https://scholar.dgist.ac.kr/handle/20.500.11750/11776 2026-08-03T11:40:48Z https://scholar.dgist.ac.kr/handle/20.500.11750/60564 Title: 민감도 및 동적 영역이 조절 가능한 광기계 초음파 센서 및 그 제어 방법 Author(s): 남상우; 유재석; 한상윤; 최동주 Abstract: 본 개시는 초음파 센서 및 그 동작 방법에 관한 것으로서, 더욱 상세하게는 캔틸레버 구조의 멤브레인의 초기 위치를 조절하여 민감도 및 동적 영역이 조절 가능한 광기계 초음파 센서 및 그 제어 방법에 관한 것이다. https://scholar.dgist.ac.kr/handle/20.500.11750/60560 Title: 멀티캐스트 스위치 어레이 및 이를 이용한 빔 조향 장치 Author(s): 유경식; 한상윤 Abstract: A multicast switch array and a multi-beam steering device using the same are provided. Accordingly, it is possible to precisely steer a large-scale multi-beam. https://scholar.dgist.ac.kr/handle/20.500.11750/59188 Title: REFLECTED OPTICAL WAVELENGTH SCANNING DEVICE PROVIDED WITH SILICON PHOTONIC INTERROGATOR Author(s): 문형명; 한상윤 Abstract: The present invention provides a reflected optical wavelength scanning device provided with a silicon photonic interrogator. The device may comprise: a light source module which outputs broadband light; an optical sensor which receives, through a circulator, the light outputted from the light source module, reflects light of a specific band to the circulator, and transmits light of the other bands other than the specific band; and an interrogator which separates polarized light from the reflected light received through the circulator, and enables the selective incidence of the polarized light. https://scholar.dgist.ac.kr/handle/20.500.11750/59150 Title: Dimensional Tolerance Analysis for 50 GHz 12-Channel Silicon Arrayed Waveguide Grating Author(s): Vatandoust, Leila; Kim, Jae Hyeon; Gupta, Shashank; Tusher, Md Munirul Islam; Moon, Hyung-Myung; Merklein, Moritz; Han, Sangyoon; Quack, Niels Abstract: We present a dimensional tolerance analysis of a 12-channel Arrayed Waveguide Grating (AWG) with 50 GHz channel spacing, designed and fabricated on a silicon-oninsulator (SOI) platform. The AWG was simulated using RSoft BeamPROP. Experimental measurements revealed notable spectral deviations. To identify the origins, we evaluated the effects of fabrication-induced variations including waveguide width and height deviations and refractive index fluctuations. Dimensional tolerance simulations confirmed that these imperfections degrade Silicon AWG's performance, underscoring the importance of tolerance-aware design in silicon photonic integrated circuits (PICs). 2025-07-12T15:00:00Z