Recent content by cambridgejohn

ok. it all makes sense now. just needed to run through some numeric examples using the speed of light to get numbers. thanks again for your help.

Thanks. The error concept part helps. I can understand when a wavelength is being measured a higher resolution helps out, and that one needs to only buy an OSA which will discern a certain wavelength spectra. And I can understand how the difference part makes sense for the wavelength. What...

Hi! I am new to these, and off the bat am confused by the units. Manufacturers quote resolution either in units of length, e.g. 0.04 nm, or HZ. For example, 0.04 pm / 5MHz 0.16 pm / 20 MHz 0.8 pm / 100 MHz. I am thrown by this since I thought frequency was the inverse of...