Semiconductor microlenses fabricated by one-step wet etching YS Kim, J Kim, JS Choe, YG Rob, H Jeon, JC Woo
IEEE Photonics Technology Letters 12 (5), 507-509, 2000
54 2000 Fabrication of 40 Gb/s Front‐End Optical Receivers Using Spot‐Size Converter Integrated Waveguide Photodiodes YH Kwon, JS Choe, J Kim, K Kim, KS Choi, BS Choi, HG Yun
ETRI journal 27 (5), 484-490, 2005
34 2005 Method and apparatus for transmitting and receiving coherent optical OFDM CJ Youn, Y Kwon, DJ Kim, JH Kim, JS Choe, KS Choi, ES Nam
US Patent 9,270,381, 2016
30 2016 Channel estimation and synchronization for polarization-division multiplexed CO-OFDM using subcarrier/polarization interleaved training symbols CJ Youn, X Liu, S Chandrasekhar, YH Kwon, JH Kim, JS Choe, DJ Kim, ...
Optics Express 19 (17), 16174-16181, 2011
29 2011 Enhanced coplanar waveguide and optical communication module using the same HG Yoon, KS Choi, YH Kwon, JS Choe
US Patent 7,331,723, 2008
29 2008 Experimental filtering effect on the daylight operation of a free-space quantum key distribution H Ko, KJ Kim, JS Choe, BS Choi, JH Kim, Y Baek, CJ Youn
Scientific reports 8 (1), 15315, 2018
26 2018 Low bending loss metal waveguide embedded in a free-standing multilayered polymer film JM Lee, S Park, M Kim, SK Park, JT Kim, JS Choe, WJ Lee, MH Lee, JJ Ju
Optics express 17 (1), 228-234, 2009
22 2009 Silica Planar Lightwave Circuit Based Integrated 1 4 Polarization Beam Splitter Module for Free-Space BB84 Quantum Key Distribution JS Choe, H Ko, BS Choi, KJ Kim, CJ Youn
IEEE Photonics Journal 10 (1), 1-8, 2018
21 2018 High-speed and high-performance polarization-based quantum key distribution system without side channel effects caused by multiple lasers H Ko, BS Choi, JS Choe, KJ Kim, JH Kim, CJ Youn
Photonics Research 6 (3), 214-219, 2018
20 2018 Critical side channel effects in random bit generation with multiple semiconductor lasers in a polarization-based quantum key distribution system H Ko, BS Choi, JS Choe, KJ Kim, JH Kim, CJ Youn
Optics express 25 (17), 20045-20055, 2017
20 2017 Silver stripe optical waveguide for chip-to-chip optical interconnections JT Kim, JJ Ju, S Park, SK Park, M Kim, JM Lee, JS Choe, MH Lee, ...
IEEE Photonics Technology Letters 21 (13), 902-904, 2009
17 2009 Polarization division multiplexed optical orthogonal frequency division multiplexing transmitter and receiver CJ Youn, Y Kwon, JH Kim, JS Choe, KS Choi, K Heo, ES Nam
US Patent 8,693,459, 2014
16 2014 40 Gb/s Traveling‐Wave Electroabsorption Modulator‐Integrated DFB Lasers Fabricated Using Selective Area Growth YH Kwon, JS Choe, JS Sim, SB Kim, HG Yun, KS Choi, BS Choi, ES Nam
ETRI journal 31 (6), 765-769, 2009
16 2009 Advanced unambiguous state discrimination attack and countermeasure strategy in a practical B92 QKD system H Ko, BS Choi, JS Choe, CJ Youn
Quantum Information Processing 17, 1-14, 2018
15 2018 An efficient and frequency-offset-tolerant channel estimation and synchronization method for PDM CO-OFDM transmission CJ Youn, X Liu, S Chandrasekhar, YH Kwon, JH Kim, JS Choe, KS Choi, ...
36th European Conference and Exhibition on Optical Communication, 1-3, 2010
14 2010 Fabrication and characteristics of 40-Gb/s traveling-wave electroabsorption modulator-integrated DFB laser modules HG Yun, KS Choi, YH Kwon, JS Choe, JT Moon
IEEE transactions on advanced packaging 31 (2), 351-356, 2008
14 2008 Flexible waveguide structure and optical interconnection assembly MS Kim, J Lee, S Park, JJ Ju, JT Kim, SK Park, JS Choe
US Patent App. 12/545,459, 2010
13 2010 Effect of wet oxidized layer on the interdiffusion of InGaAs/GaAs quantum wells JS Choe, SW Ryu, BD Choe, H Lim
Journal of applied physics 83 (11), 5779-5782, 1998
13 1998 Apparatus for measuring performance of coherent optical receiver CJ Youn, JS Choe, JH Kim, DJ Kim, Y Kwon, ES Nam
US Patent 8,929,731, 2015
11 2015 Optical orthogonal frequency division multiplexing receiver and optical signal receiving method thereof CJ Youn, Y Kwon, ES Nam, JH Kim, JS Choe, KS Choi
US Patent 8,521,040, 2013
11 2013