外文题目: Complete measurement of spatiotemporally complex multi-spatial-mode ultrashort pulses from multimode optical fibers using delay-scanned wavelength-multiplexed holography
作者: Zhu, Ping; Jafari, Rana; Jones, Travis; Trebino, Rick
刊名: Opt. Express
年: 2017 卷: 25 期: 20 页： 24015--24032
英文关键词:

BEAM SPECTRAL INTERFEROMETRY; WEAKLY GUIDING FIBERS; PHASE RETRIEVAL; AMPLITUDE
英文摘要:
We introduce a simple delay-scanned complete spatiotemporal intensity-and-phase measurement technique based on wavelength-multiplexed holography to characterize long, complex pulses in space and time. We demonstrate it using pulses emerging from multi-mode fiber. This technique extends the temporal range and spectral resolution of the single-frame STRIPED FISH technique without using an otherwise-required expensive ultranarrow-bandpass filter. With this technique, we measured the complete intensity and phase of up to ten fiber modes from a multi-mode fiber (normalized frequency V approximate to 10) over a similar to 3ps time range. Spatiotemporal complexities such as intermodal delay, modal dispersion, and material dispersion were also intuitively displayed by the retrieved results. Agreement between the reconstructed color movies and the monitored time-averaged spatial profiles confirms the validity to this delay-scanned STRIPED FISH method.


文献类型: 期刊论文
正文语种: English
收录类别: SCI
DOI: 10.1364/OE.25.024015


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