Fabry-Perot wavemeter for shot-by-shot analysis of pulsed lasers

Jae Won Hahn, Seung Nam Park, Chunghi Rhee

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


A Fabry-Perot wavemeter for analyzing a pulsed laser operating in a single longitudinal mode with an injection-seeding technique has been constructed with an array detector. This wavemeter permits the real-time measurement of both the wavelength and the spectral effectiveness of the laser pulse produced at 10 Hz. The performance of the wavemeter is checked with a frequency-stabilized He-Ne laser and a double NdrYAG laser that operates in the single longitudinal mode. The precision of the wavemeter is found to be < 10 MHz. Also, we calculated the uncertainties in determining the wave number by processing a Fabry-Perot fringe pattern imaged on a linear-array detector. The calculation is done by changing the number of pixels of the array detector, the finesse of the Fabry-Perot etalon, the waist of the incident laser beam, and the magnitude of random noise.

Original languageEnglish
Pages (from-to)1095-1099
Number of pages5
JournalApplied Optics
Issue number7
Publication statusPublished - 1993 Mar

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering


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