QUESTION: How long is the setup time for a Halide deposition compared to solution doping soot deposition?
ANSWER:
Assuming the MCVD system is set up for a standard preform, the halide system (rotary joint and injection system) can be installed in a day. A typical...
QUESTION: What size cores can be deposited with the Halide deposition?
ANSWER:
Typical core sizes are around 3 mm but are by no means the limit. Much larger cores can be deposited by increasing core passes as is typically done with MCVD. In addition, higher SiCl4...
QUESTION: What is the manufacturing time reduction compared to solution doping?
ANSWER:
The reduction in manufacturing time is significant, bringing time scales on the order of weeks to one day. To make preforms with relatively large diameter cores, solution...
QUESTION: What is the preform compositional taper using Halide deposition?
ANSWER:
There will be variations in the dopant profile from end to end of the preform but these are typically not very different than standard MCVD preforms. With rare earth preforms,...
QUESTION: What documentation have you published on how operators can better meet design goals?
ANSWER:
We have a full article blog, Critical Design Goals to Manufacture Optical Fiber Preforms, that can be found...
QUESTION:
We are experiencing chemical level changes in our gas delivery system bubbling process. You have staff that consults on this?
ANSWER:
We do. The bubbling process is critical, and it is important that the gas flow and liquid reagent temperature...
QUESTION:
We manufacture specialty optical preforms and fibers and are looking for solutions to our strength and deposition issues.
Can you help with that challenge?
ANSWER:
Fiber Optic Center does offer preform fabrication consulting services to...
QUESTION:
We are experiencing chemical level drops in our chemical bubbler. Is this a temperature issue or should we be focusing on other variables?
ANSWER:
Once the chemical bubblers are at proper levels and stable temperature the vapor deposition can...
QUESTION:
We are having issues with shrinkage and are focusing on the polish step. Looking for some steps, best practices, solutions, etc.
ANSWER:
The final step prior to the first deposition pass is a high-temperature (~2000 degrees C) flame polish....
QUESTION: Will properly cleaning the tube and extension tube in the quartz tube cleaning process increase fiber strength during deposition? ANSWER: Properly cleaning deposition tube assemblies (the tube and extension tube fused together) to remove contaminants...
