Frequency stability at the kilohertz level of a rubidium-locked diode laser at 192.114 THz

Ariel Bruner, Vered Mahal, Irena Kiryuschev, Ady Arie, Mark A. Arbore, Martin M. Fejer

Research output: Contribution to journalArticlepeer-review

Abstract

The frequency stability of a 1560-nm diode laser, whose second harmonic was locked to 87Rb sub-Doppler lines, was characterized by measuring the beat frequency relative to a 780-nm reference laser that was locked to sub-Doppler lines of another rubidium cell. The square root of the Allan variance reached a minimum value of 7.5 × 10−12 in 1 s, which corresponded to frequency variations of 1.44 kHz for the 1560-nm laser. The frequency reproducibility of the system was ≈1 × 10−9. These values are better than those that can be achieved by locking to Doppler-broadened transitions at the 1550-nm wavelength band.

Original languageEnglish
Pages (from-to)6410-6414
Number of pages5
JournalApplied Optics
Volume37
Issue number27
DOIs
StatePublished - 20 Sep 1998

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