Optical isolators for high-power laser applications
SpaceTech develops optical isolators for satellite-based high-power laser applications, able to withstand launch loads and the space environment for a reliable long term operation.
In contrast to commercial devices, SpaceTech’s isolators feature a hardware completely free of organic material (no adhesives, no plastics), meeting the specific cleanliness requirements of space missions.
Key features of STI optical isolators
- Zero outgassing/adhesive free
- Vacuum compatible
- Radiation hardness
An example of the application for the optical Isolators of STI is the German-French Methane Lidar MERLIN, which is performed in under contract and in collaboration with Fraunhofer Institute for Laser Technology (ILT) in Aachen, Germany. It features the follwing key charactistics:
|Operational wavelength||1064 nm (*others on request)|
|Free aperture||4 mm|
|Damage threshold||10 J/cm2 @ 10 ns|
|Isolation||> 30 dB|
|Transmission loss||< 0.2 dB|
|Temperature range||-40°C to +50°C|
|Size (w/o polarizers)||64 x 41.5 x 40 mm3|
|Design loads||50 g|
SpaceTech is capable to deliver the full development and production chain inhouse: design of magnet field, optical design, thermal and structural analysis, manufacturing, assembly, and qualification testing. Thus allowing for a maximum in customization.