Delay line interferometer module
Product description
All-fiber delay line interferometer modules are key components in quantum communication systems, enabling precise phase control with ultra low losses for protocols such as quantum key distribution, teleportation, and entanglement-based experiments. Compared to free-space setups, all-fiber configurations offer superior stability, compactness, and full compatibility with telecom infrastructure.
- Low loss
- Compact design
- Thermal drift minimization
- Continuous operation
- Mach-Zehnder interferometer
Optical delay management
Developing high-performance all-fiber interferometers requires extremely accurate optical delay management to maintain stable interference conditions. System designers must precisely match optical path lengths, ensure phase stability under environmental variations, and enable dynamic phase control for active quantum operations. Additional constraints include minimizing thermal drift, maintaining low loss, and integrating all functions into compact, reliable modules for continuous operation.
Turnkey integration
IDIL provides turnkey optical delay line interferometer modules tailored for interferometric quantum applications with fixed times delay coils, optical delay lines and fiber stretchers. Fixed time delay coils deliver stable, temperature-controlled path lengths serving as reference arms in Mach–Zehnder configurations. Optical Delay Lines and fiber stretchers enable fine and coarse phase adjustments, ensuring real-time compensation for environmental fluctuations. Integrated assemblies combine these components into compact, robust modules, simplifying integration for research and quantum technology developers seeking high phase stability and precision control.
Applications
- Quantum physics research
- Quantum computing
- Quantum Key Distribution (QKD)
- Photon synchronization in QKD networks
- Coherence control in quantum processors
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