Výsledky vyhledávání

Spectral periodicity in soliton explosions on a broadband mode-locked Yb fiber laser using time-stretch spectroscopy

Autor: Masayuki Suzuki, P.D. Trinh, Bahram Jalali, Hiroto Kuroda, Hossein Asghari, Ozdal Boyraz

Publikováno v: Optics letters. 43(8)

Experimentally, we demonstrate, to the best of our knowledge, the first observation of periodic spectrum changing via soliton explosion in a passively mode-locked fiber laser by a nonlinear polarization evolution. Using time stretch to capture 7220 c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1666bc302f2d631f0a0eecaa60b4a419
https://pubmed.ncbi.nlm.nih.gov/29652384

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Time stretch dispersive Fourier transform based single-shot pulse-by-pulse spectrum measurement using a pulse-repetition-frequency-variable gain-switched laser

Autor: Hideaki Furukawa, Takeshi Makino, Xiaomin Wang, Kwong Shing Tsang, Tetsuya Kobayashi, P.D. Trinh, Bahram Jalali, Wai Sing Man, Mohammad H. Asghari, Naoya Wada

Publikováno v: Real-time Measurements, Rogue Phenomena, and Single-Shot Applications III.

The time stretch dispersive Fourier Transform (TS-DFT) technique based on a fiber chromatic dispersion is a powerful tool for pulse-by-pulse single-shot spectrum measurement for highrepetition rate optical pulses. The distributed feedback laser diode

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fda3d1f4b076d48527dcbae455da42de
https://doi.org/10.1117/12.2289366

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Roguescope: Single-shot high-throughput spectroscopy at billion frames per second (Conference Presentation)

Autor: P.D. Trinh, Bahram Jalali, Mohammad H. Asghari

Publikováno v: Real-time Measurements, Rogue Phenomena, and Single-Shot Applications II.

The real-time measurement of fast non-repetitive events is arguably the most challenging problem in the field of instrumentation and measurement. These instruments are needed for investigating rapid transient phenomena such as chemical reactions, fas

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a47896b2f8f21869f1c38256f18bbba5
https://doi.org/10.1117/12.2256469

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Billion frames per second spectrum measurement for high-repetition-rate optical pulses based on time stretching technique

Autor: Mohammad H. Asghari, Takeshi Makino, Naoya Wada, Tetsuya Kobayashi, Kwong Shing Tsang, Bahram Jalali, Hideaki Furukawa, P.D. Trinh, Wai S. Man, Xiaomin Wang

Publikováno v: SPIE Proceedings.

Single-shot and long record length spectrum measurements of high-repetition-rate optical pulses are essential for research on nonlinear dynamics as well as for applications in sensing and communication. To achieve a continuous measurements we employ

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::22d080b6bbd86f19b0640beb3f227db9
https://doi.org/10.1117/12.2255873

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High Resolution Single-shot Time Stretch Spectroscopy with Wavelength Demultiplexer at One Billion Frames per Second

Autor: Mohammad H. Asghari, Tetsuya Kobayashi, Naoya Wada, Kwong Shing Tsang, Takeshi Makino, P.D. Trinh, Wai Sing Man, Bahram Jalali, Hideaki Furukawa, Xiaomin Wang

Publikováno v: Conference on Lasers and Electro-Optics.

To improve spectral resolution or capturable pulse-repetition-rate, we introduce a wavelength demultiplexing technique into 1-GHz pulse-by-pulse single-shot spectrum measurement based on time stretch dispersive Fourier Transform. Three times higher r

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fca457233393762cea6ef87f4f2262a7
https://doi.org/10.1364/cleo_si.2017.stu4i.6

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All-optical RF filter using amplitude inversion in a semiconductor optical amplifier

Autor: Bahram Jalali, P.D. Trinh, S. Yegnanarayanan, F. Coppinger

Publikováno v: IEEE Transactions on Microwave Theory and Techniques. 45:1473-1477

We present an all optical delay-line radio-frequency (RF) notch filter. The filter exploits cross-gain modulation in a homogeneously broadened laser medium to obtain a negative tap in an optically incoherent system. Applications including moving-targ

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6c5bd1515d6f648b61752108649416ac
https://doi.org/10.1109/22.618457

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