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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/31875完整後設資料紀錄
| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 王倫 | |
| dc.contributor.author | Ping-Chung Lin | en |
| dc.contributor.author | 林品仲 | zh_TW |
| dc.date.accessioned | 2021-06-13T03:22:59Z | - |
| dc.date.available | 2007-08-01 | |
| dc.date.copyright | 2006-08-01 | |
| dc.date.issued | 2006 | |
| dc.date.submitted | 2006-07-29 | |
| dc.identifier.citation | 1. Hill, K.O., et al., Photosensitivity in Optical Fiber Waveguides -Application to Reflection Filter Fabrication. Applied Physics Letters, 1978. 32(10): p. 647-649.
2. Meltz, G., W.W. Morey, and W.H. Glenn, Formation of Bragg Gratings in Optical Fibers by a Transverse Holographic Method. Optics Letters, 1989. 14(15): p. 823-825. 3. Vengsarkar, A.M., et al., Long-period fiber gratings as band-rejection filters. Journal of Lightwave Technology, 1996. 14(1): p. 58-65. 4. Starodubov, D.S., V. Grubsky, and J. Feinberg, All-fiber bandpass filter with adjustable transmission using cladding-mode coupling. Ieee Photonics Technology Letters, 1998. 10(11): p. 1590-1592. 5. Lemaire, P.J., et al., High-Pressure H-2 Loading as a Technique for Achieving Ultrahigh Uv Photosensitivity and Thermal Sensitivity in Geo2 Doped Optical Fibers. Electronics Letters, 1993. 29(13): p.1191-1193. 6. Davis, D.D., et al., Long-period fibre grating fabrication with focused CO2 laser pulses. Electronics Letters, 1998. 34(3): p. 302-303. 7. Fujimaki, M., et al., Ion-implantation-induced densification in silica-based glass for fabrication of optical fiber gratings. Journal of Applied Physics, 2000. 88(10): p. 5534-5537. 8. Kersey, A.D., et al., Fiber grating sensors. Journal of Lightwave Technology, 1997. 15(8): p. 1442-1463. 9. Wang, L.A., C.Y. Lin, and G.W. Chern, A torsion sensor made of a corrugated long period fibre grating. Measurement Science & Technology, 2001. 12(7): p. 793-799. 10. Erdogan, T., Cladding-mode resonances in short- and long-period fiber grating filters. Journal of the Optical Society of America a-Optics Image Science and Vision, 1997. 14(8): p. 1760-1773. 11. 林俊彥, 鋸齒狀長週期光纖光柵在軸向應變，扭轉及彎曲下之光學特性研究. 博士論文 國立台灣大學光電工程學研究所，2001. 12. Chern, G.W., L.A. Wang, and C.Y. Lin, Transfer-matrix approach based on modal analysis for modeling corrugated long-period fiber gratings. Applied Optics, 2001. 40(25): p. 4476-4486. 13. Chern, G.W. and L.A. Wang, Transfer-matrix method based on perturbation expansion for periodic and quasi-periodic binary long-period gratings. Journal of the Optical Society of America 104 a-Optics Image Science and Vision, 1999. 16(11): p. 2675-2689. 14. http://www.geocities.com/guerinlj/. 15. MicroChem, NANO TM SU8-2000 Negtive tone photoresist formulations 2002-2025. 16. Savin, S., et al., Tunable mechanically induced long-period fiber gratings. Optics Letters, 2000. 25(10): p. 710-712. 17. MacDougall, T.W., et al., Generalized expression for the growth of long period gratings. Ieee Photonics Technology Letters, 1998.10(10): p. 1449-1451. | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/31875 | - |
| dc.description.abstract | 先前我們研究小組提出的鋸齒狀光纖光柵 (corrugated fiber grating)克服了傳統需要先有感光光纖以曝光來製作長週期光纖光柵 (LPFG)的限制。此外，鋸齒狀光纖光柵更表現出對於光共振性質和耦合強度具可調性的特點。雖然鋸齒狀光纖光柵具有優於以傳統紫外曝光產生光纖光柵的一些優點，但在製程上需利用熱蒸鍍金屬膜的方式製作仍然有許多的不便，除了需要鍍多種金屬層來增加緊密度以抵抗氫氟酸的蝕刻之外，一次也只能在一根光纖上鍍膜。因此一種利用微影製程，在光纖上製作鋸齒狀結構的方法，在本論文中我們提出。數根光纖可同時利用微影製程製作的鋸齒狀光纖光柵，不但所需的時間較短，製作的良率也比較高。 此外在此微影製程中所使用的光阻為一種負光阻SU8，此種光阻於固化後可以達到較高的深寬比和化學惰性，因此在本論文中利用以製做週期性結構以及抵抗氫氟酸的蝕刻。
除了證實先前的可調式光學特性之外，以此法製成鋸齒狀光纖光柵還將被放置在於折射率大於空氣的環境下檢驗其光學性質。由於實驗中的共振模態為纖核模態(core mode)和低階纖殼模態(cladding mode)，因此環境折射率對於共振條件的影響並不大，這有助於選擇 適當的材料以封裝鋸齒狀光纖光柵。 此種微影製程的方法可以幫助鋸齒狀光纖光柵的普及和應用，而且以其獨特的光學特性，相信在光纖通信和光纖感測的領域應該都非常的有潛力。 | zh_TW |
