TILBA-ATMO: Receiver for FSO telecom
Wavelength of operation
C-Band (1530-1570 nm) - Other on demand
Number of spatial mode diversity
3, 6 or 10 (up to 45)
Signal input beam
Single mode fiber or FSO
N.A. increase compared to SMF
MMF input : +20% to +70% - FSO input: arbitrary size
Signal output fiber type
Intended for free space optical communications and for LiDAR applications, the TILBA-ATMO component increases the power and range of laser sources.
This product coherently or incoherently combines several laser sources so that the transmission power can be increased without it being necessary to invest in very powerful and expensive sources.
Able to support up to ten inputs in a coherent combination or 45 inputs in an incoherent combination of cumulative power of about ten kilowatts, TILBA-ATMO can also optimize the properties of the beam such as its M2, its variance or its intensity or even generate annular shaped beams.
Intended for free space optical communications, TILBA-ATMO is an optics receptor without parallel in the world that is designed to increase the quantity of light collected at the receiver in the presence of atmospheric turbulence.
It improves the reliability of the optical link and lowers the power constraints even in the presence of strong turbulence by use of the modal diversity technique and a larger numerical aperture.
TILBA-ATMO is completely passive, compatible with standard telecommunications components and available as an onboard airborne version.
Laser communication is the next generation of secure, high-throughput free-space communications. However, its commercial deployment is still hindered by beam propagation through the atmosphere.
The TILBA-ATMO free space optics receptor is designed to improve the reliability of free-space optical links in the presence of atmospheric turbulence or pointing errors. Based on Multi-Plane Light Conversion (MPLC) technology, this spatial demultiplexer decomposes a beam wavefront profile into a limited number of spatial modes. Each mode is collected and sent to a single-mode fiber.
With its function similar to adaptive optics, but in a standard, off-the-shelf and mechanically passive component, TILBA-ATMO makes turbulence compensation more accessible and affordable than existing systems. This robust, compact solution also mitigates atmospheric turbulence for ground, air and space mobile applications, simplifying the deployment of laser communication links.
Also be sure to check out the TILBA-EMIT.