High Efficiency kW-Class Semiconductor Laser Bars for Inertial Fusion Energy

Award Information
Agency:
Department of Energy
Branch
n/a
Amount:
$149,935.00
Award Year:
2011
Program:
SBIR
Phase:
Phase I
Contract:
DE-FG02-11ER90045
Award Id:
n/a
Agency Tracking Number:
98049
Solicitation Year:
2011
Solicitation Topic Code:
70 a
Solicitation Number:
DE-FOA-0000413
Small Business Information
Nlight Photonics Corporation (Currently nLight Photonics)
5408 NE 88th Street, Bldg E, Vancouver, WA, 98665-0990
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
799811646
Principal Investigator:
Paul Leisher
Dr.
(360) 713-5230
paul.leisher@nlight.net
Business Contact:
Jennifer Whalen
Mrs.
(360) 713-5239
jennifer.whalen@nlight.net
Research Institution:
Stub




Abstract
Laser Inertial Fusion Energy (LIFE) is an advanced energy concept that has the potential to meet future worldwide energy needs through fusion energy. In order to meet the performance and reliability needed to enable power generation, the flashlamp-pumped architecture currently used in NIF will need to be changed to a diode-pumped architecture. This in turn will necessitate considerable improvement to the current state-of-the-art power density, efficiency, reliability, and cost of high power laser diode arrays. As a means to efficiently scale up diode bar power while simultaneously reducing the overall $/Watt cost, nLight proposes a novel bipolar cascade diode laser architecture. With nLights expertise in high-efficiency epitaxy design, high-pitch lensed bar array packaging, and facet passivation, the proposed program is expected to deliver a kW-class laser diode bar operating at 872-nm with 70% efficiency. In addition to fusion energy, the proposed development is also expected to enable current commercial markets, especially in the areas of defense (applications include rangefinders, target designators, and fuses for artillery) and consumer applications such as spark plug replacement in large engines

* information listed above is at the time of submission.

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