Article
Engineering, Electrical & Electronic
Vasilii Voropaev, Shangran Xie, Aleksandr Donodin, Daniil Batov, Mikhail Tarabrin, Johann Troles, Vladimir Lazarev
Summary: Researchers have successfully generated octave-spanning supercontinuum in As2S3-silica hybrid nanospike waveguides using a thulium-doped all-fiber femtosecond laser and amplifier system at a wavelength of 1.9 μm. The widest supercontinuum was obtained in the wavelength range of 1.1-2.5 μm, and it exhibited coherent characteristics throughout the entire spectral range, making it suitable for creating a self-referenced laser comb.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2023)
Article
Optics
Mulong Liu, Chengwei Gu, Xuening Fan, Zhiheng Li, Huimin Huang, Zhizhou Lu, Wei Zhao
Summary: The study introduces a dispersion-flattened technology for producing broadband and low anomalous dispersion while minimizing zero-dispersion wavelengths. This structure can be formed by nanophotonic waveguides using different material combinations, achieving flat dispersion ranging from 0 to 27 ps/nm/km across a wide range of wavelengths.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Kangzhu Zhou, Qian Li, Zhe Kang, Jiayao Huang, P. K. A. Wai
Summary: A novel on-chip cascaded structure utilizing a microresonator and a slot waveguide for dual pump supercontinuum generation is proposed. By employing a low-power single continuous wave pump, dissipative Kerr soliton is successfully generated and serves as a dual pump seed for supercontinuum generation in the following slot waveguide. Numerical simulations have demonstrated the generation of 1.56 octave-spanning supercontinuum within the wavelength range of 1 to 3 μm.
RESULTS IN PHYSICS
(2021)
Article
Optics
Ming-Hsiung Wu, Yan-Jou Lin, Fredrik Laurell, Yen-Chieh Huang
Summary: The researchers successfully generated a visible and near-infrared super-continuum in a monolithic KTP crystal using a high-gain, ultra-broadband Raman oscillator. By maximizing Raman gain and aligning Stokes polarization perpendicular to the plane of reflections, the oscillator produced quasi-mode-locked Stokes pulses across the visible and near-infrared spectra.
Article
Optics
Guan-Hong Li, Chieh Huang, Feng-Jung Kao, Min-Hsiung Shih, Hao-Chung Kuo, Yi-Jen Chiu, Chao-Kuei Lee
Summary: In this study, supercontinuum generation from 645.3 nm to 851 nm was demonstrated by using a high-order mode and engineering the dispersion within the high nonlinear refractive index material Ta2O5 waveguide. The results show clear potential for applications.
OPTICS AND LASER TECHNOLOGY
(2024)
Review
Optics
Yuxi Fang, Changjing Bao, Si-Ao Li, Zhi Wang, Wenpu Geng, Yingning Wang, Xu Han, Jicong Jiang, Weigang Zhang, Zhongqi Pan, Zhaohui Li, Yang Yue
Summary: Supercontinuum (SC) has wide applications in optical communications, signal processing, metrology, and spectroscopy. This paper reviews the latest progress on various nanophotonic waveguides for Supercontinuum generation (SCG), including the discussion of different materials and their properties, the consideration of waveguide properties, and the analysis of different broadening mechanisms. It also provides perspectives on the spectral coverage, dispersion curves, and novel materials for SCG in nanophotonic waveguides.
LASER & PHOTONICS REVIEWS
(2023)
Article
Optics
Irina Zhluktova, Andrei D. Zverev, Serafima A. Filatova, Vladimir A. Kamynin, Alexej A. Sysoliatin, Vladimir B. Tsvetkov
Summary: Octave-spanning supercontinuum conversion has been investigated in three different rare-earth doped fiber amplifiers. The erbium amplifier achieved an output power of 445 mW with a spectral width of 1250 nm. The thulium amplifier obtained an average output power of 390 mW and a spectral width of 569 nm. Additionally, the holmium amplifier produced an average output power of 724 mW with a spectral width of 450 nm. In all cases, the output pulse envelope did not exceed 0.72 ns.
Article
Optics
M. David, A. Dabrowska, M. Sistani, I. C. Doganlar, E. Hinkelmann, H. Detz, W. M. Weber, B. Lendl, G. Strasser, B. Hinkov
Summary: This study introduces a novel concept based on hybrid semiconductor-metal surface plasmon polariton waveguides, which exhibit experimentally demonstrated low loss and broadband characteristics. By changing the geometrical parameters, the waveguide properties can be directly controlled, making them suitable for combination with broadband mid-IR quantum cascade laser frequency combs and integrated spectroscopic sensors.
