特長
● Adjustable scanning range: By adjusting the cavity length of piezoelectric ceramics, different wavelengths can be scanned within a certain range. This adjustability makes it flexibly applicable to a variety of spectral analysis scenarios;
● Compact design and stability: It has a compact design for easy integration and use. Its physical structure has been optimized to achieve good mechanical stability and resistance to temperature drift interference;
● High reflectivity mirror: It has high reflectivity to enhance the interference effect. The reflectivity of these mirrors is usually above 99% to improve resolution and sensitivity;
● High resolution: It can achieve high spectral resolution, which is much higher than ordinary spectrometers;
● Multi-purpose: Scanning Fabry-Perot interferometers can be used in a variety of application scenarios, including laser frequency stabilization, gas spectral analysis, astronomical observation, material property measurement, etc.
主要パラメータ
Specification
PN# | SFPI-800A(DP) |
Wavelength range | 875 ~ 1275nm |
Free spectral range | 1.5GHz |
Cavity finesse | > 200(Typ250) |
Resolution | < 7.5MHz |
Optical cavity length | 50mm |
Dimensions | Φ50.6 X 93.8mm |
Response Time
Transmitted PD signal when using 1063nm laser sweep. Note that no careful mode matching is performed at this time, So the peak spacing is about 1.5GHz.
The peak a was fitted and the peak position and width were 59.25 and 0.198 respectively.
The peak b was fitted, and the peak position and width were found to be 98.42 and 0.185 respectively.
The overall result shows that the finesse at 1063 nm is about 204.5
