The fuction of AWG?
663 2023-04-10
AWG (Arrayed Waveguide Grating) is the preferred technology in Dense Wavelength Division Multiplexing (DWDM). A grating formed by a group of arrayed waveguides with equal length differences has the ability to split waves.
We can simply understand AWG as the packaging and transportation technology in the current fast-growing express delivery industry. At the same mailing location, when the courier collects different packages from each person, he will sort them out and send them to the same direction. The parcels are grouped into one category, transported to the destination in a unified manner, and then distributed to the recipients. In the process of transportation, we may subdivide the size of the package to maximize the utilization of the transportation space. If there is more space, we can also receive new packages and add them in the middle. It is a process of combining and dividing. , This is the basic function of AWG, just like the courier company can artificially control which packages are distributed and received in which direction and where.
Development of multi-channel AWG. The development of multi-channel AWG devices makes full use of the huge bandwidth of optical fibers, more effectively realizes the expansion of optical fiber communication systems, and meets people‘s ever-growing communication needs.
The basic function of the AWG is wavelength multiplexing/separation, which can realize wavelength multiplexing/demultiplexing, insertion/division multiplexing, wavelength routing, etc. By combining with an optical switch, wavelength selection is possible. AWG can also be combined with multi-wavelength lasers to form a multi-wavelength light source.
① Multiplexer/Demultiplexer
②Wavelength router
③ Optical Add-Drop Multiplexer
④Multi-wavelength light source
⑤ Optical Wavelength Selector (OWS)
⑥Multi-wavelength receiver
⑦Multi-channel equalizer