Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Renfan Wang"'
Publikováno v:
IEEE Photonics Journal, Vol 8, Iss 2, Pp 1-8 (2016)
In this paper, we experimentally demonstrate a method to generate a frequency-doubling photonic 16-quadrature-amplitude-modulation (16QAM) vector millimeter-wave (mm-wave) signal by using a single phase modulator (PM) with an amplitude and phase prec
Externí odkaz:
https://doaj.org/article/e1c73e1dc0574ee5afbe14ee0f4b46ed
Publikováno v:
Laser Congress 2021 (ASSL,LAC).
A 1653.7nm DFB laser with multiple quantum Wells and ridged waveguide structures was fabricated to detect methane. The device performance has reached 54dB SMSR, 0.372 slope efficiency, saturated optical power greater than 20mW.
Publikováno v:
IEEE Photonics Journal, Vol 8, Iss 2, Pp 1-8 (2016)
In this paper, we experimentally demonstrate a method to generate a frequency-doubling photonic 16-quadrature-amplitude-modulation (16QAM) vector millimeter-wave (mm-wave) signal by using a single phase modulator (PM) with an amplitude and phase prec
Autor:
Feng Tian, Jumin Zhao, Renfan Wang, Lijia Zhang, Qinghua Tian, Xiangjun Xin, Bo Liu, Qi Zhang, Guan Xiaoning, Deng'ao Li
Publikováno v:
Optical Communication, Optical Fiber Sensors, and Optical Memories for Big Data Storage.
A novel training sequence is designed for the space division multiplexed fiber-optic transmission system in this paper. The training block is consisting of segmented sequence, which can be used to compensate time offset and distortion (such as disper
Publikováno v:
2016 15th International Conference on Optical Communications and Networks (ICOCN).
Design and fabrication of multi-wavelength 1.3µm AlGaInAs/InP distributed feedback (DFB) laser array for analogy radio-over-fiber (RoF) system is proposed. The performance of the DFB laser such as high power, low noise, wide modulation bandwidth, hi
Autor:
Jun Liu, Zhangquan Lei, Joseph Lau, Jing Gu, Hongyao Chen, Chuliang Liu, Zhenglin Li, Renfan Wang, Xi Chen
Publikováno v:
AIDS Care. 21:967-975
Female injecting drug users who are sex workers (IDUFSWs) is a strategic "bridge population" for HIV transmission. Goals of the study were to investigate condom use behaviors during commercial sex among IDUFSWs using the Theory of Planned Behavior (T
Autor:
Joseph T F, Lau, Renfan, Wang, Hongyao, Chen, Jing, Gu, Jianxin, Zhang, Feng, Cheng, Yun, Zhang, Linglin, Zhang, Hi-Yi, Tsui, Ning, Wang, Zhangquan, Lei, Xiaodong, Zhong, Yajia, Lan
Publikováno v:
Sexually Transmitted Diseases. 34:653-662
The study evaluates the overall effectiveness of intervention programs among female sex workers in a Chinese community.Behavioral surveillance data in 2003, 2004, and 2005 obtained from 2 communities (intervened and control) were compared.The baselin
Publikováno v:
IEEE Photonics Technology Letters. 16:717-719
The structure of the conventional contact 1.3-/spl mu/m GaInNAs-GaAs vertical-cavity surface-emitting lasers (VCSELs) was optimized and low threshold current 1.3-/spl mu/m GaInNAs VCSELs grown by metal-organic vapor-phase epitaxy were reported. The i
Publikováno v:
Sexual health. 9(4)
Objectives We compared the prevalence of inconsistent condom use during commercial sex between female sex workers (FSWs) who did or did not inject drugs (FSW-IDUs and FSW-NIDUs) and investigated factors associated with this inconsistent use within th
Autor:
Zhangquan Lei, Zhenglin Li, Renfan Wang, Linglin Zhang, Hi Yi Tsui, Hua Cai, Joseph Lau, Xianyou Hu, Jing Gu, Hongyao Chen, Tao Wang
Publikováno v:
AIDS care. 21(1)
The objective of this study is to investigate prevalence and associated factors of commercial sex behaviors and condom use at commercial sex, as well as prevalence of needle sharing among injecting drug users (IDUs) in China. In this study, 162 IDUs