| dc.description.abstract | The proposed corrugated fiber gratings by our group do not need fiber photosensitivity to make long period fiber gratings. Besides, the corrugated structure offers flexibility on adjusting coupling strength and resonant conditions. However, making the corrugated structure on a fiber by thermal coating method is not convenient and time consuming. Multiple metal layers need be coated on a fiber for protecting the etching of hydrofluoric acid. Hence, a new method based on photo-lithography is proposed for fabricating corrugated structures on a fiber. The proposed
method can increase the production yield and save time. Since SU8 epoxy resin is a negative photoresist used in the process, it can generate a large aspect ratio and is inert to chemical properties. Hence, SU8 can be used to cover and protect a fiber during the etching process. In addition to confirming its being intact of wavelength and loss tunability when mechanical forces such as stress and torsion are applied, the corrugated fiber gratings thus fabricated are also tested in a different environment. Because only first few cladding modes and the core mode are involved for the optical characteristics of the corrugated fiber grating, the refractive index of the surrounding material is found to affect little on its resonant conditions. This may help the selection of an appropriate material to package such fiber gratings. The proposed photo-lithographical method may improve the generalization of the corrugated fiber gratings, which may find useful applications in optical fiber communication and fiber sensing. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-13T03:22:59Z (GMT). No. of bitstreams: 1 ntu-95-R93941006-1.pdf: 1542003 bytes, checksum: 9b28562ede699d4a7c55ee26ed7ce2c9 (MD5) Previous issue date: 2006 | en |
| dc.description.tableofcontents | Abstract(Chinese)..........................................I
Abstract(English)........................................III Contents...................................................V List of Acronyms.........................................VII Chapter 1. Introduction....................................1 1-1 Characteristic of conventional LPFGs...................4 1-2 Prior fabrication method of corrugated fiber grating..10 1-3 Organization of the thesis............................14 Chapter 2 Theoretical Modeling............................15 2-1 Coupled mode theory for corrugated fiber grating under varying tensile strain....................................19 2-2 Transfer matrix approach for modeling corrugated fiber grating under varying tensile strain......................30 2-3 Operation principle of the corrugated fiber grating under varying torsion.....................................40 2-4 Summary...............................................43 Chapter 3. Experiment Setups..............................45 3-1 Introduction of SU8 photoresist.......................47 3-2 Processing procedure of photo-lithographical method...49 3-3 Summary...............................................72 Chapter 4. Optical Characteristics of a Corrugated Fiber Grating...................................................73 4-1 Optical characteristics under tensile strain..........75 4-2 Optical characteristics under varying torsion.........80 4-3 Optical characteristics under different surroundings..84 4-4 Summary...............................................99 Chapter5. Conclusion.....................................101 References...............................................103 | |
| dc.language.iso | en | |
| dc.title | 鋸齒狀長週期光纖光柵之新製法及其對光學特性的影響 | zh_TW |
| dc.title | A New Method of Fabricating a Corrugated Long Period Fiber Grating and Its Induced Effects on Optical Properties | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 94-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 曹恆偉,蔡睿哲 | |
| dc.subject.keyword | 長週期光纖光柵,鋸齒狀,光纖光柵,SU8, | zh_TW |
| dc.subject.keyword | Long period fiber grating,corrugated fiber grating,SU8, | en |
| dc.relation.page | 104 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2006-07-30 | |
| dc.contributor.author-college | 電機資訊學院 | zh_TW |
| dc.contributor.author-dept | 光電工程學研究所 | zh_TW |
| 顯示於系所單位： | 光電工程學研究所 | |
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