Zobrazeno 1 - 10
of 178
pro vyhledávání: '"Microwave signal generation"'
Publikováno v:
Frontiers of Optoelectronics, Vol 16, Iss 1, Pp 1-7 (2023)
Abstract Optical beating is the usual approach to generation of microwave signals. However, the highest frequency achievable for microwave signals is limited by the bandwidths of optoelectronic devices. To maximize the microwave frequency with a limi
Externí odkaz:
https://doaj.org/article/0dee9b9a15414a31a8f5b2cc5d285f89
Publikováno v:
IEEE Access, Vol 11, Pp 73352-73358 (2023)
This paper presents a high-power microwave oscillator using a recursive balanced amplification technique. The proposed architecture is configured by a balanced power amplifier (BPA) with class-AB operation and two feedback networks. Each feedback cir
Externí odkaz:
https://doaj.org/article/41599e1834474af9b959a06ecb0b9bdd
Autor:
Hao Chen, Erwin H. W. Chan
Publikováno v:
IEEE Access, Vol 11, Pp 16368-16375 (2023)
This paper presents a detailed experimental investigation of the nonlinear dynamics of a dual-beam optically injected semiconductor laser. Unlike previous works, we focus on the situation where the power and the frequency of the injection light wave
Externí odkaz:
https://doaj.org/article/1aedc746083f44c8b724f66a6942ca73
Autor:
Guodong Wang, Qingqing Meng, Yongjun Li, Xuan Li, Yixiao Zhou, Zihang Zhu, Congrui Gao, He Li, Wei Jiang, Shanghong Zhao
Publikováno v:
Results in Physics, Vol 52, Iss , Pp 106807- (2023)
An approach for photonic generation of multilevel frequency-hopping (FH) microwave signal based on a Sagnac loop is proposed and investigated. In the Sagnac loop, several Mach-Zehnder Interferometers (MZI), driven by the coding signals, are connected
Externí odkaz:
https://doaj.org/article/b3eef2b0c44b4fda906d6533af1b38e9
Publikováno v:
Results in Physics, Vol 39, Iss , Pp 105784- (2022)
Appearance of exceptional points (EPs) in photonics arises enormous attention as a result of the counterintuitive phenomena occurring around EP. In particular, adiabatically encircling EP contributes to accumulation of Berry phase, leading to mode sw
Externí odkaz:
https://doaj.org/article/57f1fe01ed1044489ff9447646c2ca80
Publikováno v:
IEEE Access, Vol 9, Pp 109865-109874 (2021)
A photonic approach to generate multiform microwave frequency shift keying (FSK) signal is proposed. In the scheme, a dual-polarization quadrature phase shift-keying (DP-QPSK) modulator along with a polarization controller (PC) is employed to generat
Externí odkaz:
https://doaj.org/article/80c595e5f9734d6382550327f4bd976f
Publikováno v:
IEEE Photonics Journal, Vol 12, Iss 5, Pp 1-8 (2020)
A photonic method to generate hybrid binary digitally modulated radio frequency (RF) signals (i.e. ASK, PSK, and FSK) by using a polarization-division-multiplexed Mach-Zehnder modulator (PDM-MZM) is proposed. The PDM-MZM is driven by two RF signals w
Externí odkaz:
https://doaj.org/article/174eaaa1ad1a45f98825989a71e8f19a
Akademický článek
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Publikováno v:
Photonics, Vol 9, Iss 10, p 717 (2022)
Photonics-based microwave generation brings the advantages of photonic oscillators, such as high stability, wide bandwidth, and low loss, to the microwave domain. In this paper, the generation of tunable microwave signals was investigated both theore
Externí odkaz:
https://doaj.org/article/ff069a062ed8460fa515f322fbab0698
Autor:
Xia Feng, Lianshan Yan, Hengyun Jiang, Peng Li, Jia Ye, Yin Zhou, Wei Pan, Bin Luo, Xihua Zou, Tao Zhou
Publikováno v:
IEEE Photonics Journal, Vol 11, Iss 1, Pp 1-7 (2019)
A photonic scheme to generate a 4-level frequency hopping (FH) microwave signal is proposed and experimentally demonstrated. The frequency of the generated signal can be fast and flexibly switched by shifting the combinations of two binary signals (i
Externí odkaz:
https://doaj.org/article/54bcf53e5c7d4cfcac5adaf7286f9163