Improving the functionality of a laser writing system using software
Improving the functionality of a laser writing system using software
Laser writing is a method of fabricating ‘pipes’ inside glass that confine light, known as optical waveguides. This confinement allows interactions between individual photons to be controlled, an important feature for quantum optics experiments. For such experiments, the total optical loss in the system should be below 1.7dB[1]; minimising the total loss in these structures is very important for scalability. Waveguides can be created by translating a photosensitive glass sample under a focussed laser at a precise speed. 2D structures allow spatial control of how photons interact. Additionally periodic structures known as Bragg gratings cause light within a narrow predefined wavelength range to be reflected, allowing filtering and trapping of light.
Creating devices of a high enough standard to be useful requires a great deal of computational control. Currently this consists of a PC uploