Optical fiber structure and a method of producing thereof

Details Optical fiber structure and a method of producing thereof Optical fiber structure and a method of producing thereof

G - Physics

02

B

G02B 6/036 (2006.01) C03B 37/01 (2006.01) C03B 37/012 (2006.01) C03C 13/04 (2006.01)

Patent

CA 2680395

An optical waveguide (100) comprises a core (COR1), a buffer (BUF1) surrounding said core (COR1), and a cladding (CLD1) surrounding said buffer (BUF1), said core (COR1), said buffer (BUF1) and said cladding (CLD1) comprising silica glass, and the refractive index (nBU) of said buffer (BUF1) being substantially equal to the refractive index of pure amorphous silica glass. The buffer (BUF1) may reduce bubble formation during manufacturing and may facilitate splicing of the waveguide (100). The numerical aperture of the waveguide (100) may be fine-tuned by adjusting the radial dimension (b1) of the buffer (BUF1) in order to compensate variations in the refractive index (nCO) of the core (COR1).

L'invention concerne un guide d'onde optique (100) qui comprend un cAEur (COR1), un tampon (BUF1) entourant ledit cAEur (COR1), et une gaine (CLD1) entourant ledit tampon (BUF1), ledit cAEur (COR1), ledit tampon (BUF1) et ladite gaine (CLD1) comprenant du verre de silice, et l'indice de réfraction (nBU) dudit tampon (BUF1) étant pratiquement égal à l'indice de réfraction du verre de silice amorphe pur. Le tampon (BUF1) peut réduire la formation de bulles au cours de la fabrication et peut faciliter l'épissurage du guide d'onde (100). L'ouverture numérique du guide d'onde (100) peut être réglée avec précision en ajustant la dimension radiale (b1) du tampon (BUF1) afin de compenser les variations de l'indice de réfraction (nCO) du cAEur (COR1).

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