Hello, I see you have several DWDM products - all are 100 GHz spaced with monitor port, at various prices. The only difference seems to be the Insertion Loss. Is this correct, or are there any other differences between the items? Why are the insertion losses different? Also, does this unit (or other similar units) require any temperature control? What is the stability of the grid when the environment temperature changes? Thanks
by A***l on 04/10/2022
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Hi Adam, As for your questions, I take the following three products as examples: 40 Channels 100GHz C21-C60, with 1310nm and Monitor Port, 3.5dB Typical IL, LC/UPC, Dual Fiber DWDM Mux Demux, 1U Rack Mount #35887 40 Channels 100GHz C21-C60, with Monitor Port, 3.0dB Typical IL, LC/UPC, Dual Fiber DWDM Mux Demux, 1U Rack Mount #33485 40 Channels 100GHz C21-C60, with 1310nm Port and Monitor Port, LC/UPC, Dual Fiber DWDM Mux Demux, 1U Rack Mount #84492 Differences between these products: application technology and special access ports. #33485 does not have a 1310nm channel port, and the other two products have a 1310nm channel port. Products with more special channel ports will have a higher insertion loss. #84492 uses Gaussian AAWG technology, while #35887 and #33485 use Flat-top AAWG technology. In comparison, Gaussian loss is lower. These products all use AAWG technology and adopt special design and technology on the chip structure of AWG so that the wavelength does not change with the change of external temperature. We do not need to use any heating device and control circuit - athermal AWG (Athermal AWG). Hope it helps. by FS.com on 06/10/2022
