Photonis Defense part of Exosens and its predecessors have been designing and manufacturing Traveling Wave Tubes (TWTs) since their invention in the early 1940’s. Photonis manufactures helix-type tubes that are constructed using the industry standard metal-ceramic construction. Our tubes are conduction cooled and feature rare earth periodic permanent magnets for power-free focusing.
Photonis TWTs are typically used for electronic countermeasures, radar applications, airborne military platforms, rack mount amplifiers, communications, and SatCom. Photonis Defense offers Conventional Traveling Wave Tubes, Pulsed Traveling Wave Tubes, MM Wave Traveling Wave Tubes, and Miniature Traveling Wave Tubes.
Need some answers? Ask our experts!
Contact us



What's new in Microwave devices?
See all
Sep 29th 2025
Spanish army major contract
Exosens secures major contract with the Spanish army for 17 000 advanced night vision monoculars

Oct 09th 2025
High-Temperature Detectors for Next Generation Reactors
Proven reliability up to 800°C and beyond for SMR and AMR applications. Built on the combined legacy of Photonis and Centronic—80+ years of neutron detection excellence.

Paris.
FROM Nov 18th 2025 TO Nov 21st 2025
Milipol Paris 2025
Join Exosens at Milipol Paris 2025, the world’s leading event for homeland security and safety, taking place at Parc des Expositions Nord Villepinte in Paris, France.