Second harmonic generation in thin optical fibers via cladding modes | Zendy

Eman A. Elzahaby | Zendy; Ishac Kandas | Zendy; Moustafa H. Aly | Zendy

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Second harmonic generation in thin optical fibers via cladding modes

Author(s) -

Eman A. Elzahaby,

Ishac Kandas,

Moustafa H. Aly

Publication year - 2016

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.24.011435

Subject(s) - cladding (metalworking) , materials science , coating , optics , grating , second harmonic generation , cladding mode , optical fiber , nonlinear optics , optoelectronics , composite material , laser , polarization maintaining optical fiber , fiber optic sensor , physics

Since silica goes under the category of amorphous materials, it is difficult to investigate important processes such as second harmonic generation (SHG) in silica-based fibers. In this paper, we proposed a method for SHG relaying on cladding modes as pump modes. Cladding modes are introduced in optical fibers through tilted long period grating (T-LPG), where power of core mode is transferred into cladding modes. By functionalizing T-LPG with nonlinear coating, the interaction occurs between cladding modes and the coating material, consequently second harmonic signal (SHS) is generated with efficiency up to 0.14%.

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