Laser frequency stabilization using a spatially multiplexed microfabricated Rb vapor cell
Abstract We demonstrate a laser stabilization based on a spatially-multiplexed, microfabricated rubidium vapor cell. This design integrates multiple optical apertures within a cell, enabling a single input beam to simultaneously capture both Doppler-broadened and saturated absorption spectroscopy signals while a dedicated non-absorbing aperture directs the beam toward the physics package. We achieve a frequency stability of 4 × 10 −13 at 100 s, and partial correction of the Doppler background allows the system to remain stable at the 10 −12 -level up to 10 4 s. This architecture significantly reduces optical complexity while providing a robust, high-performance laser source for deployable quantum sensors.
Authors
- Hyun-Gue Hong (ORCID: https://orcid.org/0000-0001-6686-0319)
- Seji Kang (ORCID: https://orcid.org/0000-0002-2024-3590)
- J Park
- S E Park
- Taeg Yong Kwon (ORCID: https://orcid.org/0000-0002-2598-4937)
- Meung Ho Seo (ORCID: https://orcid.org/0000-0003-3305-7321)
- Yeeun Na (ORCID: https://orcid.org/0000-0002-7562-7110)
- Jae Hoon Lee (ORCID: https://orcid.org/0000-0001-6365-558X)
- Young‐Ho Park (ORCID: https://orcid.org/0000-0002-7370-4995)
- Jaeuk Baek
- Sangwon Seo
- Sang-Bum Lee
- Soyeon Choi (ORCID: https://orcid.org/0009-0002-6251-136X)
Institutions
- Korea Research Institute of Standards and Science (KR)
- National NanoFab Center (KR)
Publication Details
- Journal
- Applied Physics Express
- Published
- 2026-04-01
- DOI
- https://doi.org/10.35848/1882-0786/ae5f5a
- Primary Topic
- Atomic and Subatomic Physics Research
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Agency for Defense Development