Spin exchange specialized pump laser (SEOP)

High cost performance spin exchange pump light source


Spin Exchange Optical Pumping (SEOP) is a specialized pump laser designed for applications such as spin exchange optical pumping, metastable rare gas pumping, atomic magnetic field measurement, neutron rotation filtering, magnetic resonance imaging, and alkali metal pump lasers. The SEOP laser utilizes the special design of volume holography (VBG) to generate ultra narrow laser linewidth (<10GHz) and can produce high power of 30-100W. The laser wavelength in the SEO laser can also be controlled by adjusting the temperature of the volume holographic grating (VBG) to 150pm>10GHz, and can generate high power of 30-100W. The laser wavelength in the SEO laser can also be controlled by adjusting the temperature of the volume holographic grating (VBG) to 150pm

Spin exchange dedicated pump laser (English full name: Tunable Ultra-Narrow Band Diode Laser For Spin Exchange Optical Pumping (SEOP), Chinese agent: Shanghai Haoliang Optoelectronic Equipment Co., Ltd. is currently a high-power, high-efficiency, and cost-effective ultra narrow band tunable semiconductor laser designed for spin exchange applications. In the following text, we will provide a detailed introduction to the main applications, features, parameters, and configurations of spin exchange dedicated pump lasers

(1) Main application areas:

Spin exchange optical pump (SEOP);
Magnetic resonance imaging (MRI);
Measurement of atomic magnetic force;
Neutron rotation filter;
N-pumped alkali metal laser (DPAL);
Optical pumped metastable rare gas laser (OPMRGL)

(2) Main features of the product:

Maintain ultra narrow linewidth at high power:< 10ghz >10ghz >
Under low pressure, higher pumping efficiency is achieved for rubidium, cesium, and potassium, resulting in higher spin exchange rates;
U can achieve wavelength tuning between 20-60pm and 50-150pm;
Under perfect matching, a maximum tunable range of 300pm can be achieved;
U wavelength stability:< 2.5ghz>2.5ghz>
The U-system can be used for D1 and D2 line conversion of rubidium, cesium, and potassium alkali metals, as well as near-infrared spectral conversion of argon, xenon, and krypton;
Generate heat load on the gas pool;

(3) Product standard parameters:

Laser wavelengths: 770, 780, 794.7, 785, 811.3, 811.5, 852, 894.3, 904.5nm;
Standard output power: 35, 70, 100W;
Line width, FWHM： <10ghz>10ghz>
Tunable range: 300pm;
Spectral stability: ± 2.5GHz;
Amplitude stability: ± 0.5%;
Laser beam output: free space light, circularly polarized light;
Operating temperature: 15-25 ℃;
Storage temperature: 10-50 ℃;

(4) Laser configuration:

The laser system (SEOP) includes a laser head (capable of generating a 795nm linearly polarized parallel beam of 30-70W), laser driver (TEC controller, water cooling device), customized software interface, cable connectors, matched outputs, and more;

Figure 1 Spectral diagram of SEOP laser