High-resolution parallel multipass laser interferometer with an interference fringe spacing of 15 nm

Jeongmin Lee, Hosang Yoon, Tai Hyun Yoon

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


We present a high-resolution laser interferometer based on the parallel multipass configuration with a pair of right-angle prisms to increase the optical fringe subdivision order up to 21. In the experiment, a multipass homodyne Michelson interferometer (MHMI) with the fringe spacing of 15 nm was demonstrated, resulting in the displacement measurement with a measurement resolution of 180 pm limited by the sampling rate of the employed analog-to-digital converter. We show that the ultimate resolution of the demonstrated MHMI scales with 1/N and it is estimated to be 8.7 pm for N=21.

Original languageEnglish
Pages (from-to)1118-1122
Number of pages5
JournalOptics Communications
Issue number5
Publication statusPublished - 2011 Mar 1

Bibliographical note

Funding Information:
This research was supported by the Basic Research and NSL (National Space Lab) Programs through the National Research Foundation of Korea funded by the Ministry of Education, Science and Technology ( 2007-2-C00171 and 2008-2003197 ).


  • High-resolution interferometer
  • Interference fringe subdivision
  • Parallel multipass configuration

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering


Dive into the research topics of 'High-resolution parallel multipass laser interferometer with an interference fringe spacing of 15 nm'. Together they form a unique fingerprint.

Cite this