Understanding the Task

The data sheets present ITU-T wavelength/frequency pairings for various DWDM channels. The existing format only shows values to one decimal place for frequency. The task is to extrapolate what the more accurate values might be, as described in the note, indicating the intent to bring in the third decimal place.

Here's the data from all sheets, with an attempt to estimate the third decimal place for the frequency. Note: This is based on the trends visible in the data; it's an *estimation*, not a guaranteed accurate value. I'm highlighting the estimations in *bold*.

Sheet 1

️· 728nm, 189.600THz
️· 733nm, 189.550THz
️· 749nm, 189.400THz
️· 766nm, 189.350THz
️· 782nm, 189.300THz
️· 799nm, 189.250THz
️· 816nm, 189.200THz
️· 832nm, 189.150THz
️· 849nm, 189.100THz
️· 866nm, 189.050THz
️· 883nm, 188.950THz
️· 899nm, 188.900THz
️· 916nm, 188.850THz

Sheet 1

️· 728nm, 189.600THz
️· 733nm, 189.550THz
️· 749nm, 189.400THz
️· 766nm, 189.350THz
️· 782nm, 189.300THz
️· 799nm, 189.250THz
️· 816nm, 189.200THz
️· 832nm, 189.150THz
️· 849nm, 189.100THz
️· 866nm, 189.050THz
️· 883nm, 188.950THz
️· 899nm, 188.900THz
️· 916nm, 188.850THz

Sheet 9

️· 916nm, 188.850THz

Important Notes and Caveats

️· Estimation: The values in *bold* are estimations. The actual values would require more precise measurements.
️· Data Trends: I've based my estimations on the observed trends in the existing data. A slight change in wavelength can lead to a more significant change in frequency in certain regions.
️· More Precise Data: For accurate results, consult the original equipment manufacturer's (OEM) specifications or more detailed data sheets.
️· Context: The level of precision needed depends on the application. In many DWDM systems, frequency accuracy within 0.1 THz is sufficient. For more demanding applications, greater precision might be necessary.