MEMS Grating Modulator
Description
The MEMS Grating Modulator is a reflective diffraction grating with controllable groove depth for operation over a broad range of wavelengths from the visible to the mid-infrared. It is capable of intensity variation similar to that of an acousto-optic modulator. The device design is based on BMC’s MEMS deformable mirror technology that uses hysteresis-free electrostatic actuators to deform a continuous mirror facesheet.
MEMS Grating Modulator
Specifications |
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|---|---|
| Center Wavelength: | Variable nm |
| Operational Wavelength Range: | 550-20000nm |
| Acoustic Mode: | Transverse |
| Operating Frequency: | .2 MHz |
| Light Polarization: | Random |
| Optical Power Density: | 100 KW/cm2 |
| Deflection Angle: | Wavelength Dependent mrad |
| Peak Contrast: | 250:1 |
| 3dB Rolloff: | 500kHz |
| Rise Time: | <3us |
Features
High throughput in the VIS to Mid IR
No polarization effects
<2.5us response time
Applications
Scanning Laser Microscopy
Spectroscopy
Free-space laser communication
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Ships from:
United States
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On FindLight:
since 2017
Frequently Asked Questions
The MEMS Grating Modulator is a reflective diffraction grating with controllable groove depth for operation over a broad range of wavelengths from the visible to the mid-infrared.
The features of the MEMS Grating Modulator include high throughput in the VIS to Mid IR, no polarization effects, and response times as low as 2.5 µs.
The applications of the MEMS Grating Modulator include scanning laser microscopy, spectroscopy, and free-space laser communication.
The maximum extinction frequency limit of the MEMS Grating Modulator is 100 kHz at -3dB, which is beta dependent.
The maximum operating voltage of the MEMS Grating Modulator is around 200V, which is device dependent.