Frequency stabilization of a frequency-doubled 1556-nm source to the 5S1/2 → 5D5/2 two-photon transitions of rubidium

A. Danielli, P. Rusian, A. Arie*, M. H. Chou, M. M. Fejer

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Improvements in the power level of sources near 1550 nm and in the efficiency of waveguide frequency doublers enabled us to lock a frequency-doubled source directly to the 5S1/2 → 5D5/2 two-photon transitions near 778 nm. We obtained a sufficiently powerful second-harmonic signal, exceeding 2 mW, by doubling an external-cavity diode laser that was amplified by an erbium-doped fiber amplifier in a periodically poled LiNbO3 channel waveguide. Our experimental scheme can be used for realizing compact, high-performance frequency standards near 1550 nm for fiber-optic communication and sensing applications.

Original languageEnglish
Pages (from-to)905-907
Number of pages3
JournalOptics Letters
Volume25
Issue number12
DOIs
StatePublished - 15 Jun 2000

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