NASA SBIR 2007 Solicitation


PROPOSAL NUMBER: 07-1 O1.08-8373
SUBTOPIC TITLE: Long Range Optical Telecommunications
PROPOSAL TITLE: Very Large Solar Rejection Filter for Laser Communication

SMALL BUSINESS CONCERN (Firm Name, Mail Address, City/State/Zip, Phone)
Surface Optics Corporation
11555 Rancho Bernardo Road
San Diego, CA 92127 - 1441
(858) 675-7404

PRINCIPAL INVESTIGATOR/PROJECT MANAGER (Name, E-mail, Mail Address, City/State/Zip, Phone)
David A. Sheikh
11555 Rancho Bernardo Road
San Diego, CA 92127 - 1441
(858) 675-7404

Expected Technology Readiness Level (TRL) upon completion of contract: 4 to 5

TECHNICAL ABSTRACT (Limit 2000 characters, approximately 200 words)
Surface Optics Corporation (SOC) will develop a band pass filter comprised of a visible dielectric mirror and an induced transmission filter, applied to two sides of a cast polyimide membrane. The mirror/filter combination will block 95% of the incident solar radiation, while allowing a narrow pass-band for YAG laser communication. The combination of a visible dielectric mirror constructed on one side of a membrane and a band-pass filter on the second surface, offers a means of creating a very efficient solar reflector with relatively few coating layers. The exceptionally thin and flat optical substrate will minimize degradation of the laser signal. Meter-class membrane filters are sought by NASA to prevent over-heating of ground-based laser communication receivers operating during daylight hours.

In Phase I, induced transmission filter designs based on both silver and germanium films will be evaluated for overall filter performance. Small filters will be constructed and measured for optical performance and agreement with predictions.

In Phase II, the best designs will be applied to large membrane substrates approximately 2-m in diameter.

POTENTIAL NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
Long-range laser communication for future interplanetary science missions.

POTENTIAL NON-NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
Solar reflectors with a laser pass band are currently sought by the US government for protecting receivers on space-based defense satellites utilizing laser communication.

NASA's technology taxonomy has been developed by the SBIR-STTR program to disseminate awareness of proposed and awarded R/R&D in the agency. It is a listing of over 100 technologies, sorted into broad categories, of interest to NASA.

Architectures and Networks
Optical & Photonic Materials
Thermal Insulating Materials

Form Generated on 09-18-07 17:50