Heasin Ko

Security analysis of quantum key distribution on passive optical networks.

Changho Suh, June-Koo Kevin Rhee, Kyongchun Lim, 2017, Optics express.

Daylight Operation of a High-Speed Free-Space Quantum Key Distribution using Silica-Based Integration Chip and Micro-Optics-Based Module

Joong-Seon Choe, Jong-Hoi Kim, Heasin Ko, 2019, 2019 Optical Fiber Communications Conference and Exhibition (OFC).

Experimental filtering effect on the daylight operation of a free-space quantum key distribution

Yongsoon Baek, Joong-Seon Choe, Jong-Hoi Kim, 2018, Scientific Reports.

Informatic analysis for hidden pulse attack exploiting spectral characteristics of optics in plug-and-play quantum key distribution system

June-Koo Kevin Rhee, Kyongchun Lim, Heasin Ko, 2016, Quantum Inf. Process..

Advanced unambiguous state discrimination attack and countermeasure strategy in a practical B92 QKD system

Joong-Seon Choe, Heasin Ko, Byung-Seok Choi, 2018, Quantum Inf. Process..

Silica Planar Lightwave Circuit Based Integrated 1 $\times$ 4 Polarization Beam Splitter Module for Free-Space BB84 Quantum Key Distribution

Joong-Seon Choe, Heasin Ko, Byung-Seok Choi, 2018, IEEE Photonics Journal.

The Error Tolerance Bound for Secure Multi-Qubit QKD Against Incoherent Attack

Changho Suh, June-Koo Kevin Rhee, Kyongchun Lim, 2015, IEEE Journal of Selected Topics in Quantum Electronics.

Critical side channel effects in random bit generation with multiple semiconductor lasers in a polarization-based quantum key distribution system.

Joong-Seon Choe, Jong-Hoi Kim, Heasin Ko, 2017, Optics express.

High-speed and high-performance polarization-based quantum key distribution system without side channel effects caused by multiple lasers

Joong-Seon Choe, Jong-Hoi Kim, Heasin Ko, 2017, 1711.08255.