NASA/Langley Research Center, Mail Stop 144, Industry Assistance Office, Hampton, VA 23681-0001

58 -- DIODE ARRAY STACK SOL 1-128-GLF.2220 DUE 051398 POC Cynthia W. Dea, Purchasing Agent, Phone (757)-864-2440, Fax (757) 864-8863, Email C.W.DEA@larc.nasa.gov WEB: Click here for the latest information about this notice, http://nais.nasa.gov/EPS/LaRC/date.html#1-128-GLF.2220. E-MAIL: Cynthia W. Dea, C.W.DEA@larc.nasa.gov. Modification Type: Simplified Acquisition Amendment -- RFQ/synopsis combo This notice constitutes Amendment No. 1 to the Combined Synopsis/RFQ for Diode Array Stack. Companies shall acknowledge all amendment(s) in their quote. This notice serves as the official amendment to subject synopsis/RFQ and a written amendment will not be issued. Due to transmission error the description is deleted in its entirety and replaced with the following: Diode Array Stack -- 2 Each -- Specifications as follows: Wavelength 807 +/- 3NM at full power; full width half maximum (FWHM): 3NM; pulse width: 200 microseconds; repetition rate: 10 HZ; emission area: 10MM x 10MM; power (peak): 1125 watts after lensing; collimation after lensing: fast axis divergence perpendicular to the active region: less than or equal to 2 degrees; slow axis divergence parallel to the active region: less than or equal to 10 degrees; package (heat sink) temperature: 20 Degrees C; package cooling: conductive cooled or liquid cooled; packagestyle: conductive cooled or liquid cooled; device life: 10 to the 9th power shots (200 microsecond pulses); note: package requires a distance of not greater than 0.100 inches between the adjacent end bars of the 2 different array packages when they are stacked in a direction perpendicular to the plane of the diode laser bars The due date for receipt of offers is extended to May 13, 1998. All other conditions of the original synopsis remain unchanged. Documents related to this procurement are available over the Internet and are in Microsoft Office Suite (Word 6.0, Excel 5.0, or PowerPoint 4.0) format and reside on the World Wide Web (WWW) server which may be accessed using a WWW browser application. The WWW address or URL of the NASA/LaRC Business Opportunities home page is http://procurement.nasa.gov/EPS/LaRC/class.html (0124)

Loren Data Corp. http://www.ld.com (SYN# 0308 19980506\58-0006.SOL)