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A high repetition rate mid infrared laser (3-5 microns) capable of providing multispectral output covering all bands used by infrared missile would make a solid state laser based IRCM system a potentially attractive replacement for black body infrared jammers. We propose a novel laser concept that can provide the desired spectral output at repetition rates exceeding the current state-of-the-art. W ...

IN AN EFFORT TO REACH HIGHER POWERS, LASER RESEARCHERS HAVE DEVELOPED LARGER AND INCREASINGLY COMPLEX DEVICES. AN ALTERNATE SCALING APPROACH IS TO COMBINE THE OUTPUT POWER OF MANY SIMPLE LOW-POWER LASERS IN AN ARRAY. MICROLASERS ARE THE PERFECT ARRAY ELEMENTS BECAUSE THEY ARE MASS-PRODUCIBLE AND HAVE POLARIZED, SINGLE-FREQUENCY, DIFFRACTION-LIMITED OUTPUTS. RESEARCHERS HAVE DEVELOPED A UNIQUE M ...

Presently there are no broadly tenable, narrow linewidth souces that operate throughout the mid-infrared (mid-IR) region of the spectrum, from 1 to 5 microns. Traditional sources have very low spectral brightness (low power per unit spectral bandwidth). This proposal describes a novel approach to produce a source with very high spectral brightness, tunable over the range of 1.1 to 4.3 microns. ...

The high cost of near-to-mid infrared laser sources is problematic for many military applications, such as seekers where sources are short lived. Order-of-magnitude cost reductions are needed for 10-20 watt, 1-micron lasers. The proposed approach to reducing costs involves using novel manufacturing processes to greatly reduce parts count and assembly time, thus reducing cost. When applied to a ...

With new detectors capable of sensing 7.5 - 9 micron wavelengths, a future threat is emerging since these detectors can be used in seekers. The need is to counter this threat with a laser source operating at 7.5 - 9 microns. The source requirements are 5 - 10 Watts of average power and a repetition rate of > 10 kHz. The proposed laser source is a Nd:YAG-pumped tandem OPO system consisting o ...

115 Compact, Low-Cost Tunable Laser Source for Remote Chemical Sensing--Aculight Corporation, 40 Lake Bellevue, Suite 100, Bellevue, WA 98005-2480; (206) 451-9558 Dr. Mark S. Bowers, Principal Investigator Mr. Charles I. Miyake, Business Official DOE Grant No. DE-FG03-97ER82308 Amount: $75,000 Advanced laser sources are sought by the Department of Energy for remote sensing of gases and other ...

The Air Force Phillips Laboratory is seeking approaches for demonstrating frequency agile COIL (chemical oxygen iodine lasers) operating near 1.31 microns and at 10 kHz rep rates. Frequency conversion approaches must be capable of handling high average power levels, greater than 10 kWatts. Converting a COIL device to high peak powers will be necessary for frequency conversion. The approach prop ...

For future long-range theater ballistic missile defense, aircraft-mounted LADAR systems require eyesafe laser transmitters that produce higher pulse energy and better beam quality than currently available optical parametric oscillators (OPOs) pumped by diode-pumped Nd:YAG lasers. Aculight proposes a novel laser transmitter approach that can simultaneously generate the required pulse energy, b ...

Cavity Ring-Down (CRD) spectroscopy is developing into a precise tool for measuring gaseous contaminants in ultrahigh vacuum and other environments. Optimum sensitivity is obtained by driving the CRD spectrometer in the mid-IR part of the spectrum with about 100 mWatts of average power at 5 kHz and with pulse lengths of 10-50 nsec. Bandwidths of 100 MHz are required. There are no commercial lasers ...