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Optical frequency-to-time mapping using a phase-modulated frequency-shifting loop
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DOI：10.1364/OL.425460.png)
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A real-time spectral analysis is demonstrated experimentally with a frequency-shifting loop that includes an electrooptic phase modulator. When a single-frequency laser seeds the loop, pulse doublets are emitted if the integer Talbot condition is satisfied. With a polychromatic seed, frequency-to-time mapping is demonstrated, namely the temporal output of the loop maps the spectral power of the seed, with a resolution of 400 kHz. Due to the phase modulation function, the mapping is shown to be nonlinear. The results are in agreement with the theoretical predictions of [H. Yang et al., J. Opt. Soc. Am. B 37, 3162 (2020)]. The extension to integrated systems for applications is discussed. (C) 2021 Optical Society of America
Keyword:
SPECTRUM ANALYZER
TRANSFORMATION
期刊
IF:
3.3
论文数:
4.0W
被引数:
7.6W
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引用论文
Pulse doublets generated by a frequency-shifting loop containing an electro-optic amplitude modulator.png)
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