activity
20242026
collaborators

5 papers

physics.optics2026

Inverse-Designed Lithium Niobate Wavelength Demultiplexer via Birefringent Effective Index Approximation

Chihyeon Kim, Minho Choi, Munseong Bae +2

Inverse design of thin-film lithium niobate (TFLN) photonic devices is computationally demanding because optical birefringence and fabrication-induced slanted sidewalls generally r…

physics.optics2026

Universal zero-crosstalk photonic integration via slab-engineered mode hybridization

Kyungtae Kim, Yoseph Shin, Seungyong Lee +8

Photonic integrated circuits have emerged as a scalable platform for optical computing, communication, and quantum technologies, where high-fidelity optical processing is essential…

physics.optics2026

Scalable Liquid-Crystal Integrated Silicon Nitride Photonic Circuits for Reconfigurable Quantum Interference

Chunghyun Ahn, Yongjin Hwang, Sangbaek Lee +7

Integrated quantum photonics requires compact, efficient, and low-power phase modulators. While silicon nitride (SiN) is a promising platform, existing modulators suffer from high…

physics.optics2025

Integrated bright source of polarization-entangled photons using lithium niobate photonic chips

Changhyun Kim, Hansol Kim, Minho Choi +10

Quantum photonics has rapidly advanced as a key area for developing quantum technologies by harnessing photons' inherent quantum characteristics, particularly entanglement. Generat…

physics.optics2024

Fabrication of a 3D mode size converter for efficient edge coupling in photonic integrated circuits

Hyeong-Soon Jang, Hyungjun Heo, Sangin Kim +6

We demonstrate efficient edge couplers by fabricating a 3D mode size converter on a lithium niobate-on-insulator photonic platform. The 3D mode size converter is fabricated using a…