Device Miniaturization using Butterfly Grating-Assisted MMI Couplers

나비형 격자구조 다중모드 간섭 결합기를 사용한 소자의 소형화

  • 호광춘 (한성대학교 정보통신공학과)
  • Published : 2008.02.29


In this paper, a novel architecture for device miniaturization of multimode interference-based (MMI) couplers is proposed. The coupling length of $N{\times}N$ MMI couplers scales as the square of the MMI region width so that the use of these structures with large-N ports can require large chip size. To solve the design problem, the butterfly grating-assisted MMI couplers, that have smaller device dimensions than conventional MMI couplers, are discussed and evaluated. Numerical simulations and novel design rules for such structures derived through theoretical analysis are presented.


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