臺灣博碩士論文加值系統

數種光學循環器/準循環器的設計被提出。首先，由兩個串聯的空間偏離偏極模組和數個偏極光導引模組所組成的晶體式多埠光學循環器被提出。此空間偏極模組是由兩個雙折射晶體空間偏極分光器、一個法拉第旋轉器和一個二分之一波片所組成。偏極光導引模組則是由數個偏極分光鏡和反射稜鏡所組成，用以解決偏極模色散的問題。接著，兩種多埠光學循環器被提出，其中使用偏極分光鏡取代雙折射晶體空間偏極分光器。由於結構的對稱，所以沒有偏極膜色散的問題，為了驗證這些設計的可行性，數個六埠光學循環器/準循環器之原型被組裝並以632.8 nm 氦氖雷射光源測試。它們的效能被討論。這些設計的優點包含偏極獨立、密集、偏極模色散消除的，以及埠的數目可容易地擴充。

Several designs of optical circulators/quasi-circulators have been proposed. Firstly, a crystal type multi-port optical quasi-circulator has been proposed that is composed of two spatial- and polarizationmodules in series and several polarization light guiding modules. The spatial- and polarization- module is consisted of two birefringence crystal spatial walk-off polarizers, a Faraday rotator, and a half-wave plate. The polarization light guiding module consisting of some polarization beam splitting cubes and reflection prisms is introduced for
solving the problem of polarization mode dispersion. Then two multi-port optical circulators have been proposed in which the birefringence crystal spatial walk-off polarizers are replaced by polarization beam splitting cubes. Due to the symmetry of this structure, it is no problem of polarization mode dispersion. In order to show the validity of these designs, several prototypes of 6-port optical circulators/quasi-circulators were assembled and were tested by a 632.8 nm laser light source. Their performances were discussed. The advantages of these designs include polarization independent, compact, polarization mode dispersion solved, and the number of port could be expanded easily.

摘 要 i
Abstract ii
誌 謝 iii
目 錄 v
圖 目 錄 viii
表 目 錄 xi
縮寫與符號對照表 xii
第一章 緒論 1
1.1 前言 1
1.2 章節簡介 3
第二章 光學循環器簡介 5
2.1 前言 5
2.2 光學循環器之組成元件 5
2.2.1 空間偏極分光元件 6
2.2.2 法拉第旋轉器 11
2.2.3 波片 14
2.3 光學循環器之分類 17
2.3.1 晶體式光學循環器 17
2.3.2 PBS式光學循環器 19
2.3.3 波導式光學循環器 21
2.3.4 全像式光學循環器 23
2.4 光學循環器之應用 25
2.5 小結 32
第三章 新型晶體式多埠光學準循環器 33
3.1 前言 33
3.2 晶體式空間偏離偏極模組 33
3.3 晶體式多埠光學準循環器設計架構與原理 36
3.4 實驗結果與討論 38
3.5 小結 43
第四章 新型PBS式多埠光學循環器 45
4.1 前言 45
4.2 串聯式多埠光學循環器設計架構與原理 46
4.3 堆疊式多埠光學循環器設計架構與原理 50
4.4 實驗結果與討論 54
4.5 小結 58
第五章 結論與未來展望 59
參考文獻 62
作者簡介 66

