Physics – Optics
Scientific paper
2002-04-19
Applied Optics vol. 43 (12), pp. 2528-2531 (2004)
Physics
Optics
6 pages, 3 figures
Scientific paper
10.1364/AO.43.002528
We demonstrate a technique for locking the frequency of a tunable diode laser to a ring-cavity resonator. The resonator is stabilized to a diode laser which is in turn locked to an atomic transition, thus giving it absolute frequency calibration. The ring-cavity design has the principal advantage that there is no feedback destabilization of the laser. The cavity has a free-spectral range of 1.3 GHz and $Q$ of about 35, which gives robust locking of the laser. The locked laser is able to track large scans of the cavity.
Banerjee Ayan
Das Dipankar
Natarajan Vasant
Rapol Umakant D.
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