Global ETD Search

81	Analysis and modeling of lossy planar optical waveguides and application to silicon-based structures Remley, Catherine A. 20 June 1995 (has links) This work is concerned with the modeling and analysis of lossy planar dielectric optical waveguides. Loss mechanisms which affect propagation characteristics are reviewed, and various representations of the propagation constant in the lossy case are defined. Waveguide structures which are susceptable to absorption and/or to leakage loss, in particular silicon-based structures, are discussed. The modeling and analysis of these waveguides by various computational techniques is considered. Two computational methods, the commonly used transfer matrix method and the recently developed impedance boundary method of moments (IBMOM), are reviewed and extended to the complex domain. A third computational method, which offers improved convergence of the IBMOM for structures with large stepwise changes in refractive index, is formulated. In this approach, the regions containing refractive index discontinuities are replaced by equivalent extended impedance boundary conditions, and expansion of the transverse field in the remaining region of continuous refractive index profile is carried out. A significant increase in the rate of convergence is demonstrated for various waveguide structures, including an anti-resonant reflecting optical waveguide (ARROW) structure. Two applications of the IBMOM with extended impedance boundary conditions are presented. In the first, the method is applied to the design of a chemical sensor. The sensor, a silicon-based ARROW structure, is designed to measure the refractive index of certain chemical substances with a high degree of accuracy. In a second application, graded index SiON waveguides fabricated at Oregon State University are characterized and compared to the theoretical model. Excellent agreement between the theoretical and measured coupling angles is shown. / Graduation date: 1996
82	Active optical filters based integrated photonic circuits / Tong, Jian, January 2006 (has links) Thesis (Ph. D.)--University of Texas at Dallas, 2006. / Includes vita. Includes bibliographical references (leaves 51-54).
83	Self-assembly approaches to photonic structures / Yin, Yadong. January 2002 (has links) Thesis (Ph. D.)--University of Washington, 2002. / Vita. Includes bibliographical references (leaves 187-201).
84	Photonic crystal waveguides based active and passive devices for phased array antenna systems Jiang, Yongqiang 28 August 2008 (has links) Not available / text Photonics Crystal optics Phased array antennas Optical wave guides
85	A theoretical study of the propagation characteristics of some optical waveguides by the beam propagation method / Osborne, Robert. January 1986 (has links) No description available. Optical wave guides. Optical communications Wave guides Optical fibers.
86	Multi-wavelength switching in SOAs Scholz, C. J. 08 1900 (has links) No description available. Optical communications Semiconductors Optical properties Optical wave guides Multiplexing
87	Integrated optical tapped-delay-lines : design, analysis and implementation Bao, Yufei 08 1900 (has links) No description available. Fiber optics Optical wave guides Electric power distribution
88	Advanced finite-difference time-domain techniques for simulation of optical devices with complex material properties and geometric configurations / Zhou, Dong. Huang, Wei-Ping. January 2005 (has links) Thesis (Ph.D.)--McMaster University, 2005. / Supervisor: Wei-Ping Huang. Includes bibliographical references. Also available online.
89	A wavelength monitor based on electroabsorption in quantum well waveguide photodiodes / Wu, Xiucheng. January 1999 (has links) Thesis (Ph.D.) -- McMaster University, 1999. / Includes bibliographical references (leaves 135-140). Also available via World Wide Web.
90	Advanced finite-difference time-domain techniques for simulation of optical devices with complex material properties and geometric configurations / Zhou, Dong. Huang, Wei-Ping. January 2005 (has links) Thesis (Ph.D.)--McMaster University, 2005. / Supervisor: Wei-Ping Huang. Includes bibliographical references. Also available online.

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