Glass fiber hole plates for 2D fiber collimators and methods for alignment and fabrication for optical switching applications
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United States of America Patent
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Apr 18, 2023
Grant Date -
Oct 21, 2021
app pub date -
Apr 15, 2020
filing date -
Apr 15, 2020
priority date (Note) -
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Abstract
An optical circuit switch including a two-dimensional fiber collimator includes a hole plate to hold and align a plurality of optical fibers. Fiber pathways within the hole plate can be formed using a femtosecond laser irradiation chemical etching (FLICE) technique. The use of the FLICE technique allows for extremely precise channels to be formed which allows for fibers to be aligned more closely with their intended alignment. The technique also allows for the channels or fiber pathways to be formed in a thicker material, which allows for greater structural support and robustness of the fiber collimator in use.
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