Light reflections Blog

Multimode fibre types

OMG! What’s happening to multimode fibre?

Most of us are familiar with the OMn labels that we use to talk about the different performance grades of multimode fibre. But things are changing! It’s time to finally say goodbye to some old faithfuls and time to introduce the new kid on the block, because it looks as though he might be staying around a while…

Finisar 100G 4x28G Metro Tunable DWDM 30km (500km+ Amplified) CFP Optical Transceiver

Is 25G really more than 10G?

The new style of 100G CFP pluggable optics module builds on the 2nd Generation 100G Ethernet standard that was published in 2015 and uses four pairs of singlemode fibres each transmitting 25Gb/s of data using tuneable lasers in the C-band. This is an interesting halfway house between 10G wavelengths and the very expensive coherent 100G solutions using DP-QPSK. Because the module has no electronic dispersion compensation then it is necessary to do the dispersion compensation optically.

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Summer updates

Health update The main event in the treatment of my Myeloma is now completed, with high dose chemotherapy followed by my stem cell transplant carried out at St. James Hospital in Leeds at the...

Stem cell harvesting

Stem cell transplant March/April 2015

It is now been more than a year since my diagnosis with myeloma. I am scheduled to be admitted to Saint James’s Hospital in Leeds on Tuesday 24th March for a stem cell transplant.