Frequency stabilization of an external-cavity diode laser by offset frequency looking to a stabilized He-Ne laser

Christian Sternkopf; Stefan Goellner; Eberhard Manske

doi:10.1117/12.2051521

2 May 2014 Frequency stabilization of an external-cavity diode laser by offset frequency looking to a stabilized He-Ne laser

Christian Sternkopf, Stefan Goellner, Eberhard Manske

Author Affiliations +

Proceedings Volume 9134, Semiconductor Lasers and Laser Dynamics VI; 91341C (2014) https://doi.org/10.1117/12.2051521
Event: SPIE Photonics Europe, 2014, Brussels, Belgium

Abstract

We present an external cavity diode laser which is frequency coupled to a stabilized He-Ne Laser with optical phase locked loop technology. For long term frequency stability the diode laser is locked with a fixed frequency offset to a stabilized He-Ne Laser at 633nm. A commercial PLL chip and the piezo-drive of the diode laser are used for precise frequency control. With this simple technique we develop a diode laser source which reach the frequency stability of a stabilized He-Ne Laser and still provide an optical output power of 5 mW or more. This high optical output power enables applications like multi axis homodyne interferometry with just one laser source.

Citation Download Citation

Christian Sternkopf, Stefan Goellner, and Eberhard Manske "Frequency stabilization of an external-cavity diode laser by offset frequency looking to a stabilized He-Ne laser", Proc. SPIE 9134, Semiconductor Lasers and Laser Dynamics VI, 91341C (2 May 2014); https://doi.org/10.1117/12.2051521

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