High-resolution Cs–Rb two-photon spectrometer for directly stabilizing a Ti:sapphire comb laser

Tze Wei Liu, Bo Wei Chen, Hsin Hung Yu, Wang Yau Cheng

Research output: Contribution to journalArticlepeer-review

Abstract

In this paper, we present a simple scheme for efficiently removing the residual Doppler background of a comb laser based two-photon spectrometer to be better than 10−3 background-to-signal ratio. We applied this scheme to stabilize the frequencies of a mode-locked Ti:sapphire laser directly referring to the cesium 6S–8S transition and rubidium 5S–5D transition. We suggest a standard operation procedure (SOP) for the fully direct comb laser stabilization and evaluate the frequency of two spectral lines at a certain temperature, by which we demonstrate an all-atomic-transition-based Ti:sapphire comb laser merely via a 6-cm glass cell.

Original languageEnglish
Pages (from-to)2421-2424
Number of pages4
JournalOptics Letters
Volume48
Issue number9
DOIs
StatePublished - 1 May 2023

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