XFP DWDM optics are based on the XFP form factor which is an MSA standard build. The maximum speed these optics are capable of is 11.25G and these are commonly used in 10G Ethernet. This form factor is also used for OC192 and 8x Fiber channel.
The DWDM version of this optic emits a specific light. There are different industry standards and the 100Ghz C-Band is the most used which has a spacing of 0.8nm and is around 1550nm. The channels from 17 to 61 are the most used and the best available. We can also provide the 50Ghz optics which have a spacing of 0.4nm and other spectrum bands.
Solid optics uses the channel in the naming convention which is the most convenient for our customers e.g. XFP-DWDM33-ZR
There are 2 versions of the XFP DWDM available, the first version is the ER which has a power budget of 15dB and can reach around 40km. The “stronger” version is the ZR which has a power budget of 24dB and can reach 80km. Some vendors advertise with XFP’s of 120km versions but these optics can only reach this distance with amplification. Chromatic dispersion and the power budget of the ZR limit it to 80km but this depends on the type of MUX and fiber quality.
The XFP DWDM sends out light with around 1dBm and can detect light up to -15dBm (ER) or -24dBm (ZR). The difference between this is the power budget. Technically the only difference between the ER and ZR XFP is the receiver. The laser itself is the same.
In the industry the compatibility of the XFP with the type of hardware vendor of the router/switch is important. A lot of vendors like Cisco, Juniper, Huawei, Brocade, Arista have vendor locking and spread a lot of fear in the market about 3rd Party optics. Solid Optics test all optics individually in the specific vendor to ensure there is no compatibility issue. Our test lab has a big variety of the latest generation hardware. We can also offer you our Multi-FIber-Tool which will enable you to recode your optics onsite.
The quality of the XFP DWDM is primarily determined by optical components. Solid Optics only works with Japanese Laser manufacturers. Furthermore the optics are individually tested for hardware compatibility and color stability of the laser where we use different Optical Spectrum Analyzers to ensure the optic is emitting the right color. We also send 15 minutes full 10G traffic through the optics with 15dB or 24dB of attenuation to reach the quality standard we like to aim. In the last step of our quality test we examine and take pictures of the lenses to ensure dust and scratches do not cause communication malfunctions.
Solid Optics provided complete solutions with passive mux and pluggable optics. Our standard 8 port mux is from Channel 28 to 35 and we always ensure we have the matching XFP DWDM optics in stock for these channels. We always carry a significant amount of XFP DWDM ER and ZR optics in our warehouses in Europe (the Netherlands) and the US (Los Angeles).
Solid optics can also offer a tunable XFP which is compatible for the Cisco ASR9000 and the Juniper MX series. This tuning can be done via normal CLI of the OS or we can supply you with our Multi-Fiber-Tool to re-tune your optics on site.
Please contact us for pricing, possibilities, test reports and more information about the DWDM XFP.