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Proceedings Paper

Site-dependent nonlinear optical properties in index-guiding photonic crystal fiber
Author(s): Masashi Nakao; Kenji Sakamaki; Mitsuru Naganuma; Masayuki Izutsu
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Paper Abstract

Site dependent nonlinear optical properties are characterized by pumping 140 fs pulses at independently addressable small quasi-cores formed by imperfection in index-guiding photonic crystal fiber (PCF). The positional assignment of pumping site onto the PCF is achieved based on the reflection method to observe in situ the waveguiding structure of PCF input face relative to the fixed focal point of the collimated laser beam. A series of input peak power dependent spectra at several small quasi-cores demonstrate visible light formation down to the violet, which are discussed in comparison with those for the center core leading to supercontinuum generation. Visible light formation at quasi-cores is principally due to an increase of the degree of anomalous dispersion by decreasing the core size. The observations presented in this work classify the nature of nonlinear optical processes through the slightly distorted PCF, leading to nonlinear optical manipulation by individual cores within the single PCF.

Paper Details

Date Published: 25 October 2004
PDF: 15 pages
Proc. SPIE 5604, Optomechatronic Micro/Nano Components, Devices, and Systems, (25 October 2004); doi: 10.1117/12.570920
Show Author Affiliations
Masashi Nakao, NTT Photonics Labs. (Japan)
Kenji Sakamaki, National Institute of Information and Communications Technology (Japan)
Mitsuru Naganuma, Teikyo Univ. of Science and Technology (Japan)
Masayuki Izutsu, National Institute of Information and Communications Technology (Japan)


Published in SPIE Proceedings Vol. 5604:
Optomechatronic Micro/Nano Components, Devices, and Systems
Yoshitada Katagiri, Editor(s)

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