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Bilateral Optical Power Meter Comparison Between NIST and CENAM.

I Vayshenker¹, X Li¹, D J Livigni¹

¹Optoelectronics Division, National Institute of Standards and Technology, Boulder, CO 80305.

Journal of Research of the National Institute of Standards and Technology

|April 21, 2016

Summary

This summary is machine-generated.

This study compared measurement standards between NIST-USA and CENAM-Mexico using optical fiber and free-field methods. Results showed excellent agreement, with differences well within the combined uncertainty of both national metrology institutes.

Keywords:

international comparison optical fiber optical power

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Area of Science:

Optical Metrology
National Metrology
Standards Comparison

Background:

Accurate optical power measurements are crucial for scientific and industrial applications.
Interlaboratory comparisons ensure the consistency and traceability of measurement standards.
National Metrology Institutes (NMIs) like NIST and CENAM maintain primary reference standards.

Purpose of the Study:

To compare the reference standards for optical power measurements between NIST (USA) and CENAM (Mexico).
To validate the consistency of measurement capabilities between the two metrology laboratories.
To report measurement results at specific infrared wavelengths.

Main Methods:

Utilized a temperature-controlled optical trap detector for precise comparison.
Performed measurements using both open-beam (free-field) and optical-fiber-based techniques.
Conducted measurements at two key infrared wavelengths: 1302 nm and 1546 nm.

Main Results:

The largest difference observed between NIST and CENAM reference standards was less than 3.4 parts in 10^3.
This observed difference falls within the combined expanded uncertainty (k=2) of the reference standards.
Demonstrated high agreement between the measurement standards of the two participating NMIs.

Conclusions:

The reference standards for optical power measurements at NIST and CENAM are in excellent agreement.
The comparison validates the traceability and reliability of measurements performed by both laboratories.
Confirms the capability of both institutes to provide accurate and consistent optical metrology services.