Few-MHz bandwidth tunable optical filter based on a fiber-ring resonator
Fuente:
arXiv
Gespeichert in:
| Hauptverfasser: | , , , , , |
|---|---|
| Format: | Preprint |
| Veröffentlicht: |
2025
|
| Schlagworte: | |
| Online-Zugang: | |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| _version_ | 1866918058075881472 |
|---|---|
| author | Maron, Gabriele Bölian, Anton Hu, Xin-Xin Masters, Luke Rauschenbeutel, Arno Volz, Jürgen |
| author_facet | Maron, Gabriele Bölian, Anton Hu, Xin-Xin Masters, Luke Rauschenbeutel, Arno Volz, Jürgen |
| contents | We present a fiber-ring resonator that realizes an ultra-narrowband, high-extinction, low-loss, tunable optical filter. It consists of a pair of commercial variable ratio directional couplers that allow precise adjustment of the filter bandwidth and its on-resonance transmission. This design also grants access to multiple modes of operation, such as a simultaneous band-stop and band-pass filter. Our characterization reveals a bandwidth of less than 2 MHz, together with an extinction exceeding 20 dB. The tunability of the filter properties establishes our device as a versatile platform for selective frequency filtering with sub-natural atomic linewidth resolution. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_11953 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Few-MHz bandwidth tunable optical filter based on a fiber-ring resonator Maron, Gabriele Bölian, Anton Hu, Xin-Xin Masters, Luke Rauschenbeutel, Arno Volz, Jürgen Optics Quantum Physics We present a fiber-ring resonator that realizes an ultra-narrowband, high-extinction, low-loss, tunable optical filter. It consists of a pair of commercial variable ratio directional couplers that allow precise adjustment of the filter bandwidth and its on-resonance transmission. This design also grants access to multiple modes of operation, such as a simultaneous band-stop and band-pass filter. Our characterization reveals a bandwidth of less than 2 MHz, together with an extinction exceeding 20 dB. The tunability of the filter properties establishes our device as a versatile platform for selective frequency filtering with sub-natural atomic linewidth resolution. |
| title | Few-MHz bandwidth tunable optical filter based on a fiber-ring resonator |
| topic | Optics Quantum Physics |
| url | https://arxiv.org/abs/2506.11953 |