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Optical Fiber Communication, 1983
With the increasing importance of monomode fibers, considerable thought has been devoted to design optimization. For telecommunications the technical goal of this work has been the simultaneous minimization of all forms of loss and dispersion over the widest possible wavelength region and with the broadest tolerance on key fiber parameters.
Donald B. Keck, V. A. Bhagavatula
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With the increasing importance of monomode fibers, considerable thought has been devoted to design optimization. For telecommunications the technical goal of this work has been the simultaneous minimization of all forms of loss and dispersion over the widest possible wavelength region and with the broadest tolerance on key fiber parameters.
Donald B. Keck, V. A. Bhagavatula
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Single mode optical fiber sensors
1995Single mode fibers are used for sensing when extreme sensitivity is required or when a well defined polarization of light is needed at a remote sensing point. Most sensors which use single mode fibers are of the intrinsic type (i.e. the action of the measurand on the light occurs within the fiber itself). The sensitivity advantage of single mode fibers
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Single-mode-fiber ring dye laser
Optics Letters, 1985Pulsed dye-laser operation in a single-mode fiber is demonstrated by incorporating an evanescent field amplifier into an all-fiber ring resonator. Laser threshold is obtained with 60 mW of pump power. Characteristics of the vanescent fiber amplifier are investigated as functions of pump power and dye solution index.
W V, Sorin, M H, Yu
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Stress-induced single-polarization single-mode fiber
Optics Letters, 1982The stress-induced birefringence in a single-mode optical fiber with an elliptical inner cladding or an elliptical core is calculated. Then the design of a fiber is proposed in which only one linearly polarized mode can propagate.
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Endlessly single-mode photonic crystal fiber
Optics Letters, 1997We made an all-silica optical fiber by embedding a central core in a two-dimensional photonic crystal with a micrometer-spaced hexagonal array of air holes. An effective-index model confirms that such a fiber can be single mode for any wavelength.
T A, Birks, J C, Knight, P S, Russell
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Optical Fiber Communication, 1984
As shown by Marcuse,1 the fields of a single-mode fiber near cutoff are approximately Gaussian. Splice loss can, therefore, be calculated by evaluating the coupling between misaligned Gaussian beams. Based on this analysis, Nemoto and Makimoto2 derived a general equation for splice loss between nonidentical single-mode fibers with combined transverse x,
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As shown by Marcuse,1 the fields of a single-mode fiber near cutoff are approximately Gaussian. Splice loss can, therefore, be calculated by evaluating the coupling between misaligned Gaussian beams. Based on this analysis, Nemoto and Makimoto2 derived a general equation for splice loss between nonidentical single-mode fibers with combined transverse x,
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Single-mode fiber-optical polarization rotator
Applied Optics, 1979A birefringent single-mode optical fiber is twisted mechanically in alternating sense on successive half-wave fiber sections. This arrangement, applicable in-line to a fiber, permits continuous adjustment of the state of polarization at the fiber output.
R, Ulrich, M, Johnson
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Single-mode fiber-optic directional coupler
Applied Optics, 1982A low-loss compact single-mode fiber optical directional coupler (SMF-ODC) is developed for use in SMF reflectometers or gyroscopes. The SMF-ODC is made of two sapphire ball lenses, a half-mirror, and two ferrules. Two fibers (endfaces are concave) are aligned parallel to each other in the ferrule. The optical and mechanical axes are tilted. Cross-talk
S, Masuda, T, Iwama
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Seventh Topical Meeting on Integrated and Guided-Wave Optics, 1984
Optical fibers were once thought of strictly as a transmission medium. It was expected that any processing of the optical signal would take place outside of the fiber; either by conventional electronics, or by devices based on planar integrated optics.
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Optical fibers were once thought of strictly as a transmission medium. It was expected that any processing of the optical signal would take place outside of the fiber; either by conventional electronics, or by devices based on planar integrated optics.
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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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