QUESTION:
Can deposition temperature cause absorption in final fiber measurements?
ANSWER:
Low deposition temperature reduces OH diffusion to the core from the tube and burner, and prevents tube shrinkage. The lack of diameter control causes tube wall thickening. With a thicker tube wall, more burner heat must be applied to maintain consistent deposition temperature. The deposition tube and the burner are sources of water, which can diffuse through glass layers toward the core.
Keeping your deposition temperature as low as possible prevents tube shrinkage AND prevents water from moving toward the core, which will cause absorptions in the final fiber measurements.
Have a technical question for Fiber Optic Center?
Please email your question to AskFOC@focenter.com and we will respond ASAP.
In addition to replying, we will post your question and our answer here on focenter.com. Everyone remains anonymous when we post so feel comfortable asking. You can also search your question and others in our content search.
ADDITIONAL CONTENT & RESOURCES:
- Category Resource: FOC Fiber & Cable Page
- Find More Information in this Blog: Critical Design Goals to Manufacture Optical Fiber Preforms:
This article is an original publication of Fiber Optic Center, Inc. It is shared publicly for educational and reference purposes to support learning and professional development within the fiber optics industry.
You are welcome to read, cite, or reference this material for non-commercial and educational purposes, as long as full credit is given to Fiber Optic Center, Inc. and the author.
Reuse, reproduction, or adaptation of this content — including rewriting, republishing, or incorporating it into new materials (such as websites, blogs, marketing text, technical guides, or AI-generated content) — is not permitted without prior written consent from Fiber Optic Center, Inc.
This material is protected by copyright law upon publication, even if not formally registered.
Use of this content for AI training, automated data extraction, or derivative content generation is prohibited.
Fiber Optic Center monitors and enforces the integrity of its intellectual property through digital identifiers and content tracking.
For more details, please refer to the Fiber Optic Center Content Use and Copyright policy.
