1. electronic department FE2008 - 3 April 2008 - M.J. van der Hoek Mar van der Hoek Photonic Technologies for Future VLVnT Photonic (Sensor) Technologies for Future Very Large Volume Neutrino Telescopes Mar van der Hoek Nikhef- the National institute for subatomic physics / www.nikhef.nl VanderHoekPhotonics / www.vanderhoekphotonics.com

2. electronic department FE2008 - 3 April 2008 - M.J. van der Hoek Mar van der Hoek Photonic Technologies for Future VLVnT  Optical Fibre as distributed sensor  Photonic sensors for distributed sensing of strain and temperature  Photonic sensors for chemical parameters  Novel type of fibres enabling advanced sensing principles  Implementation of photonic sensors in KM3NeT  Distributed sensors for Sea bed monitoring  Conclusions Outline of the Presentation

3. electronic department FE2008 - 3 April 2008 - M.J. van der Hoek Mar van der Hoek Photonic Technologies for Future VLVnT Fibre Based Telecom versus Fibre Based Sensors

4. electronic department FE2008 - 3 April 2008 - M.J. van der Hoek Mar van der Hoek Photonic Technologies for Future VLVnT Light source Detector Photonic Sensor- basic configuration for point sensing

5. electronic department FE2008 - 3 April 2008 - M.J. van der Hoek Mar van der Hoek Photonic Technologies for Future VLVnT Fibre Bragg Gratings- spectrally encoded sensors

6. electronic department FE2008 - 3 April 2008 - M.J. van der Hoek Mar van der Hoek Photonic Technologies for Future VLVnT Fibre acts as a ‘integral distributed sensor’ Photonic Sensor- integral distributed sensing

7. electronic department FE2008 - 3 April 2008 - M.J. van der Hoek Mar van der Hoek Photonic Technologies for Future VLVnT Detector Switch/ splitter Photonic Sensor- spatial resolved distributed sensing OPT. POWER TIME

8. electronic department FE2008 - 3 April 2008 - M.J. van der Hoek Mar van der Hoek Photonic Technologies for Future VLVnT Strain and Temperature Induced Effects on Backscattered Light

9. electronic department FE2008 - 3 April 2008 - M.J. van der Hoek Mar van der Hoek Photonic Technologies for Future VLVnT Optical Fibre-based Distributed Strain Sensing

10. electronic department FE2008 - 3 April 2008 - M.J. van der Hoek Mar van der Hoek Photonic Technologies for Future VLVnT Optical Fibre as Distributed Strain Sensor in VLVnTs COMPRESSION STRAIN

11. electronic department FE2008 - 3 April 2008 - M.J. van der Hoek Mar van der Hoek Photonic Technologies for Future VLVnT Optical Fibre as Distributed Temperature Sensor in VLVnTs TEMPERATURE

12. electronic department FE2008 - 3 April 2008 - M.J. van der Hoek Mar van der Hoek Photonic Technologies for Future VLVnT Optical Fibre as Distributed Chemical sensor

13. electronic department FE2008 - 3 April 2008 - M.J. van der Hoek Mar van der Hoek Photonic Technologies for Future VLVnT Microstructured Optical Fibres : Enabling Novel Sensing Concepts Gas-or liquid flow through holes for Chemical sensing!

14. electronic department FE2008 - 3 April 2008 - M.J. van der Hoek Mar van der Hoek Photonic Technologies for Future VLVnT Photonic Sensing in KM3NeT  Optimization of string deployment techniques  Measurement of strain in electro-optic cable  Measurement of strain in vertical strings  Detection of vertical temperature gradient along strings  Sensors for associated sciences  Distributed detection of chemical parameters  And so on… Applications

15. electronic department FE2008 - 3 April 2008 - M.J. van der Hoek Mar van der Hoek Photonic Technologies for Future VLVnT Fibre-based sensor cable, embedded in trench or spot-fixed to sea bed Photonic Sensing of seabed- plate tectonics

16. electronic department FE2008 - 3 April 2008 - M.J. van der Hoek Mar van der Hoek Photonic Technologies for Future VLVnT …a Happy Marriage between Telecoms and Sensors…