Process: Make Photonics - Constriction Transducer starting 2013-05-10 ending 2013-05-10

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Outputs

Scheduled:

Prototype Material - Constriction transducer 3.00 Each due May 10, 2013

Work

Planned Work: (Requirements are ordered by due date)

Work - R&D optics: 1.00 Time - Hours due May 10, 2013

Worked with Francois on exploring the constriction transducer with the LED 850nm Mosquito.
See report
https://docs.google.com/document/d/1aAjJoOfv3M1zt1lPsye8TAxtrE_dlt8lXVRBzGoWAf0/edit#

May 22
Worked on the constriction again. I made some experiments to distinguish between my model and Frederic's model of the constriction transducer.
My model: some light get's transferred into the cladding at the constriction site and after some travel comes back in the core. As it does that, it interferes with the light that continued into the core and the detector sees this interference pattern. I thought that if I coat the entire constricted area and the lever with silver I would increase the sensitivity of the transducer, because more light would come back into the core.
I made 3 transducers, one with 4 constrictions, one with 2 constrictions and the one with a single constriction. The first two I constricted approx 30%, the last one approx 50%. I connected them to the Chinese LD Mosquito that came back from Phil.
Through the fluctuations of this Mosquito, because we understand its defaults, I could measure some sensitivity for the 4 constrictions transducer, but not good enough for the other ones. The Mosquito behaves in a strange/unpredictable way.
I used the reusable optical fiber connectors to connect the fiber.
In conclusion, it seems that my theory about the mechanism behind the constriction transducer is not the one I thought.
Pictures and videos were made.

Taken by Tibi
Work events:
May 22, 2013 2.00 Time - Hours Done by Tibi

Worked with Francois on exploring the constriction transducer with the LED 850nm Mosquito.
See report
https://docs.google.com/document/d/1aAjJoOfv3M1zt1lPsye8TAxtrE_dlt8lXVRBzGoWAf0/edit#

May 22
Worked on the constriction again. I made some experiments to distinguish between my model and Frederic's model of the constriction transducer.
My model: some light get's transferred into the cladding at the constriction site and after some travel comes back in the core. As it does that, it interferes with the light that continued into the core and the detector sees this interference pattern. I thought that if I coat the entire constricted area and the lever with silver I would increase the sensitivity of the transducer, because more light would come back into the core.
I made 3 transducers, one with 4 constrictions, one with 2 constrictions and the one with a single constriction. The first two I constricted approx 30%, the last one approx 50%. I connected them to the Chinese LD Mosquito that came back from Phil.
Through the fluctuations of this Mosquito, because we understand its defaults, I could measure some sensitivity for the 4 constrictions transducer, but not good enough for the other ones. The Mosquito behaves in a strange/unpredictable way.
I used the reusable optical fiber connectors to connect the fiber.
In conclusion, it seems that my theory about the mechanism behind the constriction transducer is not the one I thought.
Pictures and videos were made.

May 10, 2013 4.00 Time - Hours Done by Tibi

Worked with Francois on exploring the constriction transducer with the LED 850nm Mosquito.
See report
https://docs.google.com/document/d/1aAjJoOfv3M1zt1lPsye8TAxtrE_dlt8lXVRBzGoWAf0/edit#

May 10, 2013 2.00 Time - Hours Done by Tibi

Worked with Francois on exploring the constriction transducer with the LED 850nm Mosquito.
See report
https://docs.google.com/document/d/1aAjJoOfv3M1zt1lPsye8TAxtrE_dlt8lXVRBzGoWAf0/edit#

Citations

R&D report
Onhand: Glass fiber constriction transducer - fabrication
Cited: 1.00 Idea Aug. 12, 2014
Wet coating
Onhand: Chemical-wet coating - shaking
Cited: 1.00 Idea May 12, 2013

Consumable Inputs

Consumable - Optical fiber: 1.00 Length - Meter due May 10, 2013

used it to for the constriction

Onhand: 125/63.5 MM glass Corning Infinicor 300 ~ 18.08 Length - Meter
Consumed: 1.20 Length - Meter May 10, 2013 by SENSORICA
Onhand: PMMA 0.25 mm SK ~ 95.85 Length - Meter
Onhand: PMMA 0.5 mm SK ~ 97.88 Length - Meter
Onhand: PMMA 1mm CK ~ 19.49 Length - Meter

Usable Inputs

Equipment - Microscope : 2.00 Time - Hours due May 10, 2013

used it to observe the fibers and to take pictures

Onhand: Confocal Dilson's 1.00 Each
Onhand: Confocal Phil's 1.00 Each
Onhand: Inverted Phil 1.00 Each
Onhand: Microscope inverted Dilson 4.00 Each
Onhand: Stereo microscope - large Phil 1.00 Each
Onhand: Stereo microscope - large SENSORICA 1.00 Each
Used: Stereo microscope - large SENSORICA 4.00 Time - Hours May 10, 2013 by SENSORICA
Onhand: Stereo microscope - small SENSORICA 1.00 Each
Used: Stereo microscope - small SENSORICA 2.00 Time - Hours May 22, 2013 by SENSORICA
Equipment - Optical fiber splicer: 2.00 Time - Hours due May 10, 2013

Used to melt the fiber to pull the fiber to make the constriction.

Onhand: Field Fiber Splicer 2.00 Each
Used: Field Fiber Splicer 4.00 Time - Hours May 10, 2013 by SENSORICA
Equipment - Camera photo/video: 2.00 Time - Hours due May 10, 2013

Needed it on top of the Microscope to take videos and pictures for measurements and documentation.

Onhand: Celestron microscope USB camera 1.00 Each
Used: Celestron microscope USB camera 2.00 Time - Hours May 22, 2013 by SENSORICA
Onhand: HP webcam 1.00 Each
Onhand: Logitech HD webcam 1 1.00 Each
Onhand: Logitech low def. 1.00 Each
Onhand: Phil's CCD 1.00 Each
Onhand: Video camera 99%media 2.00 Each
Power supply: 2.00 Time - Hours due May 10, 2013

used it to power the Micro Splicer for the constriction

Onhand: Hantek power supply USB 1.00 Each
Onhand: Power supply GQ 1.00 Each
Used: Power supply GQ 4.00 Time - Hours May 10, 2013 by SENSORICA
Onhand: POWER SUPPLY WALL 24V 1A 3.00 Each
Prototype Material - Mosquito LD (laser) sensor : 2.00 Time - Hours due May 10, 2013

used the mosquito to explore the constriction transducer.

Onhand: Prototype - Mosquito V3 Chinese parts 1.00 Each
Used: Prototype - Mosquito V3 Chinese parts 2.00 Each May 22, 2013 by SENSORICA

Unplanned Use:

Process context:

Pattern: Generic R&D
Context: Mosquito
Order: Work order 67 , Make Photonics - Constriction Transducer due: 2013-05-10

Previous processes:

Create Prototype - Mosquito V3 Chinese parts starting 2013-02-03 ending 2013-02-03

Next processes:


Process notes:

Optimize the constriction transducer form the LED 850nm Mosquito