Light Source for Cavity Ring-Down Spectrometer

Award Information
Agency: Department of Commerce
Branch: N/A
Contract: N/A
Agency Tracking Number: 37788
Amount: $199,976.00
Phase: Phase II
Program: SBIR
Awards Year: 1998
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Aculight Corp
40 Lake Bellevue, Suite 100, Bellevue, WA, 98005
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Dr. Charles Hamilton
 () -
Business Contact
Phone: (206) 451-9558
Research Institution
N/A
Abstract
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 available with these properties in a small, easy-to-use instrument Aculight proposes to use periodically poled LiNbO3 (PPLN) as the non- linear converter. A new "tandem" PPLN wavelength converter will demonstrate the narrow band wavelengths necessary for detecting H2O and O2 in Phase 1 without the need to mechanically move the nonlinear crystal or exchange the optical cavity mirror set. A single frequency device will be delivered to NIST in a Phase 2 program.

* information listed above is at the time of submission.

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