Space Qualified Low Capacitance InGaAs Photodiodes to 1 GHz
Space Qualified InGaAs Photodiodes to 1 GHz
Description:
The 290 and 350 micron diameter, low capacitance photodiodes have been specifically designed for a variety of space applications, from comparatively benign Low Earth Orbit radiation environment to deep space missions outside Earth’s protective magnetosphere. These photodiode modules utilize Discovery’s high-reliability InGaAs photodiode technology and are available in multiple packaging options for fibered and free space coupled systems.
Fig 1: DSC290 and DSC350 InGaAs Photodiodes with different packaging options
Fig 2: Frequency Response Curve for
Space Qualified Photodiodes
Salient Features:
- Large Dynamic Range
- High Shunt Impedance
- Lowest PDL (typical 0.05 dB)
- Useable spectral wavelength range of 800-1650 nm
- TO-can, K-connector or surface mount package options
- Fibered and Free Space Coupled options
- High Reliability
- One device for multiple wavelengths reduces operational & inventory costs
Applications:
- Free Space Optical Communications
- LIDAR
- Short Wave Infrared Spectroscopic Measurements
- Optical Power Measurements and Tap Monitors
- Front-End O/E Converter for Hazardous Space Environment
Available Models:
- DSC290S - Space Qualified InGaAs Photodiodes to 1 GHz
- DSC350S - Space Qualified InGaAs Photodiodes to 1 GHz
