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Recovery of Laser-Diode Coherence Length by a Photorefractive Double Phase-Conjugate Mirror

Authors
  • Onodera, Ribun1
  • Ishii, Yukihiro1
  • Spirin, Vasilii V.2
  • Kamshilin, Alexei A.3
  • Jaaskelainen, Timo3
  • 1 Department of Electronics, University of Industrial Technology, 4-1-1, Hashimotodai, SagamiharaSagamiharaKanagawa, 229-1196, Japan , SagamiharaSagamiharaKanagawa
  • 2 A.F. Ioffe Physical-Technical Institute, 194021 St. Petersburg, Russia
  • 3 Väisälä Laboratory, Department of Physics, University of Joensuu, Joensuu, FIN-80101, Finland , Joensuu
Type
Published Article
Journal
Optical Review
Publisher
Springer-Verlag
Publication Date
Mar 01, 1998
Volume
5
Issue
2
Pages
105–108
Identifiers
DOI: 10.1007/s10043-998-0105-x
Source
Springer Nature
Keywords
License
Yellow

Abstract

We report an experimental study of dynamic coupling of two laser diodes (LD’s) with a double phase-conjugate mirror (DPCM) in a Bi12TiO20 fiber-like crystal. After the DPCM is recorded in the crystal, one of the LD’s is switched to the multimode regime, while the other remains lasing in the single longitudinal mode. Nevertheless, the DPCM produces phase locking of the single-mode laser with one of the longitudinal modes of the multimode laser. Only the longitudinal mode survives after the transmission through the DPCM, demonstrating the coherence length recovery of the multimode laser.

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