
DPSK demodulator (MINT)
Delay Line Interferometers
Exail’s Delay Line Interferometers (DLI) enhance your signal quality!
DLIs performs the interference between an incoming signal and itself delayed by one bit-time, allowing phase-keyed to amplitude-keyed signal conversion.
Our DLIs feature the widest tunable Free-Spectral Range (FSR) range available. They can have a fixed, but tunable by design, FSR (MINT product line) or can have an adjustable FSR (WT-MINT product line) thanks to a patented motorized technology

Features
Benefits
High extinction ratio for a highly contrasted interference pattern
Sensitive and accurate detection based on phase to amplitude conversion
High level of customization (adjustable or fixed FSR, wavelength range, wide range of possible interface fibers…)
- 2 options available:
- U for Ultrafast phase tuning using a piezoelectric
- L for Low voltage phase tuning using a thermisto
Applications
- Quantum Communications (DV-QKD)
D(Q)PSK demodulation
Sensing (Distributed sensing, Reflectometry, etc)