Unidirectional single-mode Nd:YAG laser with a planar semimonolithic ring cavity

Jong Rak Park, Tai Hyun Yoon, Myung Sai Chung, Hai Woong Lee

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Unidirectional single-mode operation of a diode-pumped Nd:YAG laser with a planar semimonolithic ring cavity has been demonstrated at 1064 nm. The semimonolithic cavity consists of a laser active medium placed in a magnetic field, a crystal quartz plate, and an output coupling mirror, which form an optical diode by acting as a Faraday rotator, a reciprocal polarization rotator, and a partial polarizer, respectively. A single-mode output power of 155 mW and a slope efficiency of 17% were obtained with a 1.2-W diode laser at 809 nm. A laser linewidth of less than 100 kHz is inferred from a beat note frequency spectrum between two identical laser systems and continuous tuning to greater than 2 GHz was observed.

Original languageEnglish
Pages (from-to)4566-4569
Number of pages4
JournalApplied optics
Volume38
Issue number21
DOIs
Publication statusPublished - 1999 Jul 20
Externally publishedYes

ASJC Scopus subject areas

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

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