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58 -- PARTICLE IMAGE VELOCIMETRY LASER SYSTEM COMPRISED OF TWO OSCILLATOR CAVITIES IN A SINGLE LASER HEAD SOL 1-130-DFL.1483 DUE 091698 POC Timothy P. Stubbs, Contract Specialist, Phone (757)-864-2460, Fax (757) 864-8863, Email T.P.STUBBS@larc.nasa.gov -- Joan Y. Crepps, Contracting Officer, Phone (757)-864-2521, Fax (757) 864-8863, Email J.Y.CREPPS@larc.nasa.gov WEB: Click here for the latest information about this notice, http://nais.nasa.gov/EPS/LaRC/date.html#1-130-DFL.1483. E-MAIL: Timothy P. Stubbs, T.P.STUBBS@larc.nasa.gov. This notice is a combined synopsis/solicitation for commercial items prepared in accordance with the format in FAR Subpart 12.6, as supplemented with additional information included in this notice. This announcement constitutes the only solicitation; quotes are being requested and a written solicitation will not be issued. This procurement is being conducted under the Simplified Acquisition Procedures (SAP). Specifications for PIV Laser System : DFL.1483 Dual pulsed Nd:YAG laser system optimized for particle image velocimetry. Comprised of two oscillator cavities in a single laser head. Detailed specifications are as follows: o Pulse separation continuously variable from 0ns to 1/(pulse rep rate). o Pulse repetition rate shall be 15Hz. o Energy at 532nm at 15Hz shall be at least 350mJ/pulse. o Combined beam path for single 532nm, cross-polarized output. o Dual lasers shall operate in continuous mode and a single-shot mode. o System is to have Beam Pointing stability of less than 100 micro-rad over an 8-hour period with a temperature variation of +/-3 degC. o Energy stability at 532nm is to be less than +/- 3%. o Pulse duration shall be less than 10ns. o Long-term power drift shall be less then 5% over an 8-hour period with a temperature variation of less than +/-3 degC. o Timing jitter less than 0.5ns. Beam Characteristics: o Divergence: <0.5mrad, full angle o Diameter: no less than 8 mm Laser is to have two settings for pulse duration at 532nm: o Operational mode: <10 ns o Alignment mode: nominal 200 us _______________________________________ NOTE on alignment modes : An alignment mode will allow operation of the laser pulse at a nominal 200 us duration which gives a very low second harmonic output at 532nm of about 2mJ. This is significant because another way to achieve low peak power is to turn down the lamp pump energy which will result in a more divergent laser beam as the thermal lensing of the laser is no longer correct. This results in a change in beam size and shape at the experiment. Addingfilters to reduce the beam energy is imprecise and can result in a steered alignment beam with respect to the operational beam. Adjusting the time-delay between flashlamp firing and Q-switch to reduce the laser outputs is also not acceptable for alignment purpose. __________________________________________________ o System is to utilize a dual rod birefringence compensated oscillator for maximized beam quality and energy. o System is to utilize standard 2.4-inch Nd:YAG rods for ease of maintenance and replacement. o System is to utilize oil/dust-free stainless steel beam tubes between all optical elements in the oscillator and between amplifier components for maximum protection of optical surfaces. o Intra-cavity beam path is to be completely sealed and purged with nitrogen for optical surface protection. o System is to utilize a composite graphite mechanical resonator kinematically for the best thermal and mechanical stability. o System is to have integral harmonic generator and beam separation optics within the enclosure for safety o System is to include a remote control. o System must be upgradable to IEEE-488 and RS-232 computer interface. o For simplicity of operation and maintenance, no faraday rotators are to be required for operation. o Flashlamps are to be changed without removal of laser pump chambers thereby maintaining system alignment. o Harmonic generator unit is to be sealed, purged and include desiccant for protection from moisture. o Harmonic generator to be rotatable to provide user-selectable polarization. o Harmonic generator to be upgradable to add a third and/or fourth harmonic crystal within the same purged package. o System is to have a laser head footprint not exceeding the following dimensions in any dimension, Length 48", Width 22" o Utilities are to be 220V, single phase, 30 Amps o Wheels or caster are to be mounted to power supply for ease of maintenance. o Beam profiles are to be included in the manuals. o Installation and training are to be included in price. o The system shall comprise of 2 lasers utilizing composite graphite cavities for length stability enclosed and kinematically mounted to an aluminum baseplate. The beams shall be tested for the most similar spatial mode profiles and then be routed through a single second harmonic generator. Both lasers, beam routing and second harmonic generator shall be integrated within a single enclosure with all CDRH certifications and safety interlocks. o The laser power supply shall be a single integrated unit with pulse forming networks, Q-Switch drivers, flashlamp supplies and cooling system contained within a single module which shall have casters or wheels. These are required so the system can be easily moved between locations depending on the nature of experiments and facilities availability. The provisions and clauses in the RFQ are those in effect through FAC 97-6. This procurement is a total small business set-aside. See Note 1. The SIC code and the small business size standard for this procurement are 3829 and 500, respectively. Thequoter shall state in their quotation their size status for this procurement. All qualified responsible small business sources may submit a quotation which shall be considered by the agency. Delivery to NASA Langley Research Center is required within 30 days ARO. Delivery shall be FOB Destination. The DPAS rating for this procurement is DO-C9. Quotations for the items(s) described above may be mailed or faxed to the Bid Distribution Office, NASA Langley Research Center, Mail Stop 144, Hampton, VA 23681, by the date/time specified and include, solicitation number, FOB destination to this Center, proposed delivery schedule, discount/payment terms, warranty duration (if applicable), taxpayer identification number (TIN), identification of any special commercial terms, and be signed by an authorized company representative. Quoters are encouraged to use the Standard Form 1449, Solicitation/Contract/Order for Commercial Items form found at URL: http://procure.arc.nasa.gov/Acq/Standard_Forms/Index.html to submit a quotation. Quoters shall provide the information required by FAR 52.212-1. Please note that payments are to be made by electronic funds transfer, accordingly, you must provide the mandatory information for electronic funds transfer with your representations and certifications. Failure to provide this information may delay or prevent the receipt of payments through the Automated Clearinghouse Payment System. If the end product(s) quoted is other than domestic end product(s) as defined in the clause entitled "Buy American Act -- Supplies," the quoter shall so state and shall list the country of origin. The Representations and Certifications required by FAR 52.2l2-3 may be obtained via the internet at URL: http://ec.msfc.nasa.gov/msfc/pub/reps_certs/sats/ FAR 52.212-4 and FAR 52.212-5 are applicable. Quotations are due by 2:00PM local time, September 16, 1998 to the address specified above and to the attention of the Bid Depository. Selection and award will be made to the lowest priced, technically acceptable quoter. Technical acceptability will be determined by information submitted by the quoter providing a description in sufficient detail to show that the product quoted meets the Government's requirement. Quoters must provide copies of the provision at 52.212-3, Offeror Representation and Certifications -- Commercial Items with their quote. See above for where to obtain copies of the form via the Internet. An ombudsman has been appointed -- See Internet Note "B". It is the quoter's responsibility to monitor this site for the release of amendments (if any). Potential quoters will be responsible for downloading their own copy of this combination synopsis/solicitation and amendments (if any). Any referenced notes can be viewed at the following URL: http://cbdnet.access.gpo.gov/num-note.html and http://genesis.gsfc.nasa.gov/nasanote.html. Posted 08/28/98 (D-SN243427). (0240)

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