Optical absorption measurement system

Patent · 01 January 1989

OSTI ID:867114

Draggoo, Vaughn G ^[1]; Morton, Richard G ^[2]; Sawicki, Richard H ^[3]; Bissinger, Horst D ^[1]

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1. Livermore, CA
2. San Diego, CA
3. Pleasanton, CA

The system of the present invention contemplates a non-intrusive method for measuring the temperature rise of optical elements under high laser power optical loading to determine the absorption coefficient. The method comprises irradiating the optical element with a high average power laser beam, viewing the optical element with an infrared camera to determine the temperature across the optical element and calculating the absorption of the optical element from the temperature.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4868768
• OSTI ID: 867114
• Country of Publication: United States
• Language: English

Related Subjects

/702/250/356/
absorption
absorption coefficient
absorption measurement
average
average power
beam
calculating
camera
coefficient
comprises
comprises irradiating
contemplates
determine
element
elements
infrared
irradiating
laser
laser beam
laser power
loading
measurement
measuring
method
method comprise
method comprises
non-intrusive
optical
optical absorption
optical element
optical elements
power
power laser
power optical
rise
temperature
temperature rise
viewing