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Hou H, Ning T, Ma C, Wang Y, Zhang D, Wang W, Gu Z, Jiang W, Pei L. Self-similar pulse compression in a tapered Pb-silicate photonic crystal fiber at 2 µm. APPLIED OPTICS 2023; 62:9299-9306. [PMID: 38108701 DOI: 10.1364/ao.503497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 11/13/2023] [Indexed: 12/19/2023]
Abstract
We report a 2-µm all-fiber nonlinear pulse compressor based on a tapered Pb-silicate photonic crystal fiber (PCF), which is capable of achieving large compression with low pedestal energy. A tapered Pb-silicate photonic crystal fiber with increased nonlinear coefficients is proposed for achieving self-similar pulse compression (SSPC) at 2 µm. The dynamic evolution of the fundamental order soliton is numerically analyzed based on the designed tapered fiber. After pulse compression in a tapered fiber with a length of 2.2 m, an initial 1.76 ps pulse can be compressed to 88 fs, increasing the peak power from 4.4 to 86 W with a compression factor of 20 and a quality factor of 98%. The results reveal that exponential variation yields superior compression performance and provides a promising solution for generating high-power femtosecond pulses at 2 µm.
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Castelló-Lurbe D. Breaking fundamental noise limitations to supercontinuum generation. OPTICS LETTERS 2022; 47:1299-1302. [PMID: 35290298 DOI: 10.1364/ol.452104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 01/31/2022] [Indexed: 06/14/2023]
Abstract
Supercontinuum generation in the anomalous group-velocity dispersion regime is widely considered to be inherently unstable against input pulse fluctuations. This constraint has compelled a coherent supercontinuum to be triggered by femtosecond pulses. In this work, conditions for breaking this fundamental limitation are analytically derived and realized in a silicon waveguide by exploiting the Kerr nonlinearity dispersion. On this basis, coherent supercontinuum generation with picosecond pulses and anomalous group-velocity dispersion is numerically demonstrated, which crosses a long-standing frontier in nonlinear optics.
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Cheng Y, Lai J, Yuan J, Mei C, Zhou X, Wu Q, Liu B, Yan B, Wang K, Yu C, Sang X. Highly coherent and multi-octave mid-infrared supercontinuum generations in a reverse-strip AlGaAs waveguide with three zero-dispersion wavelengths. APPLIED OPTICS 2021; 60:9994-10001. [PMID: 34807192 DOI: 10.1364/ao.440682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 10/11/2021] [Indexed: 06/13/2023]
Abstract
In this paper, a reverse-strip AlGaAs waveguide with three zero-dispersion wavelengths (ZDWs) is designed. The corresponding three ZDWs are located at 3.74, 6.56, and 8.89 µm. The nonlinearity coefficient of the proposed reverse-strip AlGaAs waveguide is calculated as 2.09W-1m-1 at wavelength 4.9 µm. The effects of pump pulse parameters, waveguide length, and noise coefficient on the nonlinear dynamics of supercontinuum (SC) generation are investigated. When the hyperbolic secant pump pulse with a wavelength of 4.9 µm, peak power of 900 W, and duration of 100 fs is launched into the proposed waveguide and propagated after a 3 mm length, highly coherent and multi-octave mid-infrared (MIR) SC spanning from 2.2 to 14.5 µm (more than 2.7 octaves, at -40dB level) is generated. Finally, a possible fabrication process of the reverse-strip AlGaAs waveguide is introduced. Our research results have important applications in MIR photonics, MIR spectroscopy, optical precision measurement, and more.
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Oliver R, Okawachi Y, Ji X, Johnson AR, Klenner A, Lipson M, Gaeta AL. Soliton-effect compression of picosecond pulses on a photonic chip. OPTICS LETTERS 2021; 46:4706-4709. [PMID: 34525087 DOI: 10.1364/ol.436016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Accepted: 08/27/2021] [Indexed: 06/13/2023]
Abstract
We report soliton-effect pulse compression of low energy (∼25pJ), picosecond pulses on a photonic chip. An ultra-low-loss, dispersion-engineered 40-cm-long waveguide is used to compress 1.2-ps pulses by a factor of 18, which represents, to our knowledge, the largest compression factor yet experimentally demonstrated on-chip. Our scheme allows for interfacing with an on-chip picosecond source and offers a path towards a fully integrated stabilized frequency comb source.
