Method for producing optical fiber preform
DK202631587A1Pending Publication Date: 2026-09-09SUMITOMO ELECTRIC INDUSTRIES LTD
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Patent Information
- Application Number
- DK202631587
- Authority / Receiving Office
- DK · DK
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2025-03-11
- Filing Date
- 2026-08-19
- Publication Date
- 2026-09-09
Abstract
This method for producing an optical fiber preform comprises a step for welding a dummy tube gripped by a gripping part to a cladding tube. The dummy tube has a first end part to be welded to the cladding tube and a second end part gripped by the gripping part. The thickness of the dummy tube excluding the first end part varies along the length direction of the dummy tube.
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