- BPD-200/400
OCT Grade Balanced Photo Detector
- Wide dynamic range (DC to 80, 200 or 400 MHz)
- Flat balanced level
- High reliability, gain and linearity
- Specially designed for artifact reduction
Description
A balanced photo detector provides an electric output that corresponds to the difference between two optical signals. This detection method is the standard in SS-OCT and reduces common mode noise due to laser power fluctuation. Our BPD has been specially developed for OCT applications with low back-reflection and flat balanced response to reduce undesired image artifacts. BPD yields a 3dB sensitivity advantage when detecting the signal inverted in phase between two input signals, and can be used in most heterodyne measurement systems.
Performance
- Wavelength range: 950 nm - 1600 nm
- Frequency response: 80 MHz, 200 MHz or 400 MHz
- Maximum input power: 20 mW (10mW for 400 MHz version)
Applications
- Swept Source-OCT
- Heterodyne measurement
- OFDR (optical frequency domain reflectometry)
