouds. China launched its first space-borne aerosol-cloud high-spectral-resolution lidar (ACHSRL) on April 16, 2022,...
Article
A high repetition rate, high peak power, narrow linewidth nanosecond 589 nm laser based on sum-frequency generation (SFG) of 1064 nm and 1319 nm laser is demonstrated. A 1064 nm single-frequency distributed-feedback laser diode (DFB-LD) externally modulated by an acousto-optic modulator (AOM) and amplified by a fiber-solid hybrid amplifier with thr...
Article
Full-text available
In this paper, we report a diode side-pumped injection-seeded single-frequency Tm,Ho:YLF laser, which operated at lasing threshold and emitted at 2051.2 nm. The assistance of Fabry–Pérot (FP) etalons to seed injection via mode selection was investigated. An acousto-optic Q-switched output of 6.7 mJ was achieved at 5 Hz. A temporal pulse duration of...
Article
Full-text available
High-power ns-pulsed lasers have been widely used in many significant applications, including laser radar, remote-sensing, biomedicine, industrial process, and military defense. Stimulated Raman scattering (SRS) provides an efficient method for extending the wavelengths of laser radiation. Due to the excellent thermal conductivity, high damage thre...
Article
Full-text available
Accurate monitoring of atmospheric carbon dioxide (CO2) is of great significance for studying the carbon cycle. Compared to ground observational sites, airborne observations cover a wider area, which help in effectively monitoring the distribution of CO2 sources and sinks. In this study, an airborne campaign was carried out in June and July 2021 to...
Preprint
Full-text available
In this paper, we report a diode side-pumped injection-seeded single-frequency Tm,Ho:YLF laser, which operated at lasing threshold and emitted at 2051.2 nm. The assistance of Fabry-Pérot (FP) etalons to seed injection via mode selection was investigated. An acouto-optic Q-swiched output of 6.7 mJ was achieved at 5 Hz. A temporal pulse duration of 3...
Article
Despite the small size and ubiquitous presence, fine-mode aerosols play a vital role in climate change and human health, especially in highly populated regions. Hitherto, some studies have been carried out to retrieve fine-mode aerosol microphysical properties from multi-wavelength lidar measurements. However, there has been a dearth of lidar-based...
Article
Full-text available
An efficient intracavity frequency-doubled diamond Raman laser output at 620 nm wavelength is demonstrated. Laser output power of 750 mW at central wavelength of 620.1 nm was achieved successfully at a repetition rate of 2 kHz. The optical conversion efficiency was up to 11.0%. The laser beam M2 factors were less than 1.6 and 1.3 in the x and y dir...
Article
Full-text available
Attenuation of the laser beam in underwater transmission and detection due to absorption and scattering results in a rapid reduction in energy and blurring of the image. By combining the bidirectional reflectivity distribution function (BRDF) with the Monte Carlo (MC) method, a full-link underwater imaging process model was established which compre...
Article
Full-text available
The Cold Atom Physics Rack (CAPR) of Chinese space station will be launched at the end of 2022. The important goal of CAPR is to achieve BEC at 100 pk. In order to obtain ultracold atoms in microgravity of space station, we propose a two-stage cooling scheme using all-optical trap with different waist beams. The cold atom cloud obtained by this sch...