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

Published

July 1, 2000

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

Pub Type

Journals

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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 October 28, 2025)