Compact, Low-Cost Tunable Laser Source for Remote Chemical Sensing

Award Information
Agency: Department of Energy
Branch: N/A
Contract: DE-FG03-97ER82308
Agency Tracking Number: 37191
Amount: $75,000.00
Phase: Phase I
Program: SBIR
Awards Year: 1997
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
40 Lake Bellevue, Suite 100, Bellevue, WA, 98005
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Dr. Mark S. Bowers
 Principal Scientist
 (206) 451-9558
Business Contact
 Mr. Charles I. Miyake
Title: General Manager
Phone: (206) 451-9558
Research Institution
115 Compact, Low-Cost Tunable Laser Source for Remote Chemical Sensing--Aculight Corporation, 40 Lake Bellevue, Suite 100, Bellevue, WA 98005-2480; (206) 451-9558 Dr. Mark S. Bowers, Principal Investigator Mr. Charles I. Miyake, Business Official DOE Grant No. DE-FG03-97ER82308 Amount: $75,000 Advanced laser sources are sought by the Department of Energy for remote sensing of gases and other effluents emitted by the nuclear weapons production process. Currently-available laser sources suitable for such detection are too large, inefficient, and expensive to be used in portable systems. This project will develop a new laser source that is compact, low-cost, and suitable for a portable system to perform on-site and remote chemical spectroscopy in the mid-infrared spectral region. The new laser source combines recent advances in continuous-wave diode laser technology with state-of-the-art nonlinear optical frequency conversion technology. The source will generate radiation in the 2.5 to 4 micron region by frequency shifting a continuous-wave, single-frequency diode laser in an optical parametric oscillator (OPO) that uses the new nonlinear material, periodically-poled lithium niobate (PPLN). The output wavelength of the OPO can be tuned continuously in the desired spectral region using simple controls. The Phase I project will demonstrate the feasibility of the approach by building a discrete cavity PPLN OPO that is pumped by a tunable, high-power diode laser source. Measurements of the OPO oscillation threshold, mid-infrared output power, and tuning characteristics will be performed and compared to a numerical model. The stability of the OPO system will be quantified to determine the suitability of this device as a source for small, portable analysis instruments. Phase II will develop, fabricate, test, and deliver to DOE a prototype laser source for a fieldable spectroscopic instrument. Commercial Applications and Other Benefits as described by the awardee: The proposed technology will dramatically decrease the cost of tunable, narrowband, mid-infrared sources compared to present technologies. Several commercial applications exist, including methane/ethane sensing, proliferation monitoring sensors, and scientific research markets.

* Information listed above is at the time of submission. *

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