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

Hideaki Furukawa; Takeshi Makino; Mohammad H. Asghari; Paul Trinh; Bahram Jalali; Xiaomin Wang; Tetsuya Kobayashi; Wai S. Man; Kwong Shing Tsang; Naoya Wada

doi:10.1117/12.2255873

22 February 2017 Billion frames per second spectrum measurement for high-repetition-rate optical pulses based on time stretching technique

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

Author Affiliations +

Proceedings Volume 10089, Real-time Measurements, Rogue Phenomena, and Single-Shot Applications II; 100890A (2017) https://doi.org/10.1117/12.2255873
Event: SPIE LASE, 2017, San Francisco, California, United States

Abstract

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 the Time Stretch Dispersive Fourier Transform. We show single-shot measurements of millions of sequential pulses at high repetition rate of 1 Giga spectra per second. Results were obtained using -100 ps/nm dispersive Fourier transform module and a 50 Gsample/s real-time digitizer of 16 GHz bandwidth. Single-shot spectroscopy of 1 GHz optical pulse train was achieved with the wavelength resolution of approximately 150 pm. This instrument is ideal for observation of complex nonlinear dynamics such as switching, mode locking and soliton dynamics in high repetition rate lasers.

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Hideaki Furukawa, Takeshi Makino, Mohammad H. Asghari, Paul Trinh, Bahram Jalali, Xiaomin Wang, Tetsuya Kobayashi, Wai S. Man, Kwong Shing Tsang, and Naoya Wada "Billion frames per second spectrum measurement for high-repetition-rate optical pulses based on time stretching technique", Proc. SPIE 10089, Real-time Measurements, Rogue Phenomena, and Single-Shot Applications II, 100890A (22 February 2017); https://doi.org/10.1117/12.2255873

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