Article
Optics
B. Kibler, A. Lemiere, J. -T. Gomes, D. Gaponov, L. Lavoute, F. Desevedavy, F. Smektala
Summary: The experimental demonstration shows that supercontinuum generation with a bandwidth of 140 THz is achievable in a 10 cm-long all-normal dispersion step-index tellurite fiber pumped by a turn-key femtosecond fiber laser. By controlling soliton self-frequency shift and quasi-linear chirp, pulse duration can be compressed from 85 fs to 12 fs during nonlinear propagation.
OPTICS COMMUNICATIONS
(2021)
Article
Instruments & Instrumentation
Qimeng Lin, Tingting Gang, Chun Zhang, Baole Lu, Lei Hou, Jintao Bai
Summary: We demonstrate the generation of switchable dual-state solitons in a compact ultrashort pulse Er-doped fibre laser through experiments. An octave-spanning supercontinuum is obtained using an Er-doped fibre amplifier seeded by the self-similar soliton. By adjusting the pump power and polarization state, the generation of dual-state solitons can be switched. The amplifier compresses the pulse duration and produces a 147.2 fs ultrashort pulse with a spectral bandwidth of over 650 nm. The maximum output power of the laser system is 195 mW. Our experimental results open up the possibility of achieving supercontinuum generation based on switchable dual-state solitons in a standard single-mode fibre-format energetic ultrashort laser system.
INFRARED PHYSICS & TECHNOLOGY
(2023)
Article
Optics
Lutong Cai, Jingwei Li, Ruixuan Wang, Qing Li
Summary: The team reported the first demonstration of octave-spanning microcombs on a silicon carbide platform. The broadband operation was achieved through optimized nanofabrication and dispersion engineering, resulting in a microcomb spectrum covering a wavelength range from 1100 nm to 2400 nm.
PHOTONICS RESEARCH
(2022)
Article
Optics
Xincai Diao, Runzhi Chen, Guoqing Chang
Summary: SESS technology can generate wavelength-tunable femtosecond pulses with a wide tuning range and high energy conversion efficiency. By optimizing dispersion parameters, a larger tuning range and higher conversion efficiency can be achieved.
Article
Optics
Ting Wang, Ji-Liang Wu, Xu-Cheng Zhang, Yang Shi, Yue-De Yang, Jin-Long Xiao, Da-Ming Zhang, Guan-Shi Qin, Yong-Zhen Huang
Summary: In this paper, we demonstrate the generation of octave-spanning optical frequency combs with a repetition rate of tens of GHz for the first time using a four-wave mixing effect seeded by a dual-mode microcavity laser. Wideband optical frequency combs are generated using a Brillouin nonlinear fiber loop and shaped through optical filtering. The high-repetition-rate pulse train is amplified and compensated for dispersion, resulting in an octave optical comb spanning from 1100 to 2200 nm. We achieve frequency combs with octave bandwidths and repetition rates using dual-mode microcavity lasers.
PHOTONICS RESEARCH
(2022)
Article
Engineering, Electrical & Electronic
Ji-Liang Wu, Xiaohui Guo, Yadong Jiao, Xucheng Zhang, Ting Wang, Yue-De Yang, Jin-Long Xiao, Daming Zhang, Guanshi Qin, Yong-Zhen Huang
Summary: In this study, an octave-spanning 10-GHz optical comb is achieved using a directly-modulated microlaser, and the optical pulse width is further reduced to 140 fs in a fiber through optimal chirp compensation.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Optics
Rezki Becheker, Myriam Bailly, Sai Idlahcen, Thomas Godin, Bruno Gerard, Hugo Delahaye, Geoffroy Granger, Sebastien Fevrier, Arnaud Grisard, Eric Lallier, Ammar Hideur
Summary: We report on the mid-infrared optical parametric generation experiment in the 4-5 μm and 9-12 μm bands using custom-designed orientation-patterned gallium arsenide (OP-GaAs) rib waveguides. The pump source is driven by an ultrafast femtosecond fiber laser system seeded by a mode-locked fluoride fiber laser, and it can be tuned between 2.8 and 3.2 μm using a soliton self-frequency shifting stage. The OP-GaAs crystals with single TE and TM modes feature quasi-phase-matched grating periods of 85 and 90 μm and different transverse sizes, allowing for wide spectral tunability.
Review
Biotechnology & Applied Microbiology
Marsela Jorgolli, Tanner Nevill, Aaron Winters, Irwin Chen, Su Chong, Fen-Fen Lin, Marissa Mock, Ching Chen, Kim Le, Christopher Tan, Philip Jess, Han Xu, Agi Hamburger, Jennitte Stevens, Trent Munro, Ming Wu, Philip Tagari, Les P. Miranda
BIOTECHNOLOGY AND BIOENGINEERING
(2019)
Article
Optics
Youmin Wang, Guangya Zhou, Xiaosheng Zhang, Kyungmok Kwon, Pierre-A. Blanche, Nicholas Triesault, Kyoung-sik Yu, Ming C. Wu
Article
Optics
Tae Joon Seok, Kyungmok Kwon, Johannes Henriksson, Jianheng Lu, Ming C. Wu
Article
Physics, Applied
Kevin Han, Geun Ho Ahn, Joy Cho, Der-Hsien Lien, Matin Amani, Sujay B. Desai, George Zhang, Hyungjin Kim, Niharika Gupta, Ali Javey, Ming C. Wu
APPLIED PHYSICS LETTERS
(2019)
Article
Engineering, Electrical & Electronic
Andrew Michaels, Ming C. Wu, Eli Yablonovitch
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
(2020)
Article
Engineering, Electrical & Electronic
Min Teng, Amirmahdi Honardoost, Yousef Alahmadi, Sajad Saghaye Polkoo, Keisuke Kojima, He Wen, C. Kyle Renshaw, Patrick LiKamWa, Guifang Li, Sasan Fathpour, Reza Safian, Leimeng Zhuang
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2020)
Article
Optics
Kamal Abdelsalam, Tengfei Li, Jacob B. Khurgin, Sasan Fathpour
Review
Optics
Amirmahdi Honardoost, Kamal Abdelsalam, Sasan Fathpour
LASER & PHOTONICS REVIEWS
(2020)
Article
Optics
Bradley S. Elkus, Kamal Abdelsalam, Sasan Fathpour, Prem Kumar, Gregory S. Kanter
Article
Optics
Sean Hooten, Nicolas M. Andrade, Ming C. Wu, Eli Yablonovitch
Summary: The paper introduces a metal-dielectric antenna design that eliminates the tradeoff between spontaneous emission enhancement and radiative efficiency, greatly enhancing the rate of spontaneous emission. Additionally, this design strategy is suitable for short-distance optical communications applications.
Article
Physics, Applied
Nicolas M. Andrade, Sean Hooten, Yunjo Kim, Jeehwan Kim, Eli Yablonovitch, Ming C. Wu
Summary: The study demonstrates an efficient method to passivate the surface of III-V InP/InGaAsP/InGaAs material family using a combination of sulfur-saturated ammonium sulfide and atomic layer deposition, which successfully reduces the surface recombination velocity, leading to an improvement in the efficiency of photonic devices.
APPLIED PHYSICS LETTERS
(2021)
Article
Engineering, Electrical & Electronic
Philip Jacobson, Mizuki Shirao, Kerry Yu, Guan-Lin Su, Ming C. Wu
Summary: This article introduces a novel hybrid scheme of photonic delay-based reservoir computers (RC) that preprocess input data through convolutional layers and then process them through an optoelectronic implementation of delay-based RC. Experimental results show that the proposed scheme achieves comparable classification performance to state-of-the-art machine learning algorithms and significantly reduces model training time.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Physics, Applied
Mizuki Shirao, Daniel Klawson, Sara Mouradian, Ming C. Wu
Summary: A one-dimensional focusing grating coupler array based in silicon nitride (SiN) was proposed for trapped ion qubit manipulation. The design was optimized to achieve high directionality, small beam diameter, and low crosstalk. Additionally, the impact of fabrication errors on system performance was also investigated through simulation analysis.
JAPANESE JOURNAL OF APPLIED PHYSICS
(2022)
Article
Multidisciplinary Sciences
Xiaosheng Zhang, Kyungmok Kwon, Johannes Henriksson, Jianheng Luo, Ming C. Wu
Summary: The paper presents a 16,384-pixel LiDAR sensor with wide field of view, high resolution, narrow beam divergence, and fast operation speed. The sensor can be mass-produced and used in various applications such as autonomous cars, drones, robots, and smartphones.
Proceedings Paper
Engineering, Electrical & Electronic
Kamal Abdelsalam, Tengfei Li, Jacob B. Khurgin, Sasan Fathpour
2020 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
(2020)