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Chen J, Wang J, Yu Q, Wang T, Zhang Y, Chen C, Li C, Wang Z, Zhu S, Ding X, Wang L, Wu J, Zhang K, Zhou P, Jiang Z. Sub-Band Gap Absorption and Optical Nonlinear Response of MnPSe 3 Nanosheets for Pulse Generation in the L-Band. ACS APPLIED MATERIALS & INTERFACES 2021; 13:13524-13533. [PMID: 33706518 DOI: 10.1021/acsami.0c21411] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Two-dimensional (2D) materials have attracted extensive attention for use in fiber lasers for pulse generation due to their unique nonlinear optical properties. While 2D materials with tunable band gaps hold promise as versatile saturable absorber materials, their L-band (long-band) pulse generation capability remains challenging. Metal phosphorus trichalcogenides (MPX3) have recently attracted the attention of researchers and shown potential for sub-band gap saturable absorption in the L-band due to their high diversity of chemical components and band structural complexity. Herein, high-quality MnPSe3 is synthesized and exhibits broad-band linear and nonlinear absorption with the modulation depth and saturation intensity of 5.4% and 0.295 MW/cm2, respectively. Moreover, a stable passive pulse generation in the L-band is demonstrated in a fiber laser. The wavelengths of the passively pulsed laser at different pump powers are recorded, featuring a fixed central wavelength located at around 1602 nm with a maximum output power of 19.54 mW. This research promotes the realization of L-band pulsed lasers based on 2D materials, inspiring further exploration of the unique properties of the MPX3 family.
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Affiliation(s)
- Jie Chen
- School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
- CAS Key Laboratory of Nanophotonic Materials and Devices & Key Laboratory of Nanodevices and Applications, i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences, Suzhou 215123, China
| | - Jin Wang
- College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, China
| | - Qiang Yu
- College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, China
- CAS Key Laboratory of Nanophotonic Materials and Devices & Key Laboratory of Nanodevices and Applications, i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences, Suzhou 215123, China
| | - Tao Wang
- College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, China
| | - Yan Zhang
- CAS Key Laboratory of Nanophotonic Materials and Devices & Key Laboratory of Nanodevices and Applications, i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences, Suzhou 215123, China
| | - Cheng Chen
- School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
- CAS Key Laboratory of Nanophotonic Materials and Devices & Key Laboratory of Nanodevices and Applications, i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences, Suzhou 215123, China
| | - Chang Li
- CAS Key Laboratory of Nanophotonic Materials and Devices & Key Laboratory of Nanodevices and Applications, i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences, Suzhou 215123, China
| | - Zhiqiang Wang
- Advanced Photonic Technology Lab, College of Electronic and Optical Engineering & College of Microelectronics, Nanjing University of Posts and Telecommunications, Nanjing 210023, China
| | - Sicong Zhu
- College of Science and Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Xianguang Ding
- Centre for Advanced 2D Materials, Graphene Research Centre, National University of Singapore, 117576 Singapore
| | - Linjun Wang
- School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
| | - Jian Wu
- College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, China
| | - Kai Zhang
- CAS Key Laboratory of Nanophotonic Materials and Devices & Key Laboratory of Nanodevices and Applications, i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences, Suzhou 215123, China
| | - Pu Zhou
- College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, China
| | - Zongfu Jiang
- College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, China
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Malinowski M, Bustos-Ramirez R, Tremblay JE, Camacho-Gonzalez GF, Wu MC, Delfyett PJ, Fathpour S. Towards On-Chip Self-Referenced Frequency-Comb Sources Based on Semiconductor Mode-Locked Lasers. MICROMACHINES 2019; 10:E391. [PMID: 31212675 PMCID: PMC6631226 DOI: 10.3390/mi10060391] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 06/04/2019] [Accepted: 06/05/2019] [Indexed: 11/16/2022]
Abstract
Miniaturization of frequency-comb sources could open a host of potential applications in spectroscopy, biomedical monitoring, astronomy, microwave signal generation, and distribution of precise time or frequency across networks. This review article places emphasis on an architecture with a semiconductor mode-locked laser at the heart of the system and subsequent supercontinuum generation and carrier-envelope offset detection and stabilization in nonlinear integrated optics.
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Affiliation(s)
- Marcin Malinowski
- CREOL, The College of Optics and Photonics, University of Central Florida, Orlando, FL 32816, USA.
| | - Ricardo Bustos-Ramirez
- CREOL, The College of Optics and Photonics, University of Central Florida, Orlando, FL 32816, USA.
| | - Jean-Etienne Tremblay
- Department of Electrical Engineering and Computer Sciences, University of California, Berkeley, CA 94720, USA.
| | | | - Ming C Wu
- Department of Electrical Engineering and Computer Sciences, University of California, Berkeley, CA 94720, USA.
| | - Peter J Delfyett
- CREOL, The College of Optics and Photonics, University of Central Florida, Orlando, FL 32816, USA.
- Department of Electrical and Computer Engineering, University of Central Florida, Orlando, FL 32816, USA.
| | - Sasan Fathpour
- CREOL, The College of Optics and Photonics, University of Central Florida, Orlando, FL 32816, USA.
