[Graduate]

Donghwa LEE, MS (Sep. 2017 – Aug. 2019)

• MS Thesis: Half-meter Optical Microfiber Devices and Their Transmission Optimization
• Doctoral Thesis: Photonic Qubits in Pauli Channel for Quantum Information Processing (KIST School, UST)
  
• Quantum Optics Workshop 2016 (POSTECH) (supported by NRF)
• Research Topics:
  Tapered micro-fiber devices for photon-pair generation
  Telecom band polarization-entangled photon-pair generation (KIST)
• Currently with Danmarks Tekniske Universitet (DTU) (DTU Physics, Postdoc)

Yung KIM, MS (Mar. 2017 – Feb. 2019)

• MS Thesis: Near to Mid-Infrared Optical Modulators
• Internship at KAERI (한국원자력연구원 인턴)
  
• Currently with KAIST (한국과학기술원 기계공학과 박사과정)

Hyo Eun KIM, MS Student (Sep. 2018 – Oct. 2018)

• Research Subject: Fiber-optic gratings
• Dropout (1.5-month work)
• Currently ???
  

[Undergraduate]

Woohyun CHO (Jun. 2021 – Dec. 2021)

• Research Subject:
  Experimental quantum optics (Jun. 2021 – Aug. 2021) (LINC+ Internship)
  Mid-IR fiber optics and Quantum optics (Sep. 2021 – Dec. 2021)
  2021 양자정보경진대회 우수상 수상
  졸업식 총장상 수상 (단과대 수석졸업)
• Currently with KAIST (한국과학기술원 물리학과 석박통합과정)
  
• Research Paper:
  Woohyun Cho, Ilhwan Kim, and Kwang Jo Lee, “LP₀₁ mode analysis of hollow-core photonic bandgap fibers operating in a 2 μm window,” Kyung Hee Journal of Natural Sciences, vol. 27, no.1, pp. 10-13, 2021 (in Korean).

Gunho LEE (Jun. 2021 – Dec. 2021)

• Research Subject:
  Experimental quantum optics (Jun. 2021 – Aug. 2021) (LINC+ Internship)
  Mid-IR fiber optics and Quantum optics (Sep. 2021 – Dec. 2021)
  2021 양자정보경진대회 우수상 수상
• Currently with KHU (경희대학교 수학과 석사과정), 양자정보 이론연구
  

Nuri KANG (Mar. 2021 – Dec. 2021)

• Research Subject:
  Nonlinear optics generation of entangled photon pairs
  Experimental quantum optics (Dec. 2020 – Feb. 2021) (LINC+ Internship)
  2021 양자정보경진대회 우수상 수상
• Currently with KIST and Korea Univ. (양자정보 이론연구)

Gwangjin AHN (Nov. 2019 – Dec. 2020)

• Research Subject:
  Design of ring-core fibers for mode-coupling devices (KHU)
  Experimental quantum optics (Jan. 2020 – Feb. 2020) (KIST)
• Currently with Samsung Semiconductor (삼성반도체 연구소)
• Research Paper:
  Gwang-Jin Ahn, Donghwa Lee and Kwang Jo Lee, “Design of a ring core fiber for application to mode coupling devices,” Kyung Hee Journal of Natural Sciences, vol. 25, no.1, pp. 20-25, 2019 (in Korean).

Gahyun An (Aug. 2018 – Sep. 2019)

• Study Subject:
  Quantum state tomography
• Currently ???

Youngeun HAM (Sep. 2018 – Jun. 2019)

• Research Subject:
  3D printed prism coupling setup for the measurement of optical fiber modes
• Research Paper:
  Youngeun Ham, Eunjoo Lee, Donghwa Lee, Yung Kim, and Kwang Jo Lee, “Development of the apparatus for measuring modal indices of an optical fiber based 3D printing technique,” Kyung Hee Journal of Natural Sciences, vol. 24, no.1, pp. 40-45, 2018 (in Korean).
• Teaching in high school
  
• Currently with GIST (광주과학기술원 물리광과학과 석박통합과정)

Eunjoo LEE (Sep. 2018 – Jun. 2019)

• Research Subject:
  3D printed prism coupling setup for the measurement of optical fiber modes
• Research Paper:
  Youngeun Ham, Eunjoo Lee, Donghwa Lee, Yung Kim, and Kwang Jo Lee, “Development of the apparatus for measuring modal indices of an optical fiber based 3D printing technique,” Kyung Hee Journal of Natural Sciences, vol. 24, no.1, pp. 40-45, 2018 (in Korean).
• Currently with KHU (MS students in Prof. Sun Kim’s lab)

Eun Hye KIM (Mar. 2016 – Jun. 2016, Sep. 2017 – Dec. 2017)

• Research Subject:
  Survey of quantum information science in Korea
• Currently a Civil Servant (7급 공무원 전기직)
  

Chaelin KIM (Mar. 2017 – Dec. 2017)

