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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
Author(s): Hideaki Furukawa; Takeshi Makino; Xiaomin Wang; Tetsuya Kobayashi; Mohammad H. Asghari; Paul Trinh; Bahram Jalali; Wai Sing Man; Kwong Shing Tsang; Naoya Wada
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Paper Abstract

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 (DFB-LD) with the gain switch operation can flexibly change the pulse repetition frequency (PRF). In this paper, we newly introduce a semiconductor gain-switched DFB-LD operating from 1 MHz up to 1 GHz PRF into the TS-DFT based spectrum measurement system to improve the flexibility and the operability. The pulse width can be below 2 ps with a pulse compression technique. We successfully measure the spectrum of each optical pulse at 1 GHz, 100 MHz, and 10 MHz PRF, and demonstrate the flexibility of the measurement system.

Paper Details

Date Published: 15 February 2018
PDF: 6 pages
Proc. SPIE 10517, Real-time Measurements, Rogue Phenomena, and Single-Shot Applications III, 1051709 (15 February 2018); doi: 10.1117/12.2289366
Show Author Affiliations
Hideaki Furukawa, National Institute of Information and Communications Technology (Japan)
Takeshi Makino, National Institute of Information and Communications Technology (Japan)
Xiaomin Wang, Optoquest Co., Ltd. (Japan)
Tetsuya Kobayashi, Optoquest Co., Ltd. (Japan)
Mohammad H. Asghari, Loyola Marymount Univ. (United States)
Paul Trinh, Silicon Lightwave Technology, Inc. (United States)
Bahram Jalali, Univ. of California, Los Angeles (United States)
Wai Sing Man, Amonics Ltd. (Hong Kong, China)
Kwong Shing Tsang, Amonics Ltd. (Hong Kong, China)
Naoya Wada, National Institute of Information and Communications Technology (Japan)


Published in SPIE Proceedings Vol. 10517:
Real-time Measurements, Rogue Phenomena, and Single-Shot Applications III
Bahram Jalali; Daniel R. Solli; Günter Steinmeyer, Editor(s)

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