Department of Commerce, Mountain Administrative Support Center, Acqusition Management Division, MC3, 325 Broadway, Boulder, Co 80303-3328

66 -- MODE-LOCKED TI:SAPPHIRE LASER AND OPTICAL PARAMETRIC OSCILLATOR SOL 51RANB00C018 POC Procurement Technicians, 303/497-3221 E-MAIL: NOAA; MASC Acquisition Management Division, Brenda.S.Summers@noaa.gov. The National Institute of Standards and Technology (NIST)requires the upgrade of a system for the generation of ultrafast optical pulses over a broad wavelength spectrum ranging from 650nm up to 2300nm. The system will be used for conducting ultrafast optical measurements on experimental optoelectronic materials and devices. Additionally, the system will be used to perform ultrafast measurements on commercially available optoelectronic components and systems. This pulse generation system shall consist of a mode-locked titanium:sapphire laser and a synchronously pumped optical parametric oscillator (OPO). The mode-locked titanium:sapphire laser will be pumped with an existing Government-owned Spectra Physics Millenia X solid-state diode-pumped laser emitting 10W at 532nm wavelength. The laser system shall meet the following specifications, including but not limited to: (A) Mode-Locked Titanium:Sapphire Laser (1) Average Output Power -- the laser shall meet the following nominal power levels at these specified wavelengths with a broadband optics set: 600mW at 700nm, 2W at 800nm, 1.6W at 850nm, 1.2 at 900nm, 550mW at 950nm, and 300mW at 1000nm; (2)Pulse Duration, Shape and Rate -- the pulse width at the output port of the laser shall be less than 80fs when the average output power is 1.5W at a wavelength of 825nm plus/minus 25nm. Pulse duration between690-720nm wavelengths shall be less than 130fs. The pulse repetition rate shall be between 70 and 85MHz; (3) Tunability -- the laser shall be demonstrably tunable over the wavelength range of 700nm to 1000nm using one or more optic sets. The maximum pulse width over this wavelength tuning range shall be less than 130fs; (4) Beam Properties -- the full angle beam divergence of the laser shall be less than 0.6mrad. The laser shall oscillate in a TEM00 mode; (5) Stability -- the laser shall incorporate the closed loop temperature control of the titanium:sapphire rod; (6) Noise -- the noise of the laser shall be less than 0.5% rms over a 10Hz-2MHz bandwidth; (7) General -- the laser shall have an option for conversion to picosecond mode by easy and convenient removal of dispersion management elements from the cavity. (B) Synchronously Pumped Optical Parametric Oscillator (OPO)(1) Average Output Power -- the average out power of the OPO shall be greater than 300mW at 1550nm plus/minus 25nm when pumped by the laser; (2) Pulse Duration, Energy, Shape and Rate -- the pulse width exiting the OPO at 1550nm plus/minus 25nm shall be less than 130fs. These specifications are pulse width specifications assuming a hyperbolic secant squared pulse shapes, and are not autocorrelation width specifications; (3) Tunability -- the OPO signal shall be tunable over a wavelength range from 1100-1620nm using one or more optic sets when pumped with the optimal power and wavelength from the laser for the given operation wavelength; (4) Beam Properties -- the full angle beam divergence of the OPO shall be less than 1mrad; (5) Stability -- the OPO shall have active cavity length adjustment and stabilization capability so that its cavity length is always matched to that of the laser to less than 5um accuracy; (6) Noise -- the noise of the OPO shall be less than 2% rms over a 10Hz-1MHz bandwidth; and (7) General -- the Government's applications require that the signal and idler beams be temporally synchronous, but spatially separated by at least 75mm at the output port of the OPO. An existing 1997 model 3191-SIS Spectra Physics Tsunami mode-locked titanium:sapphire laser that is now the property of NIST, is available for trade-in. Bids are due on or about May 1, 2000. Posted 03/16/00 (W-SN435327). (0076)

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