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Download fileFiber cavities with integrated mode matching optics
journal contribution
posted on 2023-06-10, 04:29 authored by G K Gulati, H Takahashi, N Podoliak, P Horak, Matthias KellerMatthias KellerIn fiber based Fabry-Pérot Cavities (FFPCs), limited spatial mode matching between the cavity mode and input/output modes has been the main hindrance for many applications. We have demonstrated a versatile mode matching method for FFPCs. Our novel design employs an assembly of a graded-index and large core multimode fiber directly spliced to a single mode fiber. This all-fiber assembly transforms the propagating mode of the single mode fiber to match with the mode of a FFPC. As a result, we have measured a mode matching of 90% for a cavity length of ~400 µm. This is a significant improvement compared to conventional FFPCs coupled with just a single mode fiber, especially at long cavity lengths. Adjusting the parameters of the assembly, the fundamental cavity mode can be matched with the mode of almost any single mode fiber, making this approach highly versatile and integrable.
History
Publication status
- Published
File Version
- Published version
Journal
Scientific ReportsISSN
2045-2322Publisher
Springer Science and Business Media LLCExternal DOI
Volume
7Page range
5556 1-6Event location
EnglandDepartment affiliated with
- Physics and Astronomy Publications
Full text available
- Yes
Peer reviewed?
- Yes