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http://dx.doi.org/10.3807/KJOP.2006.17.2.120

Novel Criterions to determine Optimized Power coupling in Grating-Assisted Fiber Couplers (GAFCs)  

Ho, Kwang-Chun (Dept. of IC Eng., Hansung University)
Ho, Kwang-Soo (Dept. of Mechanical Engineering, Keimyung University)
Publication Information
Korean Journal of Optics and Photonics / v.17, no.2, 2006 , pp. 120-126 More about this Journal
Abstract
A grating-assisted fiber coupler(GAFC), which consists of a thin-film waveguide with grating and circular optical fiber, is proposed and the optimized power coupling is evaluated by using a technique amenable to rigorous longitudinal modal transmission-line theory(L-MTLT). In addition, novel criteria to couple an optical signal incident through the grating waveguide to a single-mode optical fiber are proposed. The numerical result reveals that the optimized power coupling occurs at minimum-gap condition between rigorous modes rather than for the conventional phase-matching condition.
Keywords
Grating-Assisted Fiber Couplers; Longitudinal Modal Transmission-Line Theory; Optical Power Coupling;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 K. C. Ho, 'Longitudinal Modal Transmission-Line Theory (L-MTLT) of Multilayered Periodic Waveguides,' IEICE Trans. Electron., vol. E88-C, no. 2, pp. 1-5, 2005   DOI   ScienceOn
2 K. C. Ho, G. Griffel, and T. Tamir, 'Polarization Splitting in Lossy/Gainy MQW Directional Couplers,' J. Lightwave Technol. vol. LT-15, pp. 1233-1240, 1997
3 호광춘, 박천관, '광통신용 원통형 격자필터 설계를 위한 모드 전송선로이론,' 대한전자공학회논문집, SD-vol. 40, no. 4, pp. 217-223, 2003
4 T. Tamir and S. Zhang, 'Modal Transmission-Line Theory of Multilayered Grating Structures,' J. Lightwave Technol., vol. 14, pp. 914-927, 1996   DOI   ScienceOn
5 W. P. Huang, B. E. Little, and C. L. Xu, 'On Phase Matching and Power Coupling in Grating-Assisted Couplers,' IEEE Photon. Technol. Lett., vol. 4, pp. 151-153, 1992   DOI   ScienceOn
6 J. M. Hammer, R. A. Bartolini, A. Miller, and C. C. Neil, 'Optical Grating Coupling between Low-Index Fibers and High-Index Film Waveguides,' Appl. Phys. Lett., vol. 28, pp. 192-194, 1976   DOI
7 H. P. Hsu and A. F. Milton, 'Single- Mode Coupling between Fibers and Induffused Waveguides,' IEEE J. Quantum Electron., vol. 13, pp. 224-233, 1977   DOI
8 L. P. Boivin, 'Thin-Film Laser-to-Fiber Coupler,' Appl. Opt. vol. 13, pp. 391-395, 1974   DOI
9 K. C. Ho, and Y. K. Kim, 'Dispersion Characteristics of Optical Planar DFB Guiding Structures for Optical Communication,' IEICE Trans. Fundamentals, vol. E83-A, no. 6, pp. 1151-1160, June 2000
10 K. C. Ho and Y. K. Kim, 'On Leaky-Wave Approach of Rigorous Modes Coupled in Multi-layered Periodic Waveguides,' IEICE Trans. Electron., vol. E84-C, pp. 84-95, 2001