Preprint
Laser written waveguides to the sample edge
- Abstract:
- A method is presented for fabrication of femtosecond laser written waveguides in glass to remove the need for polishing of substrates after processing. It is shown that by amplitude masking the fabrication laser beam near the sample edge and increasing the pulse energy it is possible to write waveguides that are not affected by edge aberrations and display mode profiles well matched to single mode fiber. Results are presented for different depths in fused silica and borosilicate glass substrates. The transmission from fiber to photonic circuit is significantly improved for situations where it is not possible to polish glass substrates after laser writing, creating new opportunities in photonic packaging.
- Publication status:
- Published
- Peer review status:
- Not peer reviewed
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- Files:
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(Preview, Pre-print, pdf, 4.1MB, Terms of use)
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- Preprint server copy:
- 10.48550/arxiv.2510.17649
Authors
+ Advanced Research + Invention Agency
More from this funder
- Funder identifier:
- https://ror.org/028y4g372
- Grant:
- NACB-SE02-P01
+ Engineering and Physical Sciences Research Council
More from this funder
- Funder identifier:
- https://ror.org/0439y7842
- Grant:
- EP/W025256/1
- EP/X017931/1
- Preprint server:
- arXiv
- Publication date:
- 2025-10-20
- DOI:
- Language:
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English
- Subjects:
- Pubs id:
-
2354781
- Local pid:
-
pubs:2354781
- Source identifiers:
-
W4415965562
- Deposit date:
-
2026-03-13
- ARK identifier:
Terms of use
- Copyright holder:
- Pong et al.
- Copyright date:
- 2025
- Rights statement:
- © The Author(s) 2025. This work is made available under the Creative Commons Attribution 4.0 License.
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