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Optical MEMS for lightwave communication

by Ming C. Wu, Olav Solgaard, Joseph E. Ford - J. Lightw. Technol , 2006
"... Abstract—The intensive investment in optical microelectro-mechanical systems (MEMS) in the last decade has led to many successful components that satisfy the requirements of lightwave communication networks. In this paper, we review the current state of the art of MEMS devices and subsystems for lig ..."
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Abstract—The intensive investment in optical microelectro-mechanical systems (MEMS) in the last decade has led to many successful components that satisfy the requirements of lightwave communication networks. In this paper, we review the current state of the art of MEMS devices and subsystems for lightwave communication applications. Depending on the design, these com-ponents can either be broadband (wavelength independent) or wavelength selective. Broadband devices include optical switches, crossconnects, optical attenuators, and data modulators, while wavelength-selective components encompass wavelength add/drop multiplexers, wavelength-selective switches and crossconnects, spectral equalizers, dispersion compensators, spectrometers, and tunable lasers. Integration of MEMS and planar lightwave cir-cuits, microresonators, and photonic crystals could lead to further reduction in size and cost. Index Terms—Microelectromechanical devices, optical fiber communication, optical signal processing, optical switches. I.
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NiFe plated biaxial MEMS scanner for 2-D imaging

by Arda D. Yalcinkaya, Hakan Urey, Sven Holmstrom - IEEE Photon. Technol. Lett
"... Abstract—A two-axis microelectromechanical systems mi-cromirror actuator is developed for retinal scanning display and imaging applications. The device operation makes use of magnetostatic torque produced by the combination of a flux generating custom-made high-frequency electrocoil and the NiFe lay ..."
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Abstract—A two-axis microelectromechanical systems mi-cromirror actuator is developed for retinal scanning display and imaging applications. The device operation makes use of magnetostatic torque produced by the combination of a flux generating custom-made high-frequency electrocoil and the NiFe layer deposited on the movable part. Modeling of the actuation in the magnetic domain, as well as the experimental characterization of the mechanical part is described. The device is capable of full optical scan angles of 88 (at 100-mA root-mean-square coil current) and 1.8 for slow and fast-scan directions, respectively. In combination with a mirror size of 1.5 mm, resulting opt D products are 132mm and 2.7mm for slow and fast axis, re-spectively. Atmospheric operation of the device is enabled due to high mechanical quality factors of the order of 3000. Index Terms—Displays, electromagnetic actuator, microelec-tromechanical systems (MEMS), microsystems, microtechnology. I.
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Analysis of the interchannel response in a MEMS 1 N2 wavelength-selective switch

by Jui-che Tsai, Chun-yi Yin, Chia-wei Sun, Ming C. Wu , 2007
"... A theoretical model based on Fourier optics and the power-coupling overlap integral is built to investigate the interchannel response in amicro-electro-mechanical systems 1N2 wavelength-selective switch. The simulation results demonstrate that the interchannel response depends significantly on the o ..."
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A theoretical model based on Fourier optics and the power-coupling overlap integral is built to investigate the interchannel response in amicro-electro-mechanical systems 1N2 wavelength-selective switch. The simulation results demonstrate that the interchannel response depends significantly on the output port location and the radius of curvature of the micromirrors. For the output originally aligned with the input along the dispersion direction, it is possible to achieve interchannel-response suppression by rotating the two-dimensional (2D) collimator array by a slight angle, e.g., 20°. Experimental results under different conditions are also shown. © 2007 Optical Society of America OCIS codes: 060.1810, 060.4510, 230.4040, 230.3990. 1.

Home Search Collections Journals About Contact us My IOPscience IOP PUBLISHING JOURNAL OF OPTICS A: PURE AND APPLIED OPTICS

by Dooyoung Hah, Ming C Wu , 2007
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