Acknowledgements

Except for third party materials and otherwise stated (see terms and conditions [Tip: hold Ctrl and click a link to open it in a new tab. (Hide tip)] ), this content is made available under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence

Course image: Kohei314 in Flickr made available under Creative Commons Attribution-NonCommercial-ShareAlike 2.0 Licence.

Grateful acknowledgement is made to the following source for permission to reproduce material within this unit:

Table 5: 'Nominal central wavelengths for CWDM’, ITU-T G.694.2 Prepublished Recommendation: Spectral Grids for WDM Applications: CWDM wavelength grid, International Telecommunication Union;

Table 6: 'Nominal central frequencies of the DWDM grid’, ITU-T G.691.1 Prepublished Recommendation: Spectral Grids for WDM Applications: DWDM frequency grid, International Telecommunication Union.

All other written material contained within this unit originated at the Open University

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