Search Results - "Oh-Jang Kwon"
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1
High-resolution spectral-domain optical coherence tomography with microfiber coupler
Published in 2012 Conference on Lasers and Electro-Optics (CLEO) (01-05-2012)“…We demonstrate a spectral-domain optical coherence tomography (SD-OCT) using a microfiber coupler with an insertion loss of ~0.5-dB over 900-nm bandwidth. The…”
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Conference Proceeding
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2
Long distance fiber Bragg grating strain sensor interrogation using a high speed Raman-based Fourier domain mode-locked fiber laser with recycled residual Raman pump
Published in Optics express (03-06-2013)“…We propose a novel fiber Bragg grating (FBG) sensor interrogation using a Raman-based Fourier-domain mode locking (FDML) fiber laser for a high speed and long…”
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Journal Article -
3
Fabrication of micro-ridge long-period gratings inscribed on polarization-maintaining fibers
Published in Nanoscale research letters (20-01-2014)“…We experimentally investigated a simple and new technique for the fabrication of micro-ridge long-period gratings (MRLPGs) based on polarization-maintaining…”
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Journal Article -
4
Grating micro-dot patterned light guide plates for LED backlights
Published in Optics express (19-03-2007)“…A novel LED backlight unit implementing a light guide plate (LGP) with a two-dimensional array of grating micro-dots is proposed. By optimizing grating-vector…”
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Journal Article -
5
Nanophotonic identification of defects buried in three-dimensional NAND flash memory devices
Published in Nature electronics (01-01-2018)“…Advances in nanophotonics and plasmonics have led to the creation of a variety of innovative optical components and devices. However, the development of…”
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Journal Article -
6
All-fiber spectral-domain optical coherence tomography with high resolution by using a PCF-based broadband coupler and a k-domain linearization method
Published in Journal of the Korean Physical Society (01-11-2012)“…We demonstrate spectral-domain optical coherence tomography (SD-OCT) with high axial resolution and high image acquisition speed, which is realized by using a…”
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Journal Article -
7
Fabrication of a micro-ridge long-period fiber grating inscribed on a photonic crystal fiber
Published in CLEO: 2013 (01-06-2013)“…Micro-ridge long-period fiber grating (MRLPFG) inscribed on a photonic crystal fiber was proposed and experimentally demonstrated. Transmission characteristics…”
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Conference Proceeding -
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Interrogation of fiber Bragg grating sensor for long distance measurement using Raman-based Fourier domain mode-locked fiber laser with recycled residual Raman pump
Published in 2012 17th Opto-Electronics and Communications Conference (01-07-2012)“…We propose a fiber Bragg grating sensor interrogation system using a Raman-based Fourier domain mode locking fiber laser. To improve transmission efficiency of…”
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Conference Proceeding -
9
Transmission characteristics of a micro-ridge long-period fiber gratings inscribed on a polarization-maintaining fiber
Published in 2012 17th Opto-Electronics and Communications Conference (01-07-2012)“…Micro-ridge long-period fiber gratings (MRLPFGs) inscribed on a polarization-maintaining fiber (PMF) were demonstrated. The cladding region of the PMFs was…”
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Conference Proceeding -
10
In-line tunable Mach-Zehnder interferometer based on cascaded micro-ridge long period fiber gratings
Published in 16th Opto-Electronics and Communications Conference (01-07-2011)“…An in-line tunable Mach-Zehnder interferometer (MZI) based on cascaded micro-ridge long-period fiber gratings (MRLPFGs) is proposed and experimentally…”
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Conference Proceeding -
11
Investigation on temperature sensitivity of D-shaped fibers by manufacturing specified surface structure
Published in 2009 Asia Communications and Photonics conference and Exhibition (ACP) (01-11-2009)“…Temperature sensitivities of D-shaped fibers with specified surface structures such as thin film and periodic grating are investigated. The photo resister…”
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Conference Proceeding -
12
Tunable multiwavelength Raman fiber ring laser based on a voltage controllable coil heater
Published in Asia Communications and Photonics Conference and Exhibition (01-12-2010)“…A practical scheme for a tunable multiwavelength Raman ring laser incorporating a two phase-shifted fiber Bragg grating is investigated. The proposed…”
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Conference Proceeding -
13
Tunable multiwavelength Raman fiber laser using a misaligned long-period fiber grating
Published in 16th Opto-Electronics and Communications Conference (01-07-2011)“…A thermally tunable multiwavelength Raman fiber laser based on a misaligned long-period fiber grating is investigated. The proposed multiwavelength Raman laser…”
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Conference Proceeding -
14
Direction-sensitive fiber-optic bending sensor using a sampled chirped fiber Bragg grating
Published in 2009 14th OptoElectronics and Communications Conference (01-07-2009)“…A simple and practical scheme for a temperature insensitive direction-sensitive bending sensor with the sensitivity of plusmn0.63 nm/m -1 is proposed…”
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Conference Proceeding -
15
Fabrication of a surface long-period fiber grating based on a D-shaped photonic crystal fiber
Published in 2009 14th OptoElectronics and Communications Conference (01-07-2009)“…A surface long-period fiber grating based on a D-shaped photonic crystal fiber (PCF) is proposed and their optical properties such as temperature and ambient…”
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Conference Proceeding -
16
Birefringent interferometer-based strain sensor with temperature insensitivity
Published in 2009 14th OptoElectronics and Communications Conference (01-07-2009)“…A simple scheme for a temperature-insensitive strain sensor based on a birefringent interferometer is investigated. The strain sensitivity is measured to be…”
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Conference Proceeding -
17
The transmission characteristic of Sangac loop interferometer based on single polarization fiber
Published in Asia Communications and Photonics Conference and Exhibition (01-12-2010)“…We were experimental demonstrated the transmission characteristic of Sagnac loop mirror based on single polarization fiber (SPF). The interference fringe of…”
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Conference Proceeding -
18
A novel fabrication technique of corrugated long-period fiber gratings for mass production and its transmission characteristic as applied mechanical force
Published in Asia Communications and Photonics Conference and Exhibition (01-12-2010)“…A new fabrication technique for corrugated long-period fiber gratings (CLPFGs) with periodic polymer microstructures is proposed. Transmission characteristics…”
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Conference Proceeding -
19
Sagnac loop interferometer based on a hybrid polarization-maintaining fiber
Published in OECC 2010 Technical Digest (01-07-2010)“…We investigate transmission characteristic of Sagnac loop interferometer based on a hybrid polarization-maintaining fiber with changes in the ambient index…”
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Conference Proceeding -
20
Structural property effect of a D-shaped fiber on nonlinear optical absorption of single-wall carbon nanotubes
Published in OECC 2010 Technical Digest (01-07-2010)“…We investigate the effect of single-wall carbon nanotubes on nonlinear optical absorption depending on properties of a D-shaped fiber, such as the distance…”
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Conference Proceeding