06-032b Optoelectronics for Space Environments

Cost There are no procurements to impact

Schedule There are no major schedule dependencies

Technical Only dependency is on relations with ESA for qualification data on thales devices

Programmatic ESA prompt participation will expedite deliverables

Total Full-Cost = $xxxK

Description: Benefits:

Schedule/Costs: Risks:

Lead Center/PI: Melanie Ott, GSFCCo-Is: Center Funding Split: GSFC - $xxx(0.1CS)

NASA and Non-NASA Organizations/Procurements:

Deliverables:

Brief secription. Currently one of the most costly subsystems for laser based remote sensing, ranging and communications is the laser itself. Costly because of the lack of understanding regarding the COTS optoelectronic components that are necessary to build the system. Failures on ICESAT (GLAS) have placed the high power laser diode bar arrays as a high risk component that greatly needs attention. These devices are required and expensive such that several programs are banding together to achieve the goal of providing several paths to a qualified part. In addition space programs are more interested than ever in finding an alternative by using fiber amplifiers and lasers for systems that used to require solid state systems now that these systems have finally achieved high enough power densities Fiber amplifiers introduce a variety of COTS optoelectronic components that investigated on a components level can greatly reduce the risk of space flight usage. For this task the high risk parts will be investigated to provide a path to risk mitigated usage.

CS FTEs = 0.1

Programs that will benefit immediately from the work performed here include: LOLA, BIOMM, Laser Risk Reduction Prgm, Atlas, for high power laser diodes trade study and qualification document; Instrument Incubation Program, Code T Robotic Vision for Mars and Moon, LISA, MLCD, LVIS, ACCLAIM for fiber amplifier TRL assessments of components. In addition data is being shared with ESA to wided the vendor base and work more closely with ESA for sharing of lessons learned.

Deliverables will include but are not limited to: HPLD array trade study, High power laser diode bar array qualification and guidelines document High power single laser diode qualification and guidelines documentSpace qualification data from ESA on high power arrays and fiber based components lessons learned, TRL assessments including data on fiber laser components in space environments. ESA workshop lessons learned presentation slides

Qtr 1: ESA/NASA optoelectronics workshop, Oct 2005Qtr 1 - Qtr 3: Continue laser diode trade study, Continue drafting qualification documentsQtr 1 – Qtr 3: Complete procurements for fiber amp testing (funded by Code T Robotic Vision) assemble test set up and run radiation test of several fiber amp candidates. Analysis completed in Qtr 3.Qtr 4: Submit final drafts of both qualification docs (diode arrays and single emitter types), upload to nepp websiteQtr 4: Submit final report on TRL assessments for fiber amps including test report on radiation testing.Qtr 4: Post presentation slides to website from ESA/NASA workshop.