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Related Experiment Videos

Dual-polarization microchip laser at 1.53 microm.

Marc Brunel1, Axelle Amon, Marc Vallet

  • 1Laboratoire d'Electronique Quantique-Physique des Lasers, UMR CNRS PALMS 6627, Université de Rennes I, Campus de Beaulieu, F-35042 Rennes, France. brunel@univ-rennes1.fr

Optics Letters
|October 4, 2005
PubMed
Summary

This study demonstrates tunable two-frequency operation in a monolithic microlaser, enabling precise control of beat notes for advanced applications. The research provides a method for evaluating coupling constants, crucial for laser stability and performance.

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Area of Science:

  • Optics and Photonics
  • Laser Physics
  • Materials Science

Background:

  • Monolithic microlasers offer compact and stable laser sources.
  • Controlling polarization eigenstates is key for advanced laser functionalities.
  • Thermo-optic effects in crystals can influence laser output characteristics.

Purpose of the Study:

  • To demonstrate two-frequency operation in a composite Er,Yb:glass-LiTaO3 monolithic microlaser.
  • To investigate the thermo-optic effect for controlling wavelength and polarization.
  • To measure the Lamb-type coupling constant between polarization eigenstates.

Main Methods:

  • Utilizing a composite Er,Yb:glass-LiTaO3 monolithic microlaser.
  • Employing the thermo-optic effect of an intracavity birefringent crystal (LiTaO3).

Related Experiment Videos

  • Analyzing intensity noise spectra to determine coupling constants.

    • Main Results:

    • Achieved two-frequency operation at 1.53 micrometers.
    • Demonstrated tunable beat notes ranging from 0 to 60 GHz.
    • Measured Lamb-type coupling constants (C) between 0.33 and 0.86.

    Conclusions:

    • The thermo-optic effect in LiTaO3 provides effective control over laser eigenstates and beat notes.
    • The method allows for direct evaluation of coupling constants, vital for laser design.
    • The tunable beat note output has potential applications in radar and telecommunications.