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The Field of Optical Communications (view source)
Revision as of 01:32, 23 March 2016
, 01:32, 23 March 2016→MIT Lincoln Labs LLCD/LADEE
==== LLGT ====
==== LLGT ====
The LLGT contained four 15cm 10W transmit telescopes and four 40cm Downlink telescopes. Its downlink telescopes were linked by fiber to an array of superconducting nanowire single photon detectors. All eight of these telescopes were then contained within an environmentally controlled enclosure. The entire LLGT device was transportable, and was thoroughly tested near MIT Lincoln Labs before being transported to White Sands where it stayed for the tests.
The LLGT contained four 15cm 10W transmit telescopes and four 40cm Downlink telescopes. Its downlink telescopes were linked by fiber to an array of superconducting nanowire single photon detectors. All eight of these telescopes were then contained within an environmentally controlled enclosure. The entire LLGT device was transportable, and was thoroughly tested near MIT Lincoln Labs before being transported to White Sands where it stayed for the tests.
==== LLOT ====
==== LLOT ====
The LLOT is a 60W transmitter with six uplink apertures. The downlink receiver utilizes a super conducting nanowire photon counting array and exhibits 78Mbits downlink with tracking and uplink acquisition abilities.
==== LLOGS ====
==== LLOGS ====
Based upon the earlier OGS, the LLOGS was LLCD's third backup solution. Created with a 1 meter downlink telescope, with 3 outrigger telescopes for uplinking and acquisition, this 60W transmitter and receiver is most similar to SSI's optical communications modules. It uses hardware post processing to downlink at 39Mbs, and a photo-multiplier tube array as its primary sensor.
==JPL 1U Optical Comms Terminal==
==JPL 1U Optical Comms Terminal==