NASA SBIR 2018-I Solicitation

Proposal Summary


PROPOSAL NUMBER:
 18-1- S2.03-5162
SUBTOPIC TITLE:
 Advanced Optical Systems and Fabrication/Testing/Control Technologies for EUV/Optical and IR Telescope
PROPOSAL TITLE:
 Programmable Phase Nulling Interferometer for Giant Mirrors
SMALL BUSINESS CONCERN (Firm Name, Mail Address, City/State/Zip, Phone)
Boulder Nonlinear Systems, Inc.
450 Courtney Way, Unit 107
Lafayette , CO 80026-8878
(303) 604-0077

Principal Investigator (Name, E-mail, Mail Address, City/State/Zip, Phone)
Hugh Masterson
hugh@bnonlinear.com
450 Courtney Way, Unit 107 Lafayette, CO 80026 - 8878
(303) 604-0077

Business Official (Name, E-mail, Mail Address, City/State/Zip, Phone)
Mark Tanner
mtanner@bnonlinear.com
450 Courtney Way, Unit 107 Lafayette, CO 80026 - 8878
(303) 604-0077
Estimated Technology Readiness Level (TRL) :
Begin: 1
End: 4
Technical Abstract

We propose the development of a programmable phase nulling interferometer that extends the capability of a computer generated hologram (CGH) to null test a range of meter class telescope mirrors, instead of a single one for which it was designed. The active element is a crystal on silicon (LCoS) spatial light modulator (SLM). The SLM corrects for the residual wavefront remaining when a CGH is used to test a mirror for which it was not designed. An aperture F-number trade space exists in which a range of mirrors can be null tested with one CGH. The prototype can be modularly added-on to a railed interferometric test setup with a CGH. In Phase I a system will be constructed with a 512x512 SLM in a brassboard Twyman-Green interferometer to null test a 10 inch F3.5 or F4 parabolic mirror. It will resemble the proposed prototype, but without a CGH, as in this case the SLM alone can null the phase error from the mirror. Tests of null quality and repeatability will be performed and measures to eliminate modulo 2p phase artifacts will be implemented. The Phase 1 brassboard will be controlled with a labVIEW executable and delivered to NASA.

Potential NASA Applications

Optical test metrology for giant telescope mirrors; beam steering for satellite communication links; holographic optical trapping.

Potential Non-NASA Applications

Optical test metrology for giant telescope mirrors; optical test metrology for small scale commercial and custom optics; ground and satellite based beam steering; holographic optical trapping in biotechnology; multi-photon microscopy in biotechnology.


Form Generated on 05/25/2018 11:44:53