Off-line-locked laser diode species monitor system

Patent · Tue Oct 17 04:00:00 EDT 1995

OSTI ID:1531414

Lee, Jamine; Goldstein, Neil; Richtsmeier, Steven; Bien, Fritz; Gersh, Michael

An off-line-locked laser diode species monitor system includes: reference means for including at least one known species having a first absorption wavelength; a laser source for irradiating the reference means and at least one sample species having a second absorption wavelength differing from the first absorption wavelength by a predetermined amount; means for locking the wavelength of the laser source to the first wavelength of the at least one known species in the reference means; a controller for defeating the means for locking and for displacing the laser source wavelength from said first absorption wavelength by said predetermined amount to the second absorption wavelength; and a sample detector device for determining laser radiation absorption at the second wavelength transmitted through the sample to detect the presence of the at least one sample species.

• Research Organization: Spectral Sciences Inc., Burlington, MA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: FG02-94ER81865
• Assignee: Spectral Sciences, Inc. (Burlington, MA)
• Patent Number(s): 5,459,574
• Application Number: 08/324,101
• OSTI ID: 1531414
• Country of Publication: United States
• Language: English