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High Efficiency 808-nm VCSEL Arrays with Excellent Beam Quality

Award Information

Agency:
Department of Defense
Branch:
N/A
Award ID:
Program Year/Program:
2013 / SBIR
Agency Tracking Number:
N122-112-1033
Solicitation Year:
2012
Solicitation Topic Code:
N122-112
Solicitation Number:
2012.2
Small Business Information
nLight Photonics
5408 NE 88th Street, Bldg E Vancouver, WA -
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2013
Title: High Efficiency 808-nm VCSEL Arrays with Excellent Beam Quality
Agency: DOD
Contract: N68335-13-C-0077
Award Amount: $79,938.00
 

Abstract:

Today"s high energy Q-switched Nd:YAG lasers are often pumped by stacks of multiple edge-emitting diode laser bars since the vertical-cavity surface-emitting laser (VCSEL) traditionally have been lower in efficiency. In this effort we are proposing a novel VCSEL design which overcomes the efficiency bottleneck in conventional VCSEL while preserving its beneficial attributes such as uniform beam in the far-field, higher brightness, narrow spectral width, less sensitivity to thermal drift in center wavelength and lower cost of manufacturing. Under the proposed program, nLight will develop and demonstrate a high power, high efficiency and high beam quality VCSEL array near 808 nm, with efficiency compared to the state-of-the-art edge-emitting diode laser bars. nLight will achieve this by leveraging its industry-leading high efficiency 808-nm epitaxy design, and incorporating a cascaded bipolar VCSEL design. The end goal of the program is to achieve>60% wallplug efficiency and>1 kW QCW optical power in a 0.5 cm2 high power VCSEL array, with a spectral width less than 1 nm and a temperature coefficient of lower than 0.1 nm/°C.

Principal Investigator:

Zhigang Chen
Principal Investigator
(360) 566-4460
zhigang.chen@nlight.net

Business Contact:

Huimin Huang
Staff Accountant
(360) 566-4460
huimin.huang@nlight.net
Small Business Information at Submission:

nLight Photonics
5408 NE 88th Street, Bldg E Vancouver, WA -

EIN/Tax ID: 912066376
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No