Design and characterization of large-core optical fiber for Light Peak applications

Chi Wai Chow, Chien Hung Yeh, Ling Gang Yang, Jiun Yu Sung, Sung Ping Huang, Ci Ling Pan, Gary Chou

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


Bandwidth demand for transferring data among different consumer electronic products is increasing rapidly. Due to issues of high propagation loss, electromagnetic interference, and limited bandwidth- distance product of the present copper-based electrical cables, consumer electronic devices may not provide the bandwidth required for future high-capacity applications. The Intel Corporation has proposed Light Peak technology, allowing data transfer between electronic devices at 10 Gb/s in optical domain. To establish a reliable Light Peak connection, robust optical fiber is highly required. In this paper, we discuss the fabrication and characterization of a new type of 80-μm large-core optical fiber. We perform 10 Gb/s bit-error-rate measurements using 850 and 1550-nm transceivers. The results show that even though we have enlarged the fiber core diameter by 60% (from 50 to 80 μm) in order to increase the laser-to-fiber alignment tolerance, transmission bandwidth and distance required by Light Peak can still be achieved in this new type of large-core optical fiber.

Original languageEnglish
Article number015006
JournalOptical Engineering
Issue number1
StatePublished - 1 Jan 2012


  • Fiber design
  • Large-core optical fiber
  • Multimode fiber

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