Hertz level stabilization of a 657nm diode laser

ORAL

Abstract

We will describe a 657nm diode laser locked to a high finesse cavity using the Pound-Drever-Hall method. This laser will be used to drive the calcium clock transition in a next generation atom interferometer. A new high speed lock circuit has been designed to increase the servo bandwidth and allow for straightforward optimization. An optimized scan balance is also included to allow the laser to be scanned over many GHz mode-hop-free. Locked to a cavity with a finesse of 30,000 a linewidth on the kHz level has been achieved. With further optimization, better passive stabilization, and the use of a 300,000 finesse cavity we hope to achieve a linewidth on the Hertz level in the near future.

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Authors

  • Brian Neyenhuis

  • Student Workshop

    Physics, Stony Brook University, NY 11794-3800 USA, Physics Department, Western Michigan University, Kalamazoo, MI, 49008, USA, Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA, University of Pittsburgh, Pittsburgh, PA 15260, USA, R. Bo\v{s}kovi\'{c} Institute, Zagreb, Croatia, Bose Institute, Kolkata, India, U. Wisconsin, Argonne National Laboratory, U. Kentucky, Kansas State University, Rice University, Oak Ridge National Laboratory, University of Tennessee, Vienna University of Technology, University of Tennessee, Vienna University of Technology, University of North Alabama, Florence, AL, University of Connecticut, LANL, Auburn University, Voronezh State University, Russia, Oak Ridge National Laboratory, Rollins College, ATOMKI, Debrecen, GANIL, Caen, Stony Brook University, NY 11794-3800 USA, Hefei National Lab \& Dept of Chemical physics, Univ of Sci \& Tech of China, Dept of Earth \& Environ Sci, Univ of Illinois at Chicago, EFI \& Dept of Geophys. Sci., UofC, Chem Div, ANL, Phys Div, ANL, Phys Div, Argonne National Lab (ANL) \& Enrico Fermi Institute (EFI), Univ of Chicago (UofC), Department of Physics, University of Turku, 20014 Turku, Finland, Clarendon Laboratory, Oxford, SNL, Univ. Paris Sud, Orsay

  • Greg Doermann

  • Dallin Durfee

    Brigham Young University, Department of Physics and Astronomy, Brigham Young University