期刊
OPTICS LETTERS
卷 37, 期 21, 页码 4410-4412出版社
OPTICAL SOC AMER
DOI: 10.1364/OL.37.004410
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资金
- National Institutes of Health [R01 CA133148, R21 RR024415]
We demonstrate an intermodal Cerenkov radiation effect in a higher-order-mode (HOM) fiber with a mode crossing (i.e., two guided modes having the same propagation constant at the same wavelength). Lambda frequency-shifted soliton in the vicinity of the mode-crossing wavelength emits a phase-matched dispersive wave in a different propagation mode. We develop a theoretical explanation for this nonlinear optical effect and demonstrate that the mode crossing in HOM fibers can be utilized to achieve simultaneous wavelength and mode conversion; the strength of this intermodal nonlinear interaction can be tuned by controlled fiber bending. (C) 2012 Optical Society of America
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