Please may I ask a couple of questions.
1. What is the range of frequencies that DWDM uses. Is there a defined band of the EM spectrum where all laser/light frequencies can operate at?
2. Why do we mesaure all laser and optical light carriers as NM wavelengthsize, ie 850nn, 1310nm etc etc, and why dont we just use the term freqeuncy in Thz? After all, all other ranges within the spectrum use the primary term of frequency and not wavelength size?
Many thx indeed,
Is it the same for an optics carrier signal -The freqency and carrier waves are being generated all the time, if data is ready for transmission or not?
Yes the frequency chart you attached earlier are the DWDM frequency/wavelngth and then you modulate with data.
In Ethernet, Fast or Gig but there is no multiplexing involved as in DWDM there are many wavelngth In case of etherent only baseband signal.
For frequency for Ethernet, Fast & gig see the link
see if this is helpful too
Your link is to the "visible light" spectrum:
"A typical human eye will respond to wavelengths from about 380 to 750 nm. In terms of frequency, this corresponds to a band in the vicinity of 790-400 terahertz."
The DWDM frequencies are in the 186 - 192 THz range.
Yes frequency for a particular wavelngth in in THz but two wavelngth are 100Gh apart. Like first two wavelngth in your attachement are 1530.33 and 1529.99 in frequency they are 196THz and 195.9THz so 0.1Thz is equal to 100Ghz.
Te formula you mentioned is to calculate frequency not change in frequency you have to differentiate to get change will lat you know the formula to calculate that 100Ghz soon