Results 121 to 130 of about 75,635 (165)
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Single-Mode Fiber-Type Polarizer
IEEE Transactions on Microwave Theory and Techniques, 1982The simple and novel fabrication technique of the fiber-type polarizer has been demonstrated and the polarization characteristics of the polarizer have been investigated. The polarizer structure consists of the eccentric core and the metal coat on the thin buffer layer whose thickness is controlled by chemical etching.
T. Hosaka, K. Okamoto, J. Noda
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Pulse distortion in single-mode fibers
Applied Optics, 1980A theory is presented of the propagation of Gaussian pulses in single-mode optical fibers by expanding the propagation constant in a Taylor series that includes the third derivative with respect to frequency. The light source is assumed to have a Gaussian spectral distribution whose width relative to the width of the Gaussian signal pulse is arbitrary.
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Passive single-mode fiber depolarizer
Applied Optics, 1999We analyze and demonstrate a passive single-mode fiber depolarizer by using cascaded 2 x 2 couplers, recirculating delay lines, and a commercial laser diode. Design criteria and principles are discussed. We reduced the degree of polarization (DOP) to less than 20 dB by using ten cascaded couplers. The DOP can be reduced even further with more couplers.
P, Shen, J C, Palais
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Single-mode polymer optical fibers
2014 16th International Conference on Transparent Optical Networks (ICTON), 2014The mechanical properties of polymer optical fibers (POF) make them very interesting candidates for fiber optical sensors. Today POFs are mainly used for short range data communication. These fibers have a very large core of 980 μm. This large core is beneficial for handling and maintenance in fiber networks.
Reinhard Caspary +7 more
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Single-mode-fiber saturable absorber
Optics Letters, 1984Saturable absorption is performed on a signal in a single-mode fiber by allowing the evanescent field of the guided wave to interact with a saturable-absorbing dye. The evanescent field is exposed by mechanically removing a portion of the fiber cladding. The saturable material is then placed in close proximity to the fiber core.
W V, Sorin +3 more
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Modal noise in single-mode fibers
Optics Letters, 1981So-called single-mode fibers are generally bimodal in that they can propagate two modes with orthogonal polarizations. If both transverse offset and angular misalignment are present in a single-mode fiber connector, the loss will be mode dependent. Physical distortions of the fiber before a connector cause modal noise.
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Fiber optic gyroscope with single mode fiber coil
8th Optical Fiber Sensors Conference, 1992Fiber optic gyros (FOGs) are all solid state devices, compact, lightweight and highly reliable. These merits have attracted much attention and developments have been energetically implemented mainly for aerospace applications.
Shinji Motohara, Aritaka Ohno
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Equalization of dispersion in single-mode fibers
Applied Optics, 1981Optical pulse equalization in single-mode fibers using positive and negative chromatic dispersion has been demonstrated by Lin et al. [Opt. Lett. 5, 476 (1980)]. In this paper, an earlier theory of pulse propagation in single-mode fibers is extended to the case of a tandem arrangement of N fibers with different dispersive properties.
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All Single Mode Fiber Optic Gyroscope
Optics Letters, 1981We present an optical fiber gyroscope that, for the first time, is composed completely of single-mode fiber-optic components. This system has increased simplicity and stability over previous bulk-optic designs and has the potential for very high rotation sensitivity.
R A, Bergh, H C, Lefevre, H J, Shaw
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Microdeformation losses of single-mode fibers
Applied Optics, 1984In this paper, we consider the scattering losses of single-mode fibers that are caused by microdeformations such as microbends of the fiber axis and random fluctuations of the fiber core diameter. Since very little is known about the statistics of microdeformations of actual fibers, we assume that the autocorrelation functions of random bends and ...
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