Measurement of optical fiber parameters and thermal core diffusion characteristics by digital image processing
| Autor: | J.A. Guerrero-Viramontes, Alejandro Martinez-Rios, F Chavez-Gutierrez, D Torres-Armenta, D. Toral-Acosta |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Optical fiber
Materials science business.industry Physics::Optics 020206 networking & telecommunications 02 engineering and technology Atomic and Molecular Physics and Optics law.invention Numerical aperture Core (optical fiber) Mode field diameter 020210 optoelectronics & photonics Optics law Digital image processing 0202 electrical engineering electronic engineering information engineering Fiber Electrical and Electronic Engineering Diffusion (business) business Engineering (miscellaneous) Photonic-crystal fiber |
| Zdroj: | Applied optics. 57(15) |
| ISSN: | 1539-4522 |
| Popis: | The simultaneous measurement of the numerical aperture (NA) and mode field diameter (MFD) of single-mode fibers was performed on several commercial fibers by means of digital image processing of the output light projected into a screen. In addition, the changes induced by core diffusion in an ultra-high (UH) NA fiber at several heat depositions from a CO2 laser source were measured. The measurement method was demonstrated to be useful to monitor the adiabaticity of this process, by taking the product of the NA and MFD to verify if it remains constant. The method provides a cheap alternative to measure these optical fiber parameters by using simple optomechanical elements and a readily available smartphone camera, and it can be easily implemented in the laboratory. |
| Databáze: | OpenAIRE |
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