Aerius Photonics will present their latest developments in large InGaAs focal plane arrays, which are used for low light
level imaging in the short wavelength infrared (SWIR) regime. Aerius will present imaging in both 1280x1024 and
640x512 formats. Aerius will present characterization of the FPA including dark current measurements. Aerius will
also show the results of development of SWIR FPAs for high temperaures, including imagery and dark current data.
Finally, Aerius will show results of using the SWIR camera with Aerius' SWIR illuminators using VCSEL technology.
InP based diode lasers are required to realize the next generation of eyesafe applications, including direct rangefinding
and HEL weapons systems. We report on the progress of high power eyesafe single spatial and longitudinal mode
1550nm MOPA devices, where we have achieved peak powers in excess of 10W with 50ns pulse widths. A conceptual
model based on our recent MOPA results show the path towards scaling to high powers based on spatial beam
combination with operating conditions suitable for direct rangefinding applications. We also report on the progress
towards high power 14xx and 15xx nm pump lasers for eyesafe HEL systems.
Compact, efficient visible lasers are important for heads up displays, pointing and illumination, undersea
communications, and less than lethal threat detection. We report on high power red, green, and blue lasers with output
powers above 3 watts and efficiencies greater than 20%, 15%, and 5% respectively.
The development of on-chip grating stabilized semiconductor lasers for diode pumped solid state lasers is discussed. The
diode lasers, specifically at wavelengths of 808nm, 976nm, and 1532nm are stabilized via internal gratings to yield a
typical center wavelength tolerance of ± 1nm, FWHM of < 1-2nm, and a temperature tuning coefficient of < 0.09 nm/°C.
We also report on the CW and QCW operation of conduction cooled bars, stacks, and fiber coupled modules.
Simulations show that on-chip stabilized pump sources yield performance improvements over standard pumping
schemes. A comparison in laser performance is shown for typical DPSS configuration.
An investigation has been made of improving beam quality of a high power diode pumped solid state rod laser. It was determined that the beam quality is limited by aberrations present in the medium, which may be due to mode-medium effects in the Yb:YAG laser. A diffractive optics propagation model was developed to predict the phase distortions present on the laser wavefront at the resonator mirror. Resonator mirrors were then fabricated with the proper correction applied to correct the distorted wavefront. The beam quality improved from M2 = 2.0 to M2 =1.4.