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Single Mode Tunable Diode Lasers From 1.9 to 2.3 Microns 

Focused Research, Inc. 

Santa Clara, CA 
 

External-cavity diode laser that emits single-mode radiation tunable from 1.87-2.06 and operates at room temperature

• Tunable diode lasers providing greater than 1 milliwatt of narrow linewidth (less than 1 MHz, full width half maximum) infrared light for spectroscopic and molecular sensing applications.
• Rapid single-mode scanning (greater than 6 nanometer per second) over the greater than 80 nm tuning range.
• In cooperation with the High Temperature Gas-Dynamics Laboratory at Stanford University, one laser is currently being used to analyze CO2 and H2O for combustion diagnostics.

• Press releases in Laser Focus World and NASA Tech Briefs.
• New laser system is available as a commercial product and has been highlighted at the Spring Topical meeting of the Optical Society of America and at CLEO.
• Commercial orders in excess of $100K have been received.
• Estimated product revenue of $1M over 4 years.

 

• Tunable lasers from 1.8 to 2.3 microns can monitor gaseous molecular and transient species such as CO2, CO,  NH3, CH4, and CN, which are not amenable to probing with standard diode lasers (0.6 to 1.6 microns).
• Rapid tuning and narrow-linewidth facilitate direct absorption spectroscopy.
• Used at NASA Goddard Space Flight Center for laboratory spectroscopy e.g., low temperature linewidth and linestrength measurements of CO2 transitions.
• New laser is used as a calibration source for ongoing work with tunable acousto-optic filters

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