Optical fiber preform having oh barrier and manufacturing...

Details Optical fiber preform having oh barrier and manufacturing... Optical fiber preform having oh barrier and manufacturing...

C - Chemistry, Metallurgy

03

B

C03B 37/018 (2006.01) C03C 13/04 (2006.01) G02B 6/036 (2006.01)

Patent

CA 2335879

An optical fiber preform having a substrate tube, a cladding layer and a core layer further includes a first barrier layer deposited by a material having a low OH diffusion coefficient between the substrate tube and the cladding layer, wherein the first barrier layer is for substantially preventing OH contained in the substrate tube from being diffused into the cladding layer. The optical fiber preform further includes a second barrier layer formed by depositing a material having a tow OH diffusion coefficient between the cladding layer and core layer, for substantially preventing OH which has been diffused into the cladding layer from the substrate tube from being diffused further into the core layer. Outer and inner OH barriers containing no P2O5 are deposited between the substrate tube and the cladding layer and between the cladding layer and the core layer in a deposition process, such that OH can be effectively prevented from being diffused from the substrate tube to the core layer in a core deposition process, a collapsing process or a closing process.

L'invention concerne une préforme de fibre optique comprenant un tube de substrat, une couche gaine et une couche coeur. Cette préforme comprend en outre une première couche barrière formée par une procédure de dépôt comprenant l'utilisation d'un matériau présentant un faible coefficient de diffusion de OH entre le tube de substrat et la couche gaine, cette première couche barrière servant à empêcher sensiblement l'OH contenu dans le tube de substrat de se diffuser dans la couche gaine. La préforme de fibre optique comprend en outre une seconde couche barrière formée par dépôt d'un matériau présentant un faible coefficient de diffusion OH entre la couche gaine et le coeur afin d'empêcher sensiblement l'OH diffusé dans la couche gaine à partir du tube de substrat de se diffuser dans le coeur. On dépose des barrières OH externes et internes ne contenant pas de P2O5 entre le tube de substrat et la couche gaine et entre la couche gaine et le coeur, de sorte à empêcher efficacement l'OH du tube de substrat de se diffuser dans le coeur pendant un procédé de dépôt, de compression ou d'obturation.

Affiliated with

Also associated with

Rating

Optical fiber preform having oh barrier and manufacturing... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical fiber preform having oh barrier and manufacturing..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical fiber preform having oh barrier and manufacturing... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1449009