Zobrazeno 1 - 10
of 200
pro vyhledávání: '"Zhenhua Cong"'
Publikováno v:
Results in Optics, Vol 15, Iss , Pp 100650- (2024)
A compact high-power 2.8-µm laser with a 2 at.%-doped Er3+:CaF2 crystal was demonstrated, which delivered a maximum output power of 2.848 W with a slope efficiency of 26.3 %. To the best of our knowledge, this is the highest output power among all t
Externí odkaz:
https://doaj.org/article/db76ad6ee02547f5923c5f74a7731edd
Autor:
Xingping Wang, Gang Zhao, Kang Jiao, Bing Chen, Ruifeng Kan, Zhenhua Cong, Jianguo Liu, Weiguang Ma
Publikováno v:
Frontiers in Physics, Vol 10 (2022)
Optical feedback cavity ringdown spectroscopy is presented with a linear Fabry–Pérot cavity and a cost-effective DFB laser. To circumvent the low coupling efficiency caused by the broad laser linewidth, an optical feedback technique is used, and a
Externí odkaz:
https://doaj.org/article/c2328249244c4dd994b10c23f15d30c2
Autor:
Feilong Gao, Xingyu Zhang, Zhenhua Cong, Zhaojun Liu, Xiaohan Chen, Zengguang Qin, Peng Wang, Jinjin Xu, Weitao Wang, Shaojun Zhang
Publikováno v:
IEEE Photonics Journal, Vol 12, Iss 2, Pp 1-9 (2020)
This paper reports an intracavity terahertz parametric source based on the stimulated polariton scattering in RbTiOPO4 crystal with a high repetition rate and a high average power. The side pumping for the gain medium by laser diodes is adopted to ge
Externí odkaz:
https://doaj.org/article/917e8d7012cb4c41938b9def62769792
Autor:
Jie Zang, Dong Wu, Xingyu Zhang, Zhenhua Cong, Zengguang Qin, Xiaohan Chen, Zhaojun Liu, Ping Li, Feilong Gao, Chenyang Jia, Yue Jiao, Weitao Wang, Shaojun Zhang
Publikováno v:
IEEE Photonics Journal, Vol 11, Iss 2, Pp 1-11 (2019)
In terahertz (THz) wave parametric sources, the large angle between the pump and terahertz waves (about 65° in LiNbO3 crystal) will affect the spatial intensity distributions. To investigate how the noncollinear phase-matching affects the spatial in
Externí odkaz:
https://doaj.org/article/996e484ec2bd4594b6364d423a8f2ac1
Publikováno v:
IEEE Photonics Journal, Vol 11, Iss 4, Pp 1-13 (2019)
In this letter, tin diselenide (SnSe2) was successfully prepared with the liquid-phase exfoliation method and embedded into polyvinyl alcohol as a saturable absorber (SA) in a dual-wavelength passively mode-locked Yb-doped fiber laser. Stable mode-lo
Externí odkaz:
https://doaj.org/article/b8febc1e16a04643a06f75becd0f2c63
Publikováno v:
IEEE Photonics Journal, Vol 10, Iss 6, Pp 1-8 (2018)
A multi-gas quartz enhanced photoacoustic spectroscopy (QEPAS) sensor based on three quartz tuning forks (QTFs) with different response frequencies for trace gas detection was proposed and experimentally demonstrated. Three near-infrared DFB lasers a
Externí odkaz:
https://doaj.org/article/c471f2ed63744d1f8fddf7ea09f3c4f0
Publikováno v:
Crystals, Vol 11, Iss 1, p 58 (2021)
A single-longitudinal-mode (SLM) Neodymiun-doped Yttrium Aluminium Garnet (Nd:YAG) laser at 1123 nm was first demonstrated with a twisted-mode (TM) cavity. By eliminating the spatial hole burning phenomenon, a stable SLM 1123 nm laser output was obta
Externí odkaz:
https://doaj.org/article/5087398661a24aec974079a4c413b79d
Autor:
Zecheng Wang, Xingyu Zhang, Zhenhua Cong, Zhaojun Liu, Xiaohan Chen, Zengguang Qin, Na Ming, Quanxin Guo
Publikováno v:
Crystals, Vol 10, Iss 11, p 974 (2020)
The characteristics of a tunable Stokes laser based on the cascaded stimulated polariton scattering and stimulated Raman scattering in KTiOPO4 crystal were studied experimentally and theoretically. When the pumping wavelength was 1064 nm, the Stokes
Externí odkaz:
https://doaj.org/article/7d48a4a2ab4d45f68b523e41bac0f6fd
Autor:
Feilong Gao, Yuan Li, Zhenhua Cong, Xingyu Zhang, Zhaojun Liu, Xiaohan Chen, Zengguang Qin, Zecheng Wang, Na Ming
Publikováno v:
Crystals, Vol 10, Iss 9, p 732 (2020)
This paper reports the characteristics of an injection-seeded terahertz parametric oscillator (TPO) with a ring-cavity configuration based on the MgO:LiNbO3 crystal. The ring cavity is constituted of three mirrors and the THz wave output surface wher
Externí odkaz:
https://doaj.org/article/5867e6c0f3e94e1bbc8807fdb1d80d98
Autor:
Zhaojun Liu, Han Rao, Zhenhua Cong, Feng Xue, Xibao Gao, Shang Wang, Wei Tan, Chen Guan, Xingyu Zhang
Publikováno v:
Crystals, Vol 9, Iss 4, p 185 (2019)
A single-frequency crystalline Raman master oscillator power amplifier (MOPA) at 1178 nm was demonstrated. The pump source was a homemade single-frequency 1062 nm Nd:GGG MOPA system with a pulse width of 104 ns. The BaWO4 Raman oscillator generated s
Externí odkaz:
https://doaj.org/article/e209cf44d2a0409293c9835e11be279d