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Ultra-high-speed holographic data storage system based on extending data page size.
Yongkun Lin1, Shenghui Ke1, Xianmiao Xu2
1Information Photonics Research Center, College of Photonic and Electronic Engineering, Key Laboratory of OptoElectronic Science and Technology for Medicine of Ministry of Education, Fujian Normal University, Fuzhou, 350117, China.
Scientific Reports
|March 4, 2026
Summary
This study introduces an ultra-high-speed holographic data storage system that expands data page size using digital micromirror devices (DMDs). This innovation overcomes spatial light modulator (SLM) limitations, achieving a 20.06 Gb/s data transmission rate.
Area of Science:
- Optical Engineering
- Data Storage Technologies
- Information Science
Background:
- High-density data storage demands faster transmission rates.
- Holographic data storage offers high potential but is limited by spatial light modulator (SLM) imaging areas.
- Current SLM technology restricts the data transmission rate in holographic storage systems.
Purpose of the Study:
- To propose an ultra-high-speed holographic data storage system.
- To overcome the limitations of spatial light modulators (SLMs) in holographic data storage.
- To enhance the data transmission rate by extending the data page size.
Main Methods:
- Implemented an optical system to stitch and align signal beams from two digital micromirror devices (DMDs), expanding the data page size.
- Modulated the reference beam using a mask to preserve DMD pixel resources.
- Utilized a 5:16 amplitude data encoding rule.
Main Results:
- Achieved an expanded data page size by stitching signals from two DMDs.
- Successfully conserved DMD pixel resources through mask modulation of the reference beam.
- Reached an ultra-high data transmission rate of 20.06 Gb/s.
Conclusions:
- The proposed system effectively overcomes SLM limitations by extending data page size.
- The integration of DMDs and optical stitching enables significantly higher data transmission rates.
- This advancement paves the way for more efficient high-density holographic data storage.
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