Topic
Step-index profile
About: Step-index profile is a research topic. Over the lifetime, 3104 publications have been published within this topic receiving 53199 citations.
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21 Apr 1992
TL;DR: In this paper, a fiber type wavelength conversion element, which has a fiber core made of non-linear optical crystal and in which a wavelength of incident ight is converted by nonlinear optical effects of the second order on the core, is used.
Abstract: In a fiber type wavelength conversion element, which has a fiber core made of non-linear optical crystal and in which a wavelength of incident ight is converted by non-linear optical effects of the second order on the core, a clad material is used, which has a refractive index to satisfy a condition of: 0.95
13 citations
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TL;DR: In this article, an experimental system for nondestructive measurement of the refractive index profile of an optical fiber preform was presented, and it was shown that the profile does not significantly change from the preform stage to the fiber stage.
Abstract: An experimental system for nondestructive measurement of the refractive-index profile of an optical fibre preform is reported. The result shows that the profile does not significantly change from the preform stage to fibre stage.
13 citations
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TL;DR: In this paper, a simple method of measuring the refractive index of a liquid was described, where the basic element is a thin wedge cell, and the source of light is a low power He-Ne laser.
Abstract: This paper describes a simple method of measuring the refractive index of a liquid. The basic element is a thin wedge cell, and the source of light is a low power He-Ne laser. Conditions are derived to obtain the best possible accuracy using this setup. The same setup can also be used for the determination of the refractive index of a solid medium such as glass.
13 citations
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08 Feb 2007TL;DR: In this article, a review of different fiber design approaches for high power lasers is presented, including the conventional step index profile design and methods for achieving single mode operation in high power laser such as bending, helical core fibers and Yb dopant profile designs.
Abstract: This paper reviews different fiber design approaches for high power lasers. First, we discuss the conventional step index profile design and methods for achieving single mode operation in high power lasers such as bending, helical core fibers and Yb dopant profile designs. Then we present new design approaches for reducing the SBS through profile and glass composition designs. Finally, we describe fiber designs to achieve single polarization and at the same time to mitigate the SRS effect.
13 citations
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13 citations