Low-Noise Balanced Photodetectors
Precision optoelectronic instruments designed for Coherent Detection and Weak Signal Extraction
- High CMRR
- Ultra-Wide Adjustable Gain
- Flexible Bandwidth
- Versatile Coupling

VL-BD-Si-Var
General-purpose Visible Light balanced photodetector, designed for coherent detection experiments requiring coverage of the Visible to Near-Infrared (VIS-NIR) spectrum.

VL-BD-IG-Var
Flagship Telecom Band balanced photodetector, serving as the standard demodulation tool for 1550nm LiDAR and fiber optic sensing systems.

VL-BD-IG-200AC
Specialized detector for High-Speed Dynamic Signals, designed to capture rapidly changing pulses or high-frequency beat signals.
InGaAs PIN Balance Detector
320–1700nm balanced detector
- Dual wideband chips (Si/InGaAs): Covers visible to NIR.
- 5 gain levels (10³–10⁷ V/A): For weak/strong signals.
- High CMRI: Eliminates background & laser noise.
- High speed: DC–150MHz bandwidth.
- Ultra-low noise: Pure weak interference signal output.



