Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Pressure-Induced Shift and Broadening of 1510-1540-nm Acetylene Wavelength Calibration Lines

Published

Author(s)

William C. Swann, Sarah L. Gilbert

Abstract

We have measured the pressure-induced shift for 15 lines of the υ1 + υ3 rotational-vibrational band of acetylene 12C2H2. These lines are useful as Wavelength references in the 1510-1540-nm region. We find that the pressure shift varies from +0.008(2) pm/kPa for line R1 to +0.043(2) pm/kPa for line R27, with many of the lines exhibiting a shift near +0.017 pm/kPa (or, equivalently, +2.3 x 10-3 pm/Torr or -0.29 MHz/Torr). In addition we have measured the pressure broadening of these lines and find that it also varies with line number and is typically 0.7 pm/kPa (12 MHz/Torr). We also evaluate the line sensitivity to temperature changes and electromagnetic fields.
Citation
Journal of the Optical Society of America B-Optical Physics
Volume
17
Issue
7

Keywords

acetylene, optical fiber communications, pressure broadening, pressure shift, wavelength division multiplexing, wavelength reference, wavelength standards, WDM

Citation

Swann, W. and Gilbert, S. (2000), Pressure-Induced Shift and Broadening of 1510-1540-nm Acetylene Wavelength Calibration Lines, Journal of the Optical Society of America B-Optical Physics, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=19957 (Accessed April 30, 2024)
Created June 30, 2000, Updated October 12, 2021