• Research Subject:
  Measurement of effective indices of optical fiber modes using prism coupling technique
• MS Thesis:The effect of water vapor on the fluorescence of fingerprints developed with 1,2-Indanedione/zinc (Graduate school of Forensic Science, Soon Chun Hyang University (순천향대학교 법과학대학원, 법과학과 법과학전공 석사졸업)
• Chaelin Kim, Donghwa Lee, Yung Kim, and Kwang Jo Lee, “Measurement of indices of optical fiber modes based on evanescent coupling method,” Kyung Hee Journal of Natural Sciences, vol. 23, no.1, pp. 11-15, 2017 (in Korean).
• Currently with 부산경찰청 과학수사과 순경
  

Hoon Gi LEE (Mar. 2017 – Dec. 2017)

• Research Subject:
  Experimental demonstration of distributed feedback (DFB) lasers
• Currently with Samsung Display (삼성 디스플레이)
  

Jong Ah PARK (Mar. 2017 – Aug. 2017)

• Research Subject:
  Optical system design with OSLO
• Quantum Optics Workshop 2016 (POSTECH) (supported by NRF)
• Currently ???

Sangwoo Kim (Nov. 2016 – Feb. 2017)

• Research Subject: Optical orbital angular momentum
• Currently with LG Innotek
  

Bin Yun (Sep. 2016 – Nov. 2016)

• Research Subject:
  Survey of quantum information science in Korea
• Currently a English teacher (영어교사)

Yoon Jung Shin (Aug. 2016)

• Quantum Optics Workshop 2016 (POSTECH) (supported by NRF)
• Currently with POSTECH (PhD course)
  

Daechan Yoon (Mar. 2016 – Jul. 2016)

• Research Subject:
  Electro-optic modulation in periodically poled ferroelectric crystals
• Conference presentation:
  Y. Kim, D. Yoon, H. Choi, and K. J. Lee, “Electro-optic amplitude modulation using a ferroelectric potassium niobate single crystal,” Optical Society of Korea Summer Meeting 2016, BEXCO, Busan, Korea, Jul. 11-13, 2016.
• Currently with KHU (Undergraduate)
  

Yung Kim (Sep. 2015 – Jul. 2016)

• Research Subject:
  Electro-optic modulation based on Pockels effects in potassium niobate crystals
• Conference presentation:
  Y. Kim, D. Yoon, H. Choi, and K. J. Lee, “Electro-optic amplitude modulation using a ferroelectric potassium niobate single crystal,” Optical Society of Korea Summer Meeting 2016, BEXCO, Busan, Korea, Jul. 11-13, 2016.
• Internship at KAERI (한국원자력연구원 인턴)
  
• Currently with KAIST (한국과학기술원 기계공학과 박사과정)
  

Sungyoon Hwang (Sep. 2015 – Jun. 2016)

• Research Subject:
  Design of single-mode hollow waveguide for mid-infrared operation
• Research Paper:
  Sungyoon Hwang and Kwang Jo Lee, “Design of micro-structured optical fibers based on multi-pole expansion method,” Kyung Hee Journal of Natural Sciences, vol. 22, no.1, pp. 1-4, 2016 (in Korean).
• Conference presentation:
  S. Hwang and K. J. Lee, “Design of micro-structured optical fibers based on multi-pole expansion method,” The 23th Conference on Optoelectronics and Optical Communications (COOC), Hanwha Resort, Busan, Jun. 1-3, 2016.
• Currently with Samsung Display (삼성 디스플레이)
  

Haeun Choi (Sep. 2015 – Jun. 2016)

• Research Subject:
  Generation of frequency-coincident, polarization-entangled photon-pair for quantum information processing in telecommunication bands
• Conference presentation:
  1. H. Choi and K. J. Lee, “Phase-matching properties of spontaneous parametric down-conversion in ferroelectric crystals for the generation of polarization-entangled photon pairs in infrared spectral range,” The 23th Conference on Optoelectronics and Optical Communications (COOC), Hanwha Resort, Busan, Jun. 1-3, 2016.
  2. Y. Kim, D. Yoon, H. Choi, and K. J. Lee, “Electro-optic amplitude modulation using a ferroelectric potassium niobate single crystal,” Optical Society of Korea Summer Meeting 2016, BEXCO, Busan, Korea, Jul. 11-13, 2016.
• Currently a science/mathematics teacher (수학/물리교사)
  

Taehyung Kim (Jul. 2015 – Aug. 2015)

• Research Subject:
  Spontaneous parametric down-conversion (SPDC) process satisfying the extended phase matching condition for quantum optical applications
• Journal paper:
  T. Kim and K. J. Lee, “Extended phase matching characteristics in periodically poled potassium titanyl phosphate isomorphs,” J. Kor. Phys. Soc. 67, 837-842 (2015).
• Currently ???
  

