Mechanisms to improve measurement accuracy through differential signaling in homodyne interferometers
Homodyne interferometers (HIs) utilize differential signaling to reduce common-mode noise and enhance measurement stability. However, their potential to improve measurement accuracy has not been thoroughly investigated. To address this gap, we reveal two unrecognized mechanisms enabled by differential-output signal (DS): self-compensation for odd-order periodic nonlinear error (PNE) and mitigation of PNE caused by ghost reflections. Leveraging these mechanisms, we propose a method for quantitatively extracting PNE using redundant phase information.
Authors
- Zichao Lin (ORCID: https://orcid.org/0009-0001-1631-1925)
- Xinbin Cheng (ORCID: https://orcid.org/0000-0002-3855-483X)
- Tongbao Li (ORCID: https://orcid.org/0009-0003-0480-9181)
- Wentao Zhang (ORCID: https://orcid.org/0000-0003-0035-256X)
- Hongyu Zhu (ORCID: https://orcid.org/0000-0003-4136-0910)
- Xiong Dun
- Xiao Wen Deng (ORCID: https://orcid.org/0000-0002-5956-6880)
- Dongbai Xue (ORCID: https://orcid.org/0009-0008-8384-6066)
- Yaao Yang
Institutions
- Guilin University of Electronic Technology (CN)
Publication Details
- Journal
- Optics Letters
- Published
- 2024-12-11
- DOI
- https://doi.org/10.1364/ol.545221
- Citations
- 2
- Primary Topic
- Advanced Measurement and Metrology Techniques
- Type
- article
- Field-Weighted Citation Impact
- 0.43
Funders
- National Key Research and Development Program of China