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Your search keyword '"Hee Su Park"' showing total 3 results
Start Over Author "Hee Su Park" Journal optics letters
3 results on '"Hee Su Park"'

1. Measurement of bending-induced birefringence in a hollow-core photonic crystal fiber

Author

Byoung Yoon Kim, Hee Su Park, Dongyun Chung, and Fabian Rotermund

Subjects
Hollow core, Quantitative Biology::Biomolecules, Birefringence, Materials science, Fast axis, Scanning electron microscope, business.industry, Inverse-square law, Bend radius, Physics::Optics, 02 engineering and technology, 021001 nanoscience & nanotechnology, Polarization (waves), 01 natural sciences, Atomic and Molecular Physics, and Optics, 010309 optics, Optics, 0103 physical sciences, Physics::Accelerator Physics, 0210 nano-technology, business, Photonic-crystal fiber
Abstract

We report the measurement of bending-induced birefringence in the presence of large intrinsic birefringence in a hollow-core photonic crystal fiber (HC-PCF). The fast axis of bending-induced birefringence was found to be normal to the bending plane, in contrast to the conventional fiber case. The dependence of the induced birefringence on the bending radius was also different from the typical inverse square law. Possibilities and design criteria for polarization controllers using bending-induced birefringence in HC-PCFs are presented.

Published
2019

2. Apodization of elliptical-core two-mode fiber acousto-optic filter based on acoustic polarization control

Author

Hee Su Park, Hyun Chul Park, and Byoung Yoon Kim

Subjects
Physics, Birefringence, Optical fiber, business.industry, Physics::Optics, Polarization-maintaining optical fiber, Polarization (waves), Optical switch, Atomic and Molecular Physics, and Optics, law.invention, Optics, Apodization, law, Phase velocity, business, Optical filter
Abstract

We propose and demonstrate a novel apodization technique for an elliptical-core two-mode fiber acousto-optic filter by twisting the fiber and adjusting the acoustic polarization. The sidelobe suppression in the filter spectrum was improved from -9.7 to -15.5 dB. A theoretical analysis that includes acoustic birefringence explains the experimental results with good agreement.

Published
2005

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