1. Highly coherent red-shifted dispersive wave generation around 1.3 μm for efficient wavelength conversion.
- Author
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Xia Li, Wei Chen, Tianfeng Xue, Wanjun Bi, Weiqing Gao, Lili Hu, and Meisong Liao
- Subjects
OPTICAL wavelength conversion ,PHOTONIC crystal fibers ,YTTERBIUM ,SOLITONS ,PICOSECOND pulses ,COMPRESSORS - Abstract
This research investigates the mechanism of the optical dispersive wave (DW) and proposes a scheme that can realize an efficient wavelength conversion. In an elaborately designed photonic crystal fiber, a readily available ytterbium laser operating at ~1 μm can be transferred to the valuable 1.3 μm wavelength range. A low-order soliton is produced to concentrate the energy of the DW into the target wavelength range and improve the degree of coherence. The input chirp is demonstrated to be a factor that enhances the wavelength conversion efficiency. With a positive initial chirp, 76.6% of the pump energy in the fiber can be transferred into a spectral range between 1.24 and 1.4 μm. With the use of a grating compressor, it is possible to compress the generated coherent DW of several picoseconds into less than 90 fs. [ABSTRACT FROM AUTHOR]
- Published
- 2015
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