Jeongje Kim (Apr. 2014 – Dec. 2015)

• Research Subject:
  1. Multi-core single mode polymer fiber operating in the visible spectral range
  2. Nonlinear polarization evolution (NPE) mode-locked ps-fiber laser (Research topic in KIST, Korea)
• Research Paper:
  J. Kim and K. J. Lee, “Multi-core single mode polymer fiber operating in the visible spectral range,” Kyung Hee Journal of Natural Sciences, vol. 20, no.1, pp. 5-8, 2014 (in Korean).
• MS in KIST-UST
  
• Currently with APRI-GIST

Ilhwan Kim (Apr. 2014 – Aug. 2015, Sep. 2018 – Dec. 2018)

• Research Subject:
  1. All-fiber torsional acousto-optic filters
  2. Electro-optic modulator based on periodically poled nonlinear optic crystals
• Journal paper:
  I. Kim, K. J. Lee, and I.-K. Hwang, “Analysis of line broadening and spectral asymmetry in all-fiber torsional acousto-optic band-pass filter,” J. Kor. Phys. Soc. 65, 1820-1824 (2014).
  I. Kim, and K. J. Lee, “Axial strain dependence of torsional acousto-optic gratings induced in a form-birefringence optical fiber,” J. Kor. Phys. Soc. 67, 465-471 (2015).
• Conference presentation:
  I. Kim and K. J. Lee, “Analysis of spectral properties of all-fiber torsional acousto-optic band-pass filter,” The 22th Conference on Optoelectronics and Optical Communications (COOC), Hanwha Resort, Busan, Jun. 3-5, 2015.
• Currently with KHU (Combined master’s and doctorate course)
  

Beomseok Lee (Mar. 2015 – Jun. 2015)

• Research Subject:
  “Editing” future events by temporal cloak
• Conference presentation:
  B. Lee and K. J. Lee, “Temporal cloak based on cascaded second-order nonlinearity,” The 22th Conference on Optoelectronics and Optical Communications (COOC), Hanwha Resort, Busan, Jun. 3-5, 2015.
• SBS 방송국
  
• Currently with LG Display (엘지 디스플레이)
  

Mi Sun Um (Sep. 2014 – Jun. 2015)

• Research Subject:
  Analysis of structural color reflection depending on thickness of oxidization layers on a steel sheet
• Conference presentation:
  M. S. Um and K. J. Lee, “Apodization of dual-resonance all-fiber acousto-optic tunable filters,” The 22th Conference on Optoelectronics and Optical Communications (COOC), Hanwha Resort, Busan, Jun. 3-5, 2015.
• Review of a recently-published science book (in Korean) (Optical Society of Korea)
  M. S. Um and K. J. Lee, “Revolutions in Twentieth-Century Physics,” 19(2), 52-53, Optical Science and Technology, April 2015.
• Internship at Chosun Media (조선일보 인턴기자, 엄미선 인턴기자의 기사 읽기)
  • 2015. 2. 9 (월)
    취업 때문에… 이공계로 轉科(전과)하는 文·史·哲
    
  • 2015. 1. 26 (월)
    SNS 택시 괴담…’아빠사자’ 번호판 기억하라고?
    
  • 2015. 1. 24 (토)
    [Why] [혹시 아시나요?] 車 번호판 한글·숫자에 새겨진 비밀… 불법 택시 피하려면 ‘아빠사자’ 기억하라
    
  • 2015. 1. 17 (토)
    [Why] 거리에서 사라진 군고구마… 그 겨울날의 추억만 남아
    
  • 2015. 2. 16 (월)
    선생님은 大入보다 알바 계약서를 더 반겼다
    
  • 2015. 1. 31 (토)
    [Why] [혹시 아시나요?] 추억 담은 대학 졸업앨범, 추억 속으로
• Currently with Renault Samsung Motors (르노 삼성자동차)
  

Songhwa Chae (Sep. 2014 – Jun. 2015)

• Research Subject:
  Refractive index sensing based on torsional acousto-optic coupling in a porous multi-core fiber
• Conference presentation:
  S. Chae, M. Kwon, and K. J. Lee, “Refractive index sensing based on torsional acousto-optic coupling in a porous elliptical multi-core fiber,” The 22th Conference on Optoelectronics and Optical Communications (COOC), Hanwha Resort, Busan, Jun. 3-5, 2015.
• MS, Dept. of Mechanical Engineering, KHU
  
• Currently with Renault Samsung Motors (르노 삼성자동차)

Gil Ho Baek (Sep. 2014 – Nov. 2014)

• Research Subject:
  Mid-infrared astrophotonics for stellar spectroscopic signal processing
• School of Space Research, KHU (MS/PhD Course) (우주탐사학과 대학원)
  
• Korea Meteorological Administration (KMA) (기상청)

Minjin Kwon (Sep. 2014 – Nov. 2014)

• Research Subject:
  Design of highly birefringent elliptical multi-core fiber for high-power laser
• Conference presentation:
  S. Chae, M. Kwon, and K. J. Lee, “Refractive index sensing based on torsional acousto-optic coupling in a porous elliptical multi-core fiber,” The 22th Conference on Optoelectronics and Optical Communications (COOC), Hanwha Resort, Busan, Jun. 3-5, 2015.
• Samsung Electronics (삼성전자)
  
• Currently with BK Medical (Assistant Manager) (비케이 케미컬)