Line centers, pressure shift, and pressure broadening of 1530-1560 nm hydrogen cyanide wavelength calibration lines
- Optoelectronics Division, National Institute of Standards and Technology, Boulder, Colorado 80305 (United States)
We have measured the line centers and pressure-induced shift and broadening of 25 lines in the 2{nu}{sub 3} rotational-vibrational band of hydrogen cyanide H{sup 13}C{sup 14}N. These lines can be used as wavelength references in the optical fiber communication wavelength division multiplexing C-band (approximately 1530-1565 nm). We find that the pressure shift varies with line number from +0.09 pm/kPa to -0.15 pm/kPa (approximately -1.5 to +2.5 MHz/Torr). The pressure broadening also varies with line number and is typically between 1 and 5.4 pm/kPa (17-90 MHz/Torr). We determined the line centers of 21 lines with an expanded uncertainty (2{sigma}) of 0.01 pm ({approx_equal}1 MHz), an improvement of more than 1 order of magnitude over previous line center measurements of this band. We also calculate the molecular constants for the band, yielding improved determination of the band origin frequency and the excited-state molecular constants.
- OSTI ID:
- 20696486
- Journal Information:
- Journal of the Optical Society of America. Part B, Optical Physics, Vol. 22, Issue 8; Other Information: DOI: 10.1364/JOSAB.22.001749; (c) 2005 Optical Society of America; Country of input: International Atomic Energy Agency (IAEA); ISSN 0740-3224
- Country of Publication:
- United States
- Language:
- English
Similar Records
N/sub 2/ pressure - broadened O/sub 3/ line widths and strengths near 1129. 4 cm-1
Experimental investigation of the dependences of the collision broadening and shift of the emission line of a mercury laser on He and Ne pressures