Properties of fluorosilicate glass prepared by MCVD

Aksenov, V. A.; Ivanov, G. A.; Исхакова, Л. Д.; Likhachev, Mikhail E.; Chernook, S. G.; Shushpanov, O. E.

doi:10.1134/s0020168510100237

Cited by 6 publications

(2 citation statements)

References 11 publications

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“…At the center of the system there are vertical minirails (14), driven by a motor (15), along which, under the control of a stepper motor (11) connected through another ball screw, a Thorlabs PDF10C/M femtowatt infrared photodetector (Newton, NJ, USA) (10) moves, equipped with a collimator and an optical filter (20) that cuts off all spectral components of the signal with wavelengths below 1 µm. Opposite the photodetector (on the other side of the rail), on a static bracket, there is an Ausdom AW335 (La Puente, CA, USA) CCD camera in an aluminum box (6). The box is equipped with a motorized zero-aperture iris diaphragm (18) to protect against SK08IDM laser pump radiation.…”

Section: Methodsmentioning

confidence: 99%

“…Notably, for active fibers, including polarization maintaining active ones, the production of the preform also needs the precise control of luminescence characteristics. All these features will be subsequently transferred to the optical fiber, which is drawn from these preforms [6][7][8]. It is optimal if all the main characteristics of the optical fiber (including its longitudinal uniformity) are inherited as correctly as possible from the preform.…”

Section: Introductionmentioning

confidence: 99%

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A Non-Destructive Study of Optical, Geometric and Luminescent Parameters of Active Optical Fibers Preforms

Konstantinov,

Turov,

Latkin

et al. 2024

Optics

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This work is devoted to the scientific and technical aspects of individual stages of active optical fibers preforms’ optical-geometric parameters metrological control. The concept of a system presented makes it possible to carry out a study of a rare earth element distribution in the preform of an active optical fiber to monitor geometric parameters, and also to study the evolution of the refractive index profile along the length of the sample at a qualitative level. As far as it is known, it is the first description of the preform optical, geometric, and luminescent properties measurement within a single automated laboratory bench. Also, the novelty of the approach lies in the fact that the study of the refractive index profile variation along the length of the preform is, for the first time, conducted using the “dry” method, that is, without immersing the sample in synthetic oil, which makes the process less labor-intensive and safer.

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