Fibertek proposes to develop a TRL 6 spaceflight prototype multi-wavelength seed laser module that would scale deep space data rates to 1-2 Gbps. The seed laser is capable of supporting WDM across all CCSDS PPM pulse formats. These enhancements increase the data capacity scaling by >10x over the current state of the art high power WDM transmitter enabling the next generation of high speed DSOC links. In addition, the seed laser module can also be operated using On-Off keying at much higher data rates then PPM. With minor adjustment at >> 100 Gbps using coherent coms can be achieved as well as DPSK waveforms.
NASA’s Space Communications and Navigation (SCaN) roadmap for 2025 and beyond shows the need for optical links for Earth, lunar, inter-planetary, and relay networks requiring 10-100x higher data rates than current state-of-the-art space-based optical communications systems. Future laser communications system requirements include data rates >1 Gbps downlink from planetary bodies, and >100 Gbps low-geosynchronous earth orbit (LEO-GEO) networks. To support high-data-rate communications for long-range GEO and inter-planetary missions, a new class of laser communications transmitter is required with high average power (>20 W), high efficiency (>20%), and high peak power (>1 kW)—and capable of 16-ary and 128-ary pulse position modulation (PPM) formats. Wavelength-division multiplexed (WDM) systems must also have output power that is spectrally flat with minimal cross-talk.
NASA is looking to scale data rates from the 40-80 Mbps available in the current NASA deep space optical communication (DSOC )mission toward 1 Gbps from deep space. This SBIR technology is targeted toward beyond lunar, moon to mars, beyond Mars deep space communications
-NASA Deep Space mission – Mars, asteroid belts and beyond.
-Planetary, Heliophysics, and Astrophysics missions – Space weather, Sun studies out to L1, L2 at 100 Gbps
-Core technology support Terabit per second GEO core networks with upgraded seed laser.
This effort supports the need for large data volume, Terabit per second, DoD and commercial GEO inter-satellite networks and high data volume downlink for next generation LCRD style relay.
-Commercial Terabit per second GEO core high power WDM amplifiers for high speed (100G/channel) ring and mesh relay networks..
-DoD and U.S. Government intelligence communities for high speed senor networks.