I want to give an office worker a job of building a catalog of DWDM parts that express their channel as a frequency (Terahertz) rather than wavelength (Nanometer). I'm looking for an Excel formula that would help us to convert from frequency to wavelength. Is it available somewhere?
The calculation to make this conversion isn't brain surgery, but I gather to do it accurately it is several steps and requires some care, and it's probably beyond what I would want to hand off to an office worker, even a fairly smart one. So, I'm hoping it is shrinkwrapped somewhere.