HeNe heterodyne light source (FS-HNL)
Photon Probe Co., Ltd.
About This Product
■Features
Reference light source for heterodyne measurement
composition
■The following is required as a light source for heterodyne measurement.
- Small fluctuation in optical frequency. (See next item for reason)
・The beat frequency can be set according to the measurement target
・The beat frequency must be stable. is. This light source meets these performance requirements.
■Beat frequency setting
Heterodyne measurements use two lights with slightly different wavelengths. This optical frequency difference is the frequency range in which electrical signals can be processed. There is no problem in that respect. What you need to be careful about when setting up is the amount of Doppler shift.
In other words, when the object to be measured moves, the Doppler effect occurs and the optical frequency shifts slightly. Please set the beat frequency to be greater than that shift amount. The amount of Doppler shift D (Hz) has the following relationship with the moving speed V (m/s) of the object to be measured.
Here λ is the wavelength of light. For a HeNe laser, the Doppler shift is 3.15MHz for a speed of 1m/s. When measuring such speeds, please select a beat frequency higher than this frequency. Please select from 5MHz or 10MHz. Switching is done with a single connector.
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Product
HeNe heterodyne light source (FS-HNL)
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Handling Company
Photon Probe Co., Ltd.
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Categories
1 Models of HeNe heterodyne light source (FS-HNL)
| Product Image | Part Number | Price (excluding tax) | Beat frequency | Beat frequency stability | Laser used | Output light amount | Output light extraction connector | Output light polarization characteristics | Output light quantity | Power supply | Size |
|---|---|---|---|---|---|---|---|---|---|---|---|
FS-HNL |
Available upon quote | 25, 50, 100, 500kHz, 1, 5, 10MHz | 1ppm | Frequency stabilized HeNe laser | 250μW or more for each channel | FC connector (Please connect using constant polarization fiber) Space propagation type is also available. | Both channels linearly polarized | 2 channels | AC100V, 2A | 430W x 150H x 320D (Reference value) Design according to the application. |
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About Company Handling This Product
- Japan