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"Persamaan modus terkopel yang berhubungan dengan "intensity dependent refractive index (MI)" yang merupakan efek dari medium optik nonlinear adalah dasar dari perambatan berkas dalam konfigurasi simetris dari lima lapisan film tipis yang berbentuk planar, dengan dua pandu gelombang yang terkopel merupakan bahan nonlinear dengan indeks bias yang sama. Dua lapisan yang lain yaitu selubung dan substrat merupakan bahan linear dan mempunyai indeks bias yang berbeda. Basil simulasi menunjukkan bahwa untuk pandu gelombang simetris dengan panjang kopling dapat bekerja sebagai saldar optik dan pembagi daya 3 dB secara sempurna, bergantung terhadap koefisien kopling linear, perubahan daya masukan dan tebal pandu gelombang"

"Fundamentals of Nonlinear Optics encompasses a broad spectrum of nonlinear phenomena from second-harmonic generation to soliton formation. The wide use of nonlinear optical phenomena in laboratories and commercial devices requires familiarity with the underlying physics as well as practical device considerations. This text adopts a combined approach to analyze the complimentary aspects of nonlinear optics, enabling a fundamental understanding of both a given effect and practical device applications. After a review chapter on linear phenomena important to nonlinear optics, the book tackles nonlinear phenomena with a look at the technologically important processes of second-harmonic generation, sum-frequency and difference-frequency generation, and the electro-optic effect. The author covers these processes in considerable detail at both theoretical and practical levels as the formalisms developed for these effects carry to subsequent topics, such as four-wave mixing, self-phase modulation, Raman scattering, Brillouin scattering, and soliton formation. Consistently connecting theory, process, effects, and applications, this introductory text encourages students to master key concepts and to solve nonlinear optics problems?preparing them for more advanced study. Along with extensive problems at the end of each chapter, it presents general algorithms accessible to any scientific graphical and programming package. "

"This thesis gives an introductory overview of existing optical micromanipulation techniques and reviews the state-of-the-art of the emerging field of structured light fields and their applications in optical trapping, micromanipulation, and organisation. The author presents established, and introduces novel concepts for the holographic and non-holographic shaping of a light field. A special emphasis of the work is the demonstration of advanced applications of the thus created structured light fields in optical micromanipulation, utilising various geometries and unconventional light propagation properties. While most of the concepts developed are demonstrated with artificial microscopic reference particles, the work concludes with a comprehensive demonstration of optical control and alignment of bacterial cells, and hierarchical supramolecular organisation utilising dedicated nanocontainer particles."

"Nonlinear photonics and novel optical phenomena contains contributed chapters from leading experts in nonlinear optics and photonics, and provides a comprehensive survey of fundamental concepts as well as hot topics in current research on nonlinear optical waves and related novel phenomena. The book covers self-accelerating airy beams, integrated photonics based on high index doped-silica glass, linear and nonlinear spatial beam dynamics in photonic lattices and waveguide arrays, the theory of polariton solitons in semiconductor microcavities, and terahertz waves."

"ABSTRACTAn experimental micro optical branching circuit (HCBC) array has been constructed by the use of planar microlens. Three substrates of 3x1 nicrolens array have been used as collimating and focusing elements in the proposed circuit. A cube beam splitter was utilized as branching element with a branching ratio 1:1, for reflecting and transmitting beams, respectively. Evaluation has been carried out by measuring the coupling efficiency of the proposed HOBC. The branching characteristic for digital modulated signal has also been carried out. Theoretical calculations was taken into account for evaluating the performance of the branching circuit. "

"ABSTRACTIn optical communication system, optical star coupler devices are important for distributing optical signal from one incoming fiber into several outgoing fibers. In this research, an investigation on the design of optical fiber star coupler has been carried out by the use of simple way. Utilizing the cone-shaped end face of several fibers as receivers, optical star coupler has been constructed without using any optical element .An experiment to examine the efficiency of coupling light power from an incoming fiber to seven outgoing fibers has been excetited. The measurement shows that each sample of set outgoing fibers receives an equal amount of light power, which means that the individual coupling efficiency of respective outgoing fibers is equal. Therefore, it is concluded that the proposed star coupler is applicable to be utilized for distributing a light signal to several output terminals."

"ABSTRAKIn the optical communication system, we usually usesome optical components consisting oF very small lensesior coupling, branching, and transmitting lightwaves.Optical Fiber communication system has reached anintegrated optical circuitry by utilizing opticalelements with distributed-index medium. On the otherhand, a concept of stacked planar optics has beendeveloped based on the characteristics of distributedindex medium in planar optical elements. A group ofoptical components which is known as microoptics is nowa further development for realizing suitable microlensesfor the purpose oi optimizing such components. Foriocusing and imaging components, microlenses such asdistributed-index (DI) or gradient-index (GRIN) rodmicrolenses , tiny spherical lenses,and similar opticshave been utilized.In this research work I have studied theapplicability of planar microlenses as microopticcomponent. Two examples of such components are thebranching circuit and the fiber coupler for workingsystems in optical fiber communications have beendesigned and constructed. I have also studied thefocusing property of planar microlens with beam deviationmethod based on optical geometric concept.

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