JOURNAL ARTICLE

An analog fiber optic link developed for electrical pulse signal transmission.

  • Published In: Review of Scientific Instruments, 2023, v. 94, n. 4. P. 1 1 of 3

  • Database: Academic Search Ultimate 2 of 3

  • Authored By: Lv, Z. J.; Sheng, L.; Li, Y.; Zhang, M.; Tian, G.; Ruan, L. B.; Zhang, Y. X.; Zhao, J. Z. 3 of 3

Abstract

The article focuses on the development and testing of a new type of analog fiber optic link (FOL) designed for fast pulse signal transmission in environments with strong electromagnetic interference (EMI), such as ionizing radiation experiments. This FOL converts electrical signals to optical signals via direct amplitude modulation of a distributed feedback (DFB) laser and restores them through photoelectric conversion, achieving a transmission bandwidth from DC to 155 MHz, a linear dynamic range exceeding 56 dB, output noise below 4.5 mV, and stable transmission over distances up to several kilometers. The system incorporates an automatic temperature control circuit to stabilize the laser's performance and a real-time calibration circuit to maintain gain accuracy despite environmental changes. Testing of four fabricated prototypes demonstrated consistent high linearity, low noise, minimal transmission delay (~21 ns), and stable operation across temperature variations, indicating the FOL's suitability for high-speed, long-distance analog signal transmission in challenging EMI conditions.

Additional Information

  • Source:Review of Scientific Instruments. 2023/04, Vol. 94, Issue 4, p1
  • Document Type:Article
  • Subject Area:Computer Science
  • Publication Date:2023
  • ISSN:0034-6748
  • DOI:10.1063/5.0132828
  • Accession Number:163419965
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