[1] Y. K. Chen et al., “Low-crosstalk and compact optical add-drop multiplexer using a multiport circulator and fiber Bragg gratings,” IEEE Photonics Technology Letters. 12, 1394-1396 (2000).
[2] An Vu Tran et al., “Compact optical add-drop multiplexers with low homodyne crosstalk using a single optical circulator and fiber Bragg gratings,” Optical Fiber Communication Conference, Vol. 2, 7-10 , 326 - 328 vol.2 (2000).
[3] An Vu Tran et al., “Optical Add–Drop Multiplexers with Low Crosstalk,” IEEE Photonics Technology Letters, Vol. 13, No. 6, 582-584 (2001).
[4] AT&T Corp., Murray Hill, and N.J. “Optical Circulator For Dispersion Compensation,” United States Patent 5404413 (1993).
[5] W.H. Loh et al., “10cm chirped fibre Bragg grating for dispersion compensation at 10Gbit/s over 400 km of non-dispersion shifted fibre,” Electronics Letters 7th, Vol. 31, No. 25, 2203-2204 (1995).
[6] B. J. Eggleton et al., “Tunable Dispersion Compensation in a 160-Gb/s TDM System by a Voltage Controlled Chirped Fiber Bragg Grating,” IEEE Photon. Technol. Lett, Vol. 12, No. 8, 1022-1024 (2000).
[7] A. V. Tran et al., “A bidirectional optical add-drop multiplexer with gain using multiport circulators, fiber Bragg gratings, and a single unidirectional optical amplifier,” IEEE Photon. Technol. Lett. 15, 975-977 (2003).
[8] Yoshiaki Sato and Koh-ichi Aoyama, “OTDR in Optical
Transmission Systems Using Er-Doped Fiber Amplifiers
Containing Optical Circulator,” IEEE Transactions Photonics Technology Letters, Vol. 3, No. 11, 1011-1003 (1991).
[9] Naoto Kishi, et al., “Fiber-Optic Transceiver with an Optical Circulator for Optical Time-Domain Reflectometers,” IEEE Journal of Selected Topics in Quantum Electronics, Vol. 3, No. 4, 1045-1048 (1997).
[10] William B. Ribbens, “An optical circulator,” Appl. Opt. 4, 1037-1038 (1965).
[11] J. Nicholls, “Birefringent crystals find new niche in WDM networks,” WDM Solutions 3, 33-36 (2001).
[12] K. Shiraishi and S. Kawakami, “Spatial walk-off polarizer utilizing artificial anisotropic dielectrics,” Opt. Lett.15, 516-518 (1990).
[13] T. Sato, et al., “Laminated polarization splitter with a large split angle,” Appl. Phys. Lett. 61, 2633-2634 (1992).
[14] K. Shiraishi and S. Kawakami, “Fabrication of Spatial Walk-Off Polarizating Film by Oblique Deposition,” IEEE J. Quantum Electron. 30, 2417-2420 (1994).
[15] K. Muro, and K. Shiraishi, “Poly-Si/SiO2 Laminated Walk-Off Polarizer Having a Beam-Splitting Angle of More Than 20° ,” J. Lightwave Technol.16, 127-133 (1998).
[16] Y. T. Huang, “Polarization-selective volume hologram: general design,” Appl. Opt.33, 2115-2120 (1994).
[17] R. K. Kostuk, et al., “Polarization properties of substrate-mode holographic interconnects,” Appl. Opt. 29, 3848-3854 (1990).
[18] 陳敬��, “使用全像空間偏離偏極器之多埠光學循環器,” 國立交通大學 光電工程研究所 (2004).
[19] 上海交通大學 物理實驗中心,
http://pec.sjtu.edu.cn/ols/DocumentLib/recent/072011509/072011509_slides.pdf.
[20] Norio Kashima, Passive Optical Component for Optical Fiber Transmission, Artech House Publishers, (1995).
[21] THORLABS, http://www.thorlabs.com/.
[22] Jeff Hecht, Understanding Fiber Optics, 5th ed., Alexandrina Benedicto Wolf, (2006).
[23] Frank L.Pedrotti, S.J., Leno M. Pedrotti, and Leno S. Pedrotti, INTRODUCTION TO OPTICS, 3rd ed., Cindy Miller/GGS Book Services, (2007).
[24] Yohji Fujii, “High-Isolation Polarization-Independent
Quasi-Optical Circulator,” IEEE Journal of Lightwave Technology, Vol. 10, No. 9, 1226-1229 (1992).
[25] Yohji Fujii, “Polarization-Independent Optical Circulator Having High Isolation over a Wide Wavelength Range,” IEEE Photonics Technology Letters, Vol. 4, No. 2, 154-157 (1992).
[26] Lin-Dou Wang, “High-isolation polarization-independent optical quasi-circulator with a simple structure,” Optics Letters, Vol. 23, No. 7, 549-551 (1998).
[27] Hidetoshi Iwamura, Hiroshi Iwasaki, Kenichi Kubodera, Yasuhiro Torii, and Juichi Noda, “Simple polarisation-independent optical circulator for optical transmission systems,” Electron. Lett. 15, 830-831 (1979).
[28] Yasuyuki Okamura, Takayuki Negami, “Integrated optical isolator and circulator using nonreciprocal phase shifters: a proposal.”Applied Optics, Vol. 23, 1886-1889 (1894).
[29] N. Hanashima, K. Hata, R. Mochida, T. Oikawa, T. Kineri, Y. Satoh and S. Iwatsuka, “Hybrid optical circulator using garnet-quartz composite embedded in planar waveguides,” IEEE Photonics Technology Letters, Vol. 16, Issue 10, 2269 – 2271 (2004).
[30] N. Bahlmann, et al., “Nonreciprocal coupled waveguides for integrated optical isolators and circulators for TM-modes,” Optics Communications, 161, 330–337, (1999).
[31] Manabu Kagami, et al., “Simple Structural Quasi-Optical Circulator Composed of Tapering and Bending Waveguides,”Electronics and Communications in Japan, Part 2, Vol. 83, No. 7, 31-40 (2000).
[32] Jing-Heng Chen, and Der-Chin Su, “ Holographic spatial walk-off polarizer and its application to a 4-port polarization-independent optical circulator.” Optics Expres, Vol. 11, No. 17, 2001-2006 (2003).
[33] Jing-Heng Chen, et al., “Improved N-port optical quasi-circulator by using a pair of orthogonal holographic spatial-and polarizationmodules,”Optics Express, Vol. 12, No. 26, 6553-6558 (2004).
[34] D. K. Mynbaev, and L. L. Scheiner, Fiber-optic communications technology, 1st ed., Prentice Hall, New Jersey, chap 6 and 13 (2001).
[35] http://www.oki.com/cn/press/2009/04/z09015cn.html.