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Phase-coherent light pulses for atom optics and interferometry.

T Heupel1, M Weitz, T W Hänsch

  • 1Max-Planck-Institute für Quantenoptik, 85748 Garching, Germany.

Optics Letters
|January 12, 2008
PubMed
Summary
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Researchers created a new laser light source using an acousto-optic modulator (AOM) and resonator. This system generates powerful, phase-coherent light pulses with controllable optical phase, reaching 100 W peak power.

Area of Science:

  • Optics and Photonics
  • Laser Physics
  • Quantum Optics

Background:

  • Generating high-power, phase-coherent light pulses is crucial for various scientific applications.
  • Existing methods often face limitations in power, coherence, or tunability.

Purpose of the Study:

  • To develop a novel and efficient source for generating powerful phase-coherent light pulses.
  • To demonstrate controllable optical phase and high peak power output.

Main Methods:

  • Utilizing an acousto-optic modulator (AOM) within an external high-finesse optical resonator.
  • Applying a radio-frequency (rf) pulse to the AOM to extract stored optical energy.
  • Employing a molecular iodine interferometer to verify phase coherence.

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Main Results:

  • Achieved 100 W of peak power in a 15-ns optical pulse.
  • Demonstrated controllable optical phase for extracted light pulses.
  • Confirmed mutual phase coherence of successive light pulses through interferometry.

Conclusions:

  • The developed system represents a novel and powerful source for phase-coherent light pulses.
  • The technique allows for controllable optical phase and high peak power, opening possibilities for advanced applications.
  • Successful demonstration of phase coherence validates the system's potential for precision optical experiments.