Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Fast online rubidium DPAL atomic concentration measurement by 420 nm probe laser

Not Accessible

Your library or personal account may give you access

Abstract

The alkali atom concentration plays an important role in the performance of a diode pumped alkali vapor laser (DPAL). At the rubidium DPAL operational region, the alkali concentration is as high as ${{1}}{{{0}}^{13}} - {{1}}{{{0}}^{14}}\;{\rm{c}}{{\rm{m}}^{- 3}}$, which is “optically thick,” or opaque, for the 780 nm or 795 nm doublet D lines when the traditional scanning absorption spectrum method is used for concentration measurement. To solve this problem, we propose the use of a probe laser of 420 nm, which corresponds to the ${{{5}}^2}{{\rm{S}}_{1/2}}$ to ${{{6}}^2}{{\rm{P}}_{3/2}}$ transition and has a lower absorption cross section compared to the D-line doublet. Due to the moderate absorption strength at a fixed 420 nm probe wavelength, we realized fast, online measurement of the Rb concentration in a real-world DPAL. By combining it with the quasi-two-level model, we further provided the population distribution in the lower three energy levels. This fast, online diagnostic method could be well applied in DPAL concentration measurement, and could show the dynamics of a laser’s performance.

© 2021 Optical Society of America

Full Article  |  PDF Article

Corrections

Hui-Zi Zhao, Hong-Yan Wang, Hao Tang, Liang Li, Zi-Ning Yang, Wei-Qiang Yang, Kai Han, and Xiao-Jun Xu, "Fast on-line rubidium DPAL atomic concentration measurement by 420 nm probe laser: erratum," Appl. Opt. 61, 836-836 (2022)
https://opg.optica.org/ao/abstract.cfm?uri=ao-61-3-836

More Like This
Fast on-line rubidium DPAL atomic concentration measurement by 420 nm probe laser: erratum

Hui-Zi Zhao, Hong-Yan Wang, Hao Tang, Liang Li, Zi-Ning Yang, Wei-Qiang Yang, Kai Han, and Xiao-Jun Xu
Appl. Opt. 61(3) 836-836 (2022)

3D CFD modeling of flowing-gas Rb DPALs: effects of buffer gas composition and of ionization of high lying Rb states

Karol Waichman, Boris D. Barmashenko, and Salman Rosenwaks
J. Opt. Soc. Am. B 38(11) 3523-3531 (2021)

Resonance transition 795-nm rubidium laser

William F. Krupke, Raymond J. Beach, V. Keith Kanz, and Stephen A. Payne
Opt. Lett. 28(23) 2336-2338 (2003)

Data Availability

Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved