5 papers
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…
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…
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…
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…
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…