NVESTIGATION OF PARAMETERS OF OPTICAL MATCHING OF FIBRE LIGHT CONDUCTORS AND SEMICONDUCTOR LASERS

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9 март 2023

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NVESTIGATION OF PARAMETERS OF OPTICAL MATCHING OF FIBRE LIGHT CONDUCTORS AND SEMICONDUCTOR LASERS

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MAQOLA ANNOTATSIYASI

The article presents the results of studying the parameters of optical matching of optical fibers with a micro lens at the end and semiconductor lasers. A technique is described for obtaining high efficiency of radiation from a rectangular end of semiconductor lasers into an optical fiber with a circular cross-section, for which it is necessary to direct a scattering laser beam with an elliptical cross-section to a circular cross-section of the core at the end of the fiber. A technique for measuring the efficiency of matching an optical fiber with a semiconductor laser is described. The dependence of the tuning efficiency on the semi-angle of the semiconductor laser beam is shown. The experimentally obtained dependences of the radiation power from the end face of the laser and the end face of a segment of single-mode optical fibers on the pump current are presented graphically. Special measures were taken to filter cladding modes in the segment of single-mode optical fibers. A device has been developed that provides highprecision positioning of the optical fiber and the emitting area of the semiconductor laser relative to each other along three linear coordinates and two angular ones. The principle of operation of the device, which provides mutual accurate positioning of single-mode optical fibers with a micro lens at the end and semiconductor lasers, is described in detail.

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Teglar

# optical fiber# photocurrent# photodiode# light guide# alignment# heterolaser# micro lens# optical tester

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Maqola idintifikatorlari

ROI:

https://eroi.uz/11.0008/A0323-0006

DOI:

Mavjud emas

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