- Department of Electrical and Computer Engineering, University of Central Florida, Orlando, FL 32816, USA.
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Xu F, Yuan J, Mei C, Yan B, Zhou X, Wu Q, Wang K, Sang X, Yu C, Farrell G. Highly coherent supercontinuum generation in a polarization-maintaining CS 2-core photonic crystal fiber. APPLIED OPTICS 2019; 58:1386-1392. [PMID: 30874022 DOI: 10.1364/ao.58.001386] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Accepted: 01/15/2019] [Indexed: 06/09/2023]
Abstract
In this paper, we design a polarization-maintaining CS2-core photonic crystal fiber (PM-CCPCF). The two air holes in the x direction are infiltrated with C2H5OH in order to introduce birefringence. By optimizing the structure parameters of the PM-CCPCF, it is demonstrated that the x-polarization fundamental mode has an all-normal dispersion profile and the corresponding y-polarization fundamental mode has an anomalous dispersion profile for a pump wavelength of 1.76 μm. Then, we investigate the supercontinuum (SC) generations when different fiber lengths, pump peak powers, and pump pulse widths are chosen, respectively. Simulation results show that for the x-polarization and y-polarization fundamental modes, highly coherent SCs can be generated by appropriately choosing the fiber length and pump pulse parameters. Finally, nonlinear propagation dynamics are analysed when the optimized fiber length and pump pulse parameters are used. The bandwidth of the SCs generated for the x-polarization and y-polarization fundamental modes can be up to 0.82 and 1.26 octave, respectively.
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Huang C, Liao M, Bi W, Li X, Wang L, Xue T, Zhang L, Chen D, Hu L, Fang Y, Gao W. Asterisk-shaped microstructured fiber for an octave coherent supercontinuum in a sub-picosecond region. OPTICS LETTERS 2018; 43:486-489. [PMID: 29400821 DOI: 10.1364/ol.43.000486] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 12/22/2017] [Indexed: 06/07/2023]
Abstract
We selected two thermally matched silicate glasses with fair refractive index contrast and developed an asterisk-shaped all-solid microstructured optical fiber. The fiber presents a low, ultra-flat, and all-normal dispersion in a wide wavelength range, allowing for the generation of an octave-spanning coherent supercontinuum (SC) in a 20 dB dynamic range with 0.5 ps pump pulses at 1.55 μm. This result improves pump pulse duration that is only ∼100 fs, related to the broadband and highly coherent SC generation in fibers with all-normal dispersion. This enables broadband SC sources with all-fiber, high-power, and highly coherent properties.
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Mei C, Li F, Yuan J, Kang Z, Zhang X, Yan B, Sang X, Wu Q, Zhou X, Zhong K, Wang L, Wang K, Yu C, Wai PKA. Comprehensive analysis of passive generation of parabolic similaritons in tapered hydrogenated amorphous silicon photonic wires. Sci Rep 2017. [PMID: 28630483 PMCID: PMC5476606 DOI: 10.1038/s41598-017-03840-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Parabolic pulses have important applications in both basic and applied sciences, such as high power optical amplification, optical communications, all-optical signal processing, etc. The generation of parabolic similaritons in tapered hydrogenated amorphous silicon photonic wires at telecom (λ ~ 1550 nm) and mid-IR (λ ≥ 2100 nm) wavelengths is demonstrated and analyzed. The self-similar theory of parabolic pulse generation in passive waveguides with increasing nonlinearity is presented. A generalized nonlinear Schrödinger equation is used to describe the coupled dynamics of optical field in the tapered hydrogenated amorphous silicon photonic wires with either decreasing dispersion or increasing nonlinearity. The impacts of length dependent higher-order effects, linear and nonlinear losses including two-photon absorption, and photon-generated free carriers, on the pulse evolutions are characterized. Numerical simulations show that initial Gaussian pulses will evolve into the parabolic pulses in the waveguide taper designed.
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Affiliation(s)
- Chao Mei
- State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, P.O. Box72 (BUPT), 100876, Beijing, China
| | - Feng Li
- Photonics Research Centre, Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong.,Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, 518057, China
| | - Jinhui Yuan
- State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, P.O. Box72 (BUPT), 100876, Beijing, China. .,Photonics Research Centre, Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong. .,Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, 518057, China.
| | - Zhe Kang
- Photonics Research Centre, Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong. .,Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, 518057, China.
