Исследование шумовых характеристик вертикально-излучающих лазеров с ромбовидной токовой апертурой для применения в компактном квантовом цезиевом магнитометре | Zendy

М.А. Бобров | Zendy; С.А. Блохин | Zendy; Н.А. Малеев | Zendy; А.Г. Кузьменков | Zendy; А.А. Блохин | Zendy; А.П. Васильев | Zendy; М.М. Кулагина | Zendy; А.С. Пазгалев | Zendy; И.И. Новиков | Zendy; Л.Я. Карачинский | Zendy; В.М. Устинов | Zendy

Open Access

Исследование шумовых характеристик вертикально-излучающих лазеров с ромбовидной токовой апертурой для применения в компактном квантовом цезиевом магнитометре

Author(s) -

М.А. Бобров,

С.А. Блохин,

Н.А. Малеев,

А.Г. Кузьменков,

А.А. Блохин,

А.П. Васильев,

М.М. Кулагина,

А.С. Пазгалев,

И.И. Новиков,

Л.Я. Карачинский,

В.М. Устинов

Publication year - 2021

Publication title -

письма в журнал технической физики

Language(s) - English

Resource type - Journals

eISSN - 1726-7471

pISSN - 0320-0116

DOI - 10.21883/pjtf.2021.24.51789.18940

Subject(s) - laser linewidth , relative intensity noise , vertical cavity surface emitting laser , materials science , optics , laser , optoelectronics , semiconductor laser theory , magnetometer , polarization (electrochemistry) , magnetic field , physics , chemistry , quantum mechanics

The possibility of using vertical-emitting lasers with intracavity contacts (IC-VCSEL) and a rhomboidal oxide current aperture for creating a non-zero magnetic field optically pumped atomic magnetometers (OPM) with a 133Cs vapor cell for magnetoencephalographic (MEG) systems were demonstrated. Relative intensity noise (RIN) and polarization resolved RIN of the IC-VCSEL in the 895 nm range with different mirror losses (linewidth) in the frequency range from 1 Hz to 100 kHz were experimentally investigated. Lasers with low mirror loss (narrow linewidth) have polarization resolved RIN comparable to amplitude noise. For IC-VCSEL with an output optical power of 0.8 mW and a linewidth of 55 MHz, the noise level measured is 148 dB/Hz in 1 Hz bandwidth at 40 kHz frequency. The ultimate sensitivity of OPM based on two-beam MX scheme with studied VCSELs was estimated as ~ 11 fT/√Hz.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research