Zobrazeno 1 - 10
of 73
pro vyhledávání: '"Guangqiong Xia"'
Publikováno v:
Photonics, Vol 11, Iss 10, p 912 (2024)
We propose and experimentally demonstrate an approach for generating a wideband optical frequency comb (OFC) featuring multiple comb lines and wavelength tunability based on a gain-switched weak-resonant-cavity Fabry–Perot laser diode (WRC-FPLD) un
Externí odkaz:
https://doaj.org/article/edf20518d83c4b84ab971dc0d2aac52a
Autor:
Yuqi Hu, Qingsong Bai, Xi Tang, Wei Xiong, Yilu Wu, Xin Zhang, Yanlan Xiao, Runchang Du, Leiji Liu, Guangqiong Xia, Zhengmao Wu, Junbo Yang, Heng Zhou, Jiagui Wu
Publikováno v:
Frontiers of Optoelectronics, Vol 16, Iss 1, Pp 1-14 (2023)
Abstract Ultrafast physical random bit (PRB) generators and integrated schemes have proven to be valuable in a broad range of scientific and technological applications. In this study, we experimentally demonstrated a PRB scheme with a chaotic microco
Externí odkaz:
https://doaj.org/article/6fa0dfb750f84883aff7bc26727f0af8
Publikováno v:
Photonics, Vol 11, Iss 8, p 759 (2024)
We experimentally demonstrate a scheme for generating massively parallel and real-time physical random bits (PRBs) by using weak-resonant-cavity Fabry-Perot laser diodes (WRC-FPLDs) with optical feedback. By using external optical feedback to modify
Externí odkaz:
https://doaj.org/article/1d2ebbcf049245129a647f2cee8376ce
Publikováno v:
Photonics, Vol 11, Iss 6, p 501 (2024)
This work proposes and experimentally demonstrates a high-performance polarization space parity-time (PT) symmetric fiber ring laser to achieve a low-noise, narrow-linewidth, and highly stable single-longitudinal-mode output. The gain/loss and coupli
Externí odkaz:
https://doaj.org/article/d048746ad6754893bcceca3ac1f14ee0
Publikováno v:
IEEE Access, Vol 11, Pp 23127-23135 (2023)
A stable and tunable parity-time (PT) symmetric single-longitudinal-mode fiber laser using a nonreciprocal Sagnac loop is proposed, which is experimentally and numerically demonstrated. The nonreciprocal Sagnac loop only including a 3-dB optical coup
Externí odkaz:
https://doaj.org/article/da5556f0f9704855b0d1c24e1b633f11
Publikováno v:
Photonics, Vol 10, Iss 11, p 1236 (2023)
We propose and experimentally investigate a symmetric parity-time (PT) coupled optoelectronic oscillator (COEO) based on a polarization-dependent spatial structure. In such a COEO system, the gain/loss and coupling coefficients of two orthogonal pola
Externí odkaz:
https://doaj.org/article/c6ac040b6e1345fc9f537a81e0c9563d
Autor:
Bing Cui, Guangqiong Xia, Xi Tang, Fei Wang, Zaifu Jiang, Yanfei Zheng, Fengling Zhang, Zhengmao Wu
Publikováno v:
IEEE Photonics Journal, Vol 14, Iss 1, Pp 1-5 (2022)
A simple schemefor generating chaotic signals with concealed time-delay signature (TDS) is proposed and experimentally demonstrated. The architecture of the system is based on a semiconductor laser (SL) under multi-path optical feedback (MPOF) provid
Externí odkaz:
https://doaj.org/article/4ef3e154ee804f4193df5081565e2b84
Publikováno v:
Photonics, Vol 10, Iss 8, p 878 (2023)
When theoretically investigating the nonlinear dynamics of quantum dot lasers (QDLs), the parameter value of the electron escape rate (Ce) is sometimes approximated to zero to simplify the calculation. However, the value of Ce is dependent on the ene
Externí odkaz:
https://doaj.org/article/221671446843492c8778c011f3acc3e3
Autor:
Yanfei Zheng, Guangqiong Xia, Xiaodong Lin, Qingqing Wang, Hongpei Wang, Cheng Jiang, Hongmei Chen, Zhengmao Wu
Publikováno v:
Photonics, Vol 10, Iss 2, p 166 (2023)
In this paper, we experimentally investigated the mode configuration of an excited-state quantum dot laser (ESQDL) under concave mirror optical feedback, and the influences of the feedback strength on the mode characteristics were analyzed. The resul
Externí odkaz:
https://doaj.org/article/d351b855099742cbaf1f23eeec747e91
Autor:
Maorong Zhao, Guangqiong Xia, Ke Yang, Shuman Liu, Junqi Liu, Qiupin Wang, Jianglong Liu, Zhengmao Wu
Publikováno v:
Photonics, Vol 9, Iss 6, p 410 (2022)
In this work, we experimentally investigate the nonlinear dynamics of an interband cascade laser (ICL) under variable-aperture optical feedback implemented by a gold mirror combining with a ring-actuated iris diaphragm (RAID). By continuously varying
Externí odkaz:
https://doaj.org/article/921717f540bc4969ab17d8b0c5b90c71