| | - Xianting Zhang
- Photonics Research Centre, Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Binbin Yan
- State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, P.O. Box72 (BUPT), 100876, Beijing, China
| | - Xinzhu Sang
- State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, P.O. Box72 (BUPT), 100876, Beijing, China
| | - Qiang Wu
- Department of Physics and Electrical Engineering, Northumbria University, Newcastle upon Tyne, NE1 8ST, United Kingdom
| | - Xian Zhou
- Photonics Research Centre, Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Kangping Zhong
- Photonics Research Centre, Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Liang Wang
- Department of Electronic Engineering, The Chinese University of Hong Kong, Shatin, NT, Hong Kong
| | - Kuiru Wang
- State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, P.O. Box72 (BUPT), 100876, Beijing, China
| | - Chongxiu Yu
- State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, P.O. Box72 (BUPT), 100876, Beijing, China
| | - P K A Wai
- Photonics Research Centre, Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong.,Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, 518057, China
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Yan D, Li X, Zhang S, Han M, Han H, Yang Z. L-band wavelength-tunable dissipative soliton fiber laser. OPTICS EXPRESS 2016; 24:739-748. [PMID: 26832459 DOI: 10.1364/oe.24.000739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A tunable L-band dissipative soliton (DS) fiber laser with nonlinear polarization rotation (NPR) playing the roles of both a saturable absorber (SA) and a tunable filter has been demonstrated experimentally and numerically. By appropriate adjustment of the states of the polarization controllers (PCs) and the pump power, DSs with continuously tunable wavelengths have been observed over the wavelength range from 1583.0 to 1602.4 nm with a 3-dB spectral bandwidth of around 20 nm and from 1581.9 nm to 1602.6 nm with a 3-dB spectral bandwidth of around 4 nm. In addition, we have observed that by increasing the pump power, the 3-dB spectral bandwidth of the DS could be increased without pulse breaking. Numerical results for the characteristics of the DSs are in accord with the experimental data.
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Klimczak M, Soboń G, Kasztelanic R, Abramski KM, Buczyński R. Direct comparison of shot-to-shot noise performance of all normal dispersion and anomalous dispersion supercontinuum pumped with sub-picosecond pulse fiber-based laser. Sci Rep 2016; 6:19284. [PMID: 26759188 PMCID: PMC4725351 DOI: 10.1038/srep19284] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Accepted: 12/07/2015] [Indexed: 11/24/2022] Open
Abstract
Coherence of supercontinuum sources is critical for applications involving characterization of ultrafast or rarely occurring phenomena. With the demonstrated spectral coverage of supercontinuum extending from near-infrared to over 10 μm in a single nonlinear fiber, there has been a clear push for the bandwidth rather than for attempting to optimize the dynamic properties of the generated spectrum. In this work we provide an experimental assessment of the shot-to-shot noise performance of supercontinuum generation in two types of soft glass photonic crystal fibers. Phase coherence and intensity fluctuations are compared for the cases of an anomalous dispersion-pumped fiber and an all-normal dispersion fiber. With the use of the dispersive Fourier transformation method, we demonstrate that a factor of 100 improvement in signal-to-noise ratio is achieved in the normal-dispersion over anomalous dispersion-pumped fiber for 390 fs long pump pulses. A double-clad design of the photonic lattice of the fiber is further postulated to enable a pump-related seeding mechanism of normal-dispersion supercontinuum broadening under sub-picosecond pumping, which is otherwise known for similar noise characteristics as modulation instability driven, soliton-based spectra.
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Affiliation(s)
- Mariusz Klimczak
- Glass Department, Institute of Electronic Materials Technology, Wolczynska 133, 01-919 Warsaw, Poland
| | - Grzegorz Soboń
- Laser &Fiber Electronics Group, Wroclaw University of Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland
| | - Rafał Kasztelanic
- Glass Department, Institute of Electronic Materials Technology, Wolczynska 133, 01-919 Warsaw, Poland
| | - Krzysztof M Abramski
- Laser &Fiber Electronics Group, Wroclaw University of Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland
| | - Ryszard Buczyński
- Glass Department, Institute of Electronic Materials Technology, Wolczynska 133, 01-919 Warsaw, Poland.,Faculty of Physics, University of Warsaw, Pasteura 7, 02-093 Warsaw, Poland
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Akhmediev N, Kartashov Y. Nonlinear Photonics 2014: introduction. OPTICS EXPRESS 2015; 23:484-491. [PMID: 25835694 DOI: 10.1364/oe.23.000484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
International Conference "Nonlinear Photonics-2014" took place in Barcelona, Spain on July 27-31, 2014. It was a part of the "Advanced Photonics Congress" which is becoming a traditional notable event in the world of photonics. The current focus issue of Optics Express contains contributions from the participants of the Conference and the Congress. The articles in this focus issue by no means represent the total number of the congress contributions (around 400). However, it demonstrates wide range of topics covered at the event. The next conference of this series is to be held in 2016 in Australia, which is the home of many researchers working in the field of photonics in general and nonlinear photonics in particular.
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