Results 31 to 40 of about 4,961 (263)

Terahertz-Wave Generation Based on Optical Frequency Comb and Single Mach-Zehnder Modulator

IEEE Photonics Journal, 2020
A novel Terahertz-wave (THz-wave) generation on the strength of optical frequency comb and single push-pull Mach-Zehnder modulator (MZM) with a pair of transmitter and receiver in 0.4-THz band is proposed.
Jianguo Yu, Kaile Li, Yuanxiang Chen, Lun Zhao, Yongtao Huang, Yitong Li, Jie Ma, Feilong Shan   +7 more
doaj   +1 more source

Phase Noise Reduction of an Optical Frequency Comb Using a Feed-Forward Heterodyne Detection Scheme

IEEE Photonics Journal, 2016
A novel feed-forward phase noise reduction scheme is introduced to reduce the phase noise of an optical frequency comb. The phase noise of a single comb line is measured using a heterodyne technique, and the inverse of this signal is then applied to the ...
Regan T. Watts, Stuart G. Murdoch, Liam P. Barry   +2 more
doaj   +1 more source

Broadband Continuous-Wave Multi-Harmonic Optical Comb Based on a Frequency Division-by-Three Optical Parametric Oscillator

Applied Sciences, 2014
We report a multi-watt broadband continuous-wave multi-harmonic optical comb based on a frequency division-by-three singly-resonant optical parametric oscillator.
Yen-Yin Lin, Po-Shu Wu, Hsiu-Ru Yang, Jow-Tsong Shy, A. H. Kung   +4 more
doaj   +1 more source

Mutual optical injection locking dynamics between a terahertz single-mode laser and a frequency comb laser [PDF]

APL Photonics
Frequency combs are powerful tools for precision metrology, spectroscopy, and communications. In the terahertz (THz) domain, the quantum cascade laser (QCL) offers an on-chip platform for self-started comb generation via four-wave mixing.
Shumin Wu, Xuhong Ma, Guibin Liu, Ziping Li, Kang Zhou, Binbin Liu, Xinran Liu, Xianglong Bi, Yanming Lu, Lulu Zheng, Wenjian Wan, Dingding Ren, Hua Li   +12 more
doaj   +1 more source

Power-Efficient Kerr Frequency Comb Based Tunable Optical Source

IEEE Photonics Journal, 2017
We designed and demonstrated a power-efficient highly integrated photonic system, requiring a total power consumption of 1.7 W and producing a spectrally pure coherent optical signal with a wavelength range of 23 nm in the C-band.
S. Arafin, A. Simsek, S.-K. Kim, W. Liang, D. Eliyahu, G. Morrison, M. Mashanovitch, A. Matsko, L. Johansson, L. Maleki, M. J. Rodwell, L. A. Coldren   +11 more
doaj   +1 more source

Spectral Broadening in a Continuously Pumped Singly Resonant Second-Harmonic Cavity

Applied Sciences, 2021
Optical frequency comb synthesizers with a wide spectral range are an essential tool for many research areas such as spectroscopy, precision metrology, optical communication, and sensing.
Simona Mosca, Tobias Hansson, Maria Parisi   +2 more
doaj   +1 more source

Optical pump assisted broadband terahertz frequency comb

AIP Advances, 2021
A broadband terahertz (THz) frequency comb assisted by an optical pump in THz quantum cascade lasers (QCLs) is investigated theoretically and numerically through a Maxwell–Bloch model combined with the coupled wave theory.
Kai Wang, Ning Yang, Peng Bai, Weidong Chu, Yuanyuan Li, Jian Wang   +5 more
doaj   +1 more source

Optical Frequency Combs in Quadratically Nonlinear Resonators [PDF]

Micromachines, 2020
Optical frequency combs are one of the most remarkable inventions in recent decades. Originally conceived as the spectral counterpart of the train of short pulses emitted by mode-locked lasers, frequency combs have also been subsequently generated in continuously pumped microresonators, through third-order parametric processes.
Ricciardi I, Mosca S, Parisi M, Leo F, Hansson T, Erkintalo M, Maddaloni P, De Natale P, Wabnitz S, De Rosa M   +9 more
openaire   +6 more sources

Controllable Kerr and Raman-Kerr frequency combs in functionalized microsphere resonators

Nanophotonics, 2019
Optical frequency comb (OFC) based on the whispering-gallery-mode microresonator has various potential applications in fundamental and applied areas. Once the solid microresonator is fabricated, its structure parameters are generally unchanged. Therefore,
Zhu Song, Shi Lei, Ren Linhao, Zhao Yanjing, Jiang Bo, Xiao Bowen, Zhang Xinliang   +6 more
doaj   +1 more source

Control of Frequency Combs with Passive Resonators

Sensors, 2023
Tailored optical frequency combs are generated by nesting passive etalons within mode-locked oscillators. In this work, the oscillator generates a comb of 6.8 GHz with 106 MHz side-bands.
James Hendrie, Ning Hsu, Jean-Claude Diels   +2 more
doaj   +1 more source