All-optical signal up-conversion for radio-on-fiber applications using cross-gain modulation in semiconductor optical amplifiers YK Seo, CS Choi, WY Choi
IEEE Photonics Technology Letters 14 (10), 1448-1450, 2002
135 2002 SOA-EAM frequency up/down-converters for 60-GHz bi-directional radio-on-fiber systems JH Seo, CS Choi, YS Kang, YD Chung, J Kim, WY Choi
IEEE Transactions on Microwave Theory and Techniques 54 (2), 959-966, 2006
101 2006 Characterization of phototransistor internal gain in metamorphic high-electron-mobility transistors HS Kang, CS Choi, WY Choi, DH Kim, KS Seo
Applied physics letters 84 (19), 3780-3782, 2004
99 2004 Si avalanche photodetectors fabricated in standard complementary metal-oxide-semiconductor process HS Kang, MJ Lee, WY Choi
Applied physics letters 90 (15), 151118, 2007
91 2007 10-Gb/s 850-nm CMOS OEIC receiver with a silicon avalanche photodetector JS Youn, MJ Lee, KY Park, WY Choi
IEEE journal of quantum electronics 48 (2), 229-236, 2011
77 2011 A silicon avalanche photodetector fabricated with standard CMOS technology with over 1 THz gain-bandwidth product MJ Lee, WY Choi
Optics express 18 (23), 24189-24194, 2010
71 2010 IEEE Photonics Technol. Lett CS Choi, HS Kang, WY Choi, HJ Kim, WJ Choi, DH Kim, KC Jang, KS Seo
71 2003 Phototransistors based on InP HEMTs and their applications to millimeter-wave radio-on-fiber systems CS Choi, HS Kang, WY Choi, DH Kim, KS Seo
IEEE transactions on microwave theory and techniques 53 (1), 256-263, 2005
61 2005 Effects of guard-ring structures on the performance of silicon avalanche photodetectors fabricated with standard CMOS technology MJ Lee, H Rucker, WY Choi
IEEE Electron Device Letters 33 (1), 80-82, 2011
59 2011 High optical responsivity of InAlAs-InGaAs metamorphic high-electron mobility transistor on GaAs substrate with composite channels CS Choi, HS Kang, WY Choi, HJ Kim, WJ Choi, DH Kim, KC Jang, KS Seo
IEEE Photonics Technology Letters 15 (6), 846-848, 2003
48 2003 Area-dependent photodetection frequency response characterization of silicon avalanche photodetectors fabricated with standard CMOS technology MJ Lee, WY Choi
IEEE transactions on electron devices 60 (3), 998-1004, 2013
47 2013 Evaluation of coupling coefficients for laterally-coupled distributed feedback lasers WY Choi, JC Chen, CG Fonstad
Japanese journal of applied physics 35 (9R), 4654, 1996
45 1996 High-speed CMOS integrated optical receiver with an avalanche photodetector JS Youn, HS Kang, MJ Lee, KY Park, WY Choi
IEEE Photonics Technology Letters 21 (20), 1553-1555, 2009
44 2009 A 0.4-V, 90 JW Moon, KC Choi, WY Choi
IEEE Transactions on Circuits and Systems II: Express Briefs 61 (5), 319-323, 2014
43 2014 A 30-GHz self-injection-locked oscillator having a long optical delay line for phase-noise reduction KH Lee, JY Kim, WY Choi
IEEE Photonics Technology Letters 19 (24), 1982-1984, 2007
42 2007 Equivalent circuit model for Si avalanche photodetectors fabricated in standard CMOS process MJ Lee, HS Kang, WY Choi
IEEE electron device letters 29 (10), 1115-1117, 2008
41 2008 Injection-locked hybrid optoelectronic oscillators for single-mode oscillation KH Lee, JY Kim, WY Choi
IEEE Photonics Technology Letters 20 (19), 1645-1647, 2008
41 2008 60-GHz bidirectional radio-on-fiber links based on InP-InGaAs HPT optoelectronic mixers CS Choi, JH Seo, WY Choi, H Kamitsuna, M Ida, K Kurishima
ieee photonics technology letters 17 (12), 2721-2723, 2005
40 2005 Evolving affinity between Coulombic reversibility and hysteretic phase transformations in nano-structured silicon-based lithium-ion batteries K Ogata, S Jeon, DS Ko, IS Jung, JH Kim, K Ito, Y Kubo, K Takei, S Saito, ...
Nature communications 9 (1), 1-17, 2018
37 2018 Photonic phase shifters based on a vector-sum technique with polarization-maintaining fibers KH Lee, YM Jhon, WY Choi
Optics letters 30 (7), 702-704, 2005
34 2005 