Spectral filtering effect of diffraction gratings with a lens coupling to optical fibers
We present a theoretical study of a spectral filter, which consists of a diffraction grating, a coupling lens, and an optical fiber. As the diffracted beam is highly dispersed spatially, coupling into an optical fiber naturally creates a Gaussian spectral filtering effect. Using ray transfer matrice...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-12-01
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| Series: | Results in Optics |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666950125001038 |
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| author | Seonjong Ryu Jinpyo Jeong Mintae Kang Taemin Son Andy Chong |
| author_facet | Seonjong Ryu Jinpyo Jeong Mintae Kang Taemin Son Andy Chong |
| author_sort | Seonjong Ryu |
| collection | DOAJ |
| description | We present a theoretical study of a spectral filter, which consists of a diffraction grating, a coupling lens, and an optical fiber. As the diffracted beam is highly dispersed spatially, coupling into an optical fiber naturally creates a Gaussian spectral filtering effect. Using ray transfer matrices, we derive simple equations to calculate the spectral filter bandwidth and the group velocity dispersion. This study offers insights for designing fiber-based spectral filters, particularly for mode-locked fiber lasers. |
| format | Article |
| id | doaj-art-cd5152ffd5df4ab2a39206eb55aaca3e |
| institution | DOAJ |
| issn | 2666-9501 |
| language | English |
| publishDate | 2025-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Optics |
| spelling | doaj-art-cd5152ffd5df4ab2a39206eb55aaca3e2025-08-20T02:57:35ZengElsevierResults in Optics2666-95012025-12-012110087510.1016/j.rio.2025.100875Spectral filtering effect of diffraction gratings with a lens coupling to optical fibersSeonjong Ryu0Jinpyo Jeong1Mintae Kang2Taemin Son3Andy Chong4Department of Physics, Pohang University of Science and Technology(POSTECH), Pohang 37673, Republic of KoreaDepartment of Electrical Engineering, Pusan National University, Geumjeong-Gu, Busan 46241, Republic of KoreaDepartment of Physics, Pusan National University, Geumjeong-Gu, Busan 46241, Republic of KoreaDepartment of Physics, Pusan National University, Geumjeong-Gu, Busan 46241, Republic of KoreaDepartment of Physics, Pusan National University, Geumjeong-Gu, Busan 46241, Republic of Korea; Institute for Future Earth, Pusan National University, Busan 46241, Republic of Korea; Corresponding author at: Department of Physics, Pusan National University, Geumjeong-Gu, Busan 46241, Republic of Korea.We present a theoretical study of a spectral filter, which consists of a diffraction grating, a coupling lens, and an optical fiber. As the diffracted beam is highly dispersed spatially, coupling into an optical fiber naturally creates a Gaussian spectral filtering effect. Using ray transfer matrices, we derive simple equations to calculate the spectral filter bandwidth and the group velocity dispersion. This study offers insights for designing fiber-based spectral filters, particularly for mode-locked fiber lasers.http://www.sciencedirect.com/science/article/pii/S2666950125001038Spectral filterFilter bandwidthGroup velocity dispersionRay transfer matrixMode-locked fiber laser |
| spellingShingle | Seonjong Ryu Jinpyo Jeong Mintae Kang Taemin Son Andy Chong Spectral filtering effect of diffraction gratings with a lens coupling to optical fibers Results in Optics Spectral filter Filter bandwidth Group velocity dispersion Ray transfer matrix Mode-locked fiber laser |
| title | Spectral filtering effect of diffraction gratings with a lens coupling to optical fibers |
| title_full | Spectral filtering effect of diffraction gratings with a lens coupling to optical fibers |
| title_fullStr | Spectral filtering effect of diffraction gratings with a lens coupling to optical fibers |
| title_full_unstemmed | Spectral filtering effect of diffraction gratings with a lens coupling to optical fibers |
| title_short | Spectral filtering effect of diffraction gratings with a lens coupling to optical fibers |
| title_sort | spectral filtering effect of diffraction gratings with a lens coupling to optical fibers |
| topic | Spectral filter Filter bandwidth Group velocity dispersion Ray transfer matrix Mode-locked fiber laser |
| url | http://www.sciencedirect.com/science/article/pii/S2666950125001038 |
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