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Related Experiment Video

Updated: Jun 12, 2026

Quasi-light Storage for Optical Data Packets
07:45

Quasi-light Storage for Optical Data Packets

Published on: February 6, 2014

Fiber optic delay line memory.

D B Sarrazin, H F Jordan, V P Heuring

    Applied Optics
    |June 18, 2010
    PubMed
    Summary
    This summary is machine-generated.

    Digital synchronous delay line memory (DSDLM) can store over 22 million bits using optical fiber. Reliable storage requires precise temperature control (0.002°C) and operation at minimum dispersion wavelength.

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    Area of Science:

    • Optoelectronics
    • Data Storage Technologies
    • Fiber Optics

    Background:

    • Digital synchronous delay line memory (DSDLM) offers a potential high-density data storage solution.
    • Understanding the limitations of DSDLM concerning environmental factors is crucial for practical implementation.
    • Optical fiber presents a promising medium for DSDLM due to its high bandwidth and low loss characteristics.

    Purpose of the Study:

    • To develop a model for DSDLM that quantifies storage limitations based on temperature and dispersion.
    • To assess the feasibility of achieving high bit storage densities using single-mode optical fiber.
    • To identify critical operating parameters for reliable DSDLM performance.

    Main Methods:

    • Development of a theoretical model for DSDLM performance analysis.

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  • Simulation and calculation of storage capacity under varying temperature and dispersion conditions.
  • Identification of optimal operating wavelengths and temperature stability requirements for optical fiber-based DSDLM.

    • Main Results:

    • A model predicts storage limitations for DSDLM based on temperature fluctuations and medium dispersion.
    • Over 22 million bits can be reliably stored using single-mode optical fiber under specific conditions.
    • Optimal operation requires the wavelength of minimum dispersion and thermal stability within 0.002°C.
    • A 2000-bit memory can operate without thermal compensation with temperature fluctuations <80°C at 100 MHz.

    Conclusions:

    • Single-mode optical fiber is a viable medium for high-capacity DSDLM.
    • Strict control of temperature and operation at the minimum dispersion wavelength are essential for maximizing storage density.
    • The proposed DSDLM implementation using optical fiber and lithium niobate directional couplers demonstrates negligible signal errors.