가입자 트래픽의 지속적인 증가로 인해 수동형 광가입자망(PON: Passive Optical Network) 분야는 끊임없는 신기술 개발이 필요하고, 이를 위해 고속화, 핵심 모듈의 저가화, 국사 광역화 등의 현안 문제를 해결해야 한다. 본고에서는 이런 현안 사항을 해결하고 국내 기업의 경쟁력을 강화하기 위한 미래부 주관 정보통신·방송 기술개발사업인‘대용량 WDM 액세스망 핵심 및 선행 기술 개발’사업에 대해 소개하고자 한다. 또한 최종 목표인 TWDM-PON 광트랜시버, CMOS 포토닉스 기반 광모듈, 10G-EPON Reach Extender, 그리고 OFDM-PON 광모뎀 등의 개발 내용 및 결과물과 향후 시장 동향 및 전망 등을 간략하게 언급하고자 한다.
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