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IEEE JOURNAL OF QUANTUM ELECTRONICS, VOL. 37, NO. 4, APRIL 2001 505 Frequency Stabilization of a Novel 1.5-m ErYb
 

Summary: IEEE JOURNAL OF QUANTUM ELECTRONICS, VOL. 37, NO. 4, APRIL 2001 505
Frequency Stabilization of a Novel 1.5-m Er­Yb
Bulk Laser to a 39K Sub-Doppler Line at 770.1 nm
Cesare Svelto, Member, IEEE, F. Ferrario, A. Arie, Senior Member, IEEE, M. A. Arbore, and M. M. Fejer
Abstract--The second harmonic output at 770.1 nm of a
novel and compact Er­Yb:glass laser was frequency stabilized
against the sub-Doppler linewidth of a crossover line in the 39K
4S1 2-4P1 2 transition as obtained by saturation spectroscopy.
Efficient frequency doubling, with a conversion efficiency of
220% W 1, and with second harmonic power in excess of
15 W, was achieved in a waveguide made in a periodically poled
lithium niobate crystal. As measured through the analysis of the
closed-loop error signal, a laser frequency instability of 200 Hz
was obtained; the Allan standard deviation of the frequency sam-
ples was below 4 10 12 for integration times between 100
ms and 100 s, and reached a lowest floor level of 8 10 13 for
20 s 100 s. The measured frequency noise spectral density
was in good agreement with the analysis performed in the time
domain. Compared to previously published data for stabilized
solid-state laser sources in this wavelength region, these results

  

Source: Arie, Ady - Department of Electrical Engineering-Physical Electronics, Tel Aviv University
Fejer, Martin M. - Department of Applied Physics, Stanford University

 

Collections: Engineering; Physics