Observation of 30% Continuous-Wave Two-Photon Optical Amplification

  • Daniel J. Gauthier
  • Hope M. Concannon
Conference paper


Two-photon lasers have intrigued researchers for years because the dynamical behavior of this new class of highly nonlinear oscillator is very different from normal one-photon lasers. Experimental tests of the numerous, often conflicting, predictions regarding their behavior has been hindered by the lack of suitable gain media until the recent development of the dressed-atom two-photon gain medium. We observe ~30% two-photon optical amplification in a new type of laser-driven gain medium that is based on two-photon Raman scattering. This is ~300 times larger than previously reported dressed-atom gain.1 The enhancement is due to the relative insensitivity of the scattering process to broadening mechanisms allowing us to use a high-density atomic vapor.


Nonlinear Oscillator Pump Laser Gain Medium Relative Insensitivity Raman Gain 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


  1. 1.
    D. J. Gauthier, Q. Wu, S. E. Morin, and T. W. Mossberg, Realization of a continuous-wave two-photon optical laser, Phys. Rev. Lett. 68: 464 (1992).CrossRefGoogle Scholar
  2. 2.
    M. Poelker and P. Kumar, Sodium Raman laser: direct measurments of the narrow-band Raman gain, Opt. Lett. 17: 399 (1992).CrossRefGoogle Scholar
  3. 3.
    A. Hemmerich, C. Zimmermann, and T. \V. Hansch, Multiphoton transitions in a spin-polarized 3D optical lattice, Phys. Rev. Lett. 72: 625 (1994).CrossRefGoogle Scholar
  4. 4.
    P. Verkerk, B. Lounis, C. Salomon, C. Cohen-Tannoudji, J.-Y. Courtois, and G. Grynberg, Dynamics and spatial order of cold cesium atoms in a periodic optical potential, Phys. Rev. Lett. 68: 3861 (1992).CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1996

Authors and Affiliations

  • Daniel J. Gauthier
    • 1
  • Hope M. Concannon
    • 1
  1. 1.Department of PhysicsDuke UniversityDurhamUSA

Personalised recommendations