10 Gigabit Ethernet form types finally merging

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As 10 Gigabit Ethernet lasers have grown the different formats have more or less started to compete against each others. The first types of 10 Gigabit Ethernet lasers were used in FIXED formats later on as Xpak. The difficulties factories had were that higher bit rate created both heat and higher light disfraction. The method used to face those problems were large cooling plates and dividing up the laser into small channels. That is the technology used for Xenpak and X2. Those form factors were successful in providing 10 Gigabit Ethernet.

When the XFP started to work . Those used a different approach to cooling and to the disfraction problem and managed to solve these issues in one single channel. That meant cheaper long term production. That resulted in that all the SFP factories around the world needed something to build on so that their market share would not be diminished by the XFP factories. So the sfp+ form type were created.

For users all these form types providing the same service that is a problematic situation where users need to have backup reserves in stock to assure that they have all types available.

For a while there have been adapters available in the market where you may use a Xenpak slot and put in a sfp+. In the beginning these did have some early adaption problems. The early problems of these were for example the diagnostic features of the lasers were not sent on properly. And/or the adapters would not accept C/DWDM lasers that worked on different power requirements.

However it seems that they are now getting to be a real solution in order to diminish the variety of form types available. Nowadays we recommend all clients to look on all 10 Gig Ethernet modules and make sure you try to implement either XFP or SFP+. If you need to use Xenpaks or X2 try to use adapters so that these can easily be interchanged.

If interested in Swelaser’s version of these here are our part numbers:

SWL Xenpak->SFP10G


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