인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
In this study, we scrutinize the continuous wavelength tuning capability of the narrowband multiwavelength spectrum in an optical fiber multiwavelength filter using contiguous quarter-wave polarization transformation. The multiwavelength filter is based on a polarization-diversity loop structure composed of a polarization beam splitter, two equal-length polarization-maintaining fiber segments, four quarter-wave plates (QWPs) used to tune the spectrum wavelength, and a half-wave plate utilized to maximize the spectrum visibility. By utilizing the transmittance function of the filter derived through the Jones matrix formulation, we theoretically found specific orientation angles of the four QWPs for the continuous wavelength tuning of the narrowband multiwavelength spectrum, which could induce an extra phase difference φ from 0° to 360° in the filter transmittance. From the spectral calculation at the eight selected orientation angle sets of the four QWPs, it was revealed that the wavelength tuning of the narrowband multiwavelength spectrum could be implemented at 0.1nm intervals by properly adjusting the orientation angles of the four QWPs and this approach could be easily extended for the continuous wavelength tuning of the spectrum. The theoretical prediction was then experimentally verified.
본문·목차
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
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