Generation of Raman sidebands aided by a CW Stokes signal

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• 作者：Ying Li ; Jing Hou ; Jinyong Leng ; Wenliang Wang ; Zongfu Jiang
• 关键词：Picosecond pulse ; Continuous wave Stokes signal ; Cascaded Raman sidebands
• 刊名：Optics and Laser Technology
• 出版年：June, 2014
• 年：2014
• 卷：58
• 期：Complete
• 页码：215-219
• 全文大小：751 K

文摘

We experimentally demonstrate that adding a continuous wave Stokes signal to a picosecond pulse will significantly expand the spectra or help to generate broad cascaded Raman sidebands in an index-guided photonic crystal fiber when pumping in the normal dispersion regime. The generated twelve Raman peaks, spaced by ~13.2 THz, contain four Stokes and six anti-Stokes peaks, and spread over a broad spectrum range of 893-1491 nm. Each peak has a 3-dB line width smaller than 0.5 nm. The cascaded Raman sidebands make it promising to get the wavelength-tunable Raman sources.