Eyesafe laser diode arrays for resonant pumping of Er-doped gain media optimized for cryogenically cooled operation

Award Information
Agency:
Department of Defense
Branch
Army
Amount:
$729,049.00
Award Year:
2010
Program:
SBIR
Phase:
Phase II
Contract:
W911QX-10-C-0004
Award Id:
87166
Agency Tracking Number:
A082-061-1600
Solicitation Year:
n/a
Solicitation Topic Code:
Army 08-061
Solicitation Number:
n/a
Small Business Information
2555 Route 130 South, Suite 1, Cranbury, NJ, 08512
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
170161595
Principal Investigator:
IgorKudryashov
Principal Scientist
(609) 495-2600
ikoudriachov@princetonlightwave.com
Business Contact:
MarkItzler
Chief Technical Officer
(609) 495-2551
mitzler@princetonlightwave.com
Research Institute:
n/a
Abstract
Growing interest in high-power lasers in the eye-safe spectral domain has instigated the development of solid-state lasers based on Er(3+)-doped materials. Impressive results have been demonstrated in resonantly pumped lasers based on Er:YAG crystals, and cryogenic cooling of the laser crystal has been shown to improve the laser performance. In these initial demonstrations, the pump lasers were InGaAsP/InP 1530 nm laser diode arrays operating at room temperature. The development of pump lasers specifically optimized for operation at cryogenic temperatures along with the solid-state laser crystal will provide disruptive benefits for the complete laser system, including increased pump power, improved laser efficiency, and a compact optical system architecture. Based on work completed during our Phase I effort, we will achieve further improvements in cryogenic pump operation based on an integrated approach for improving various design elements such as epitaxial structure, spectral stabilization, mechanical mounting techniques, and beam collimation. The goal of the program is to deliver a high brightness pump source with an output power of >500 W and a wall plug efficiency of >75%.

* information listed above is at the time of submission.

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