□ 과제수행 목표 및 내용 ■ 최종 목표 ○ 광기반 연속변수 양자컴퓨팅 기반 기술 개발 - 비가우시안 상태 생성 (CAT 상태, 평균 광자 수 1.5 이상) ○ 양자광집적회로 기반 양자얽힘상태 생성 연구 - 압착광원 소자 개발 (최종 압착수준 목표: –4 dB) - 2-mode 압착광원 소자 개발 - 4-mode 클러스터 상태 생성 소자 개발 - 비가우시안 상태 생성 소자 (CAT 상태, 평균 광자 수 0.5 이상) - 도파손실 0.5 dB/cm 이하, 모드변환 결합 효율 90% 이상 - SHG 변환효율 3000 %/Wcm2 이상
■ 1단계 ○ 목표 (1) 양자광집적회로 기술 개발: - 도파손실 1.5 dB/cm 이하 - 도파로-자유공간 모드변환 효율 50% 이상 (2) 압착광원 생성 기술 개발 - 벌크광학계 기반 압착광원 생성 (-5 dB 수준) ○ 내용 (1) 벌크 광학계 기반 압착상태 생성 (-5 dB), 호모다인 측정 및 양자 토모그래피 - 상용 OPA 및 SHG 모듈을 이용한 압착상태 생성 - 저손실 압착광 측정 광학계 구축 및 고효율 호모다인 검출기 자체 제작 - 양자 토모그래피 기술 개발 (2) 양자광집적회로 기술 개발: 도파손실 1.5 dB/cm 이하 - 대면적 균일 PPLN 도파로 제작 기술 및 도파손실/비선형 효율 평가 - Adaptive periodic poling 기술 개발 (3) 광집적회로 칩 – 자유공간 커플링 효율 50% 이상 달성 - Mode-size converter 이용한 칩-자유공간 커플링 구조 제작
(출처 : 요약문 2p)
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