Portfolio of projects carried out at University of Limerick,

1. Optical Fibre Sensors Research Centre
PROJECT PORTFOLIO
[University of Limerick, Mar 2013]
Daniele Tosi
daniele.tosi@ul.ie
dan82ddt
www.ofsrc.ul.ie

2. About us
UL, OFSRC, Ireland
Marie Curie Fellow @ OFSRC
EU COST network
Cleveland Clinics FOS partners
EFPI 1.0 demo/licensing Italy
(w/ Pointec Ltd) FP7 University Federico II, Naples
Politecnico di Torino (PhD, MSc)
IFBG spun-out Zhejiang, China
IFBG licensing/distribution
Daniele Tosi - Optical Fibre Sensors Research Centre - project portfolio - UL2013

3. Outline
‣ Biomedical extrinsic Fabry-Perot sensors
‣ Radiation therapy dosimetry sensor
‣ Gas/pressure exhaust monitoring
‣ INFRA and Food Monitoring projects
‣ Politecnico di Torino cooperation activities
Daniele Tosi - Optical Fibre Sensors Research Centre - project portfolio - UL2013

4. EFPI system
L d
Capillary
Broadband source
Interrogator
FBG MM fiber
SM fiber
Processing
Compensation
Daniele Tosi - Optical Fibre Sensors Research Centre - project portfolio - UL2013

5. EFPI principle
Air-gap length L = L0 - Sp ΔP
FP Spectrum ~ S0 + k cos[4π(L - Sp ΔP)/λ]
Temperature: L = L0 - Sp ΔP + ST ΔT FBG
Pressure
L0 - Sp ΔP
d
Daniele Tosi - Optical Fibre Sensors Research Centre - project portfolio - UL2013

6. Development
Capillary 220 L d
Visible/NIR wavelength
SM MM
10/125 62/200 LPG integration
⍉125μm
Original build process
SM ⍉80μm
10/125
⍉40μm
SM on SM Visible wavelength
Evanescent field/SPR bio-chemical sensors
Daniele Tosi - Optical Fibre Sensors Research Centre - project portfolio - UL2013

7. Performance chart
March 2013 Next release
Size ∅ 200μm ∅125➡80➡40μm
Accuracy 0.2 mmHg 0.02 mmHg
Sensitivity 0.5 nm/kPa 1 nm/kPa
Spectrometer 5/166pm, 1 kHz 1-10pm, 5kHz
Drift To be quantified <1 mmHg/hr
Integration FBG FBG, LPG, EFS
Packaging Stent/catheters Other options
Daniele Tosi - Fiber optics Fabry-Perot interferometers for medical device applications - UL2012

8. Development
FBGA SLED
Switch Circulator
Spectrometer
166 pm resolution FBG interrogator
5 pm pixel accuracy 1 pm resolution
Max 1 kHz 2 pm accuracy
1 Hz + high speed
+ high-speed multi-laser interrogation
Daniele Tosi - Optical Fibre Sensors Research Centre - project portfolio - UL2013

9. Urodynamics
Differential pressure measurement
Interrogator
Bladder outlet obstruction (BOO) diagnostic
RFP - A novel biomedically compatible optical fibre pressure sensor for clinical diagnostic
Daniele Tosi - Optical Fibre Sensors Research Centre - project portfolio - UL2013

10. Cardiovascular
Daniele Tosi - Fiber optics Fabry-Perot interferometers for medical device applications - UL2012

11. Heart simulator
Heart simulator Spectrometer
ASE source
E FP
I sp
ectr
Heart pumping um
Fiber inlet Pres
sure
mea
s.
Sensor positioning
(short access)
Interrogator/processing
Daniele Tosi - Fiber optics Fabry-Perot interferometers for medical device applications - UL2012

12. Demo at Cleveland Clinic
Cleveland Clinic, OH, US
Mar 2013
Fluidic sensor
(reference)
Pulse generator
Accuracy 0.1 mmHg
Stability 1mmHg/hr
FPI pressure readout
Daniele Tosi - Fiber optics Fabry-Perot interferometers for medical device applications - UL2012

13. Applications
Robotic surgery
Pressure force sensors 0 to 300 mmHg
1mmHg accuracy, stability over several hours
Miniature size ⍉ 125/80/(40) μm
Intra-chranial pressure (ICP)
ICP 1 to 20 mmHg
≲0.1 mmHg accuracy, stability over minutes
Miniature size ⍉ 200/125/80 μm
Intra-aortic balloon (IAB) pumping
Pressure sensor 0 to 200 mmHg, istantaneous
1mmHg accuracy, <10mmHg stability over days
Size, form factor, redundancy, placement (⍉ 200 μm)
Daniele Tosi - Optical Fibre Sensors Research Centre - project portfolio - UL2013

14. Radiation sensor
Radiation therapy POF sensor
Monitoring of radiation levels delivered
through radiation therapy
Galway Clinic
POFgARD project
Daniele Tosi - Optical Fibre Sensors Research Centre - project portfolio - UL2013

15. Radiation sensor design
Daniele Tosi - Optical Fibre Sensors Research Centre - project portfolio - UL2013

16. Radiation measurement
Daniele Tosi - Optical Fibre Sensors Research Centre - project portfolio - UL2013

17. Gas monitoring
Daniele Tosi - Optical Fibre Sensors Research Centre - project portfolio - UL2013

18. Exhaust monitoring
Daniele Tosi - Optical Fibre Sensors Research Centre - project portfolio - UL2013

19. INFRA project
Daniele Tosi - Optical Fibre Sensors Research Centre - project portfolio - UL2013

20. Food monitoring
Colorimetry + temperature
Daniele Tosi - Optical Fibre Sensors Research Centre - project portfolio - UL2013

21. Torino, Olympic Bridge
Politecnico di Torino, Dept. of Civil Engineering + Dept. of Electronics
Daniele Tosi - Optical Fibre Sensors Research Centre - project portfolio - UL2013

22. Torino, Guarini Chapel
MEMS + POF + architectural study
Daniele Tosi - Optical Fibre Sensors Research Centre - project portfolio - UL2013

23. Venice, German Sinagogue
Daniele Tosi - Optical Fibre Sensors Research Centre - project portfolio - UL2013

24. Dallara, CRF automotive
Daniele Tosi - Optical Fibre Sensors Research Centre - project portfolio - UL2013

25. SFI Ireland/US grant
➡ Web: www.sfi.ie
➡ US-Ireland R&D partnership program
➡ Core areas: health, sensors/sensor networks (2/5)
➡ Ireland (coord.) + US + Northern Ireland
➡ 350k€ ($455k) - 3 years
Daniele Tosi - Fiber optics Fabry-Perot interferometers for medical device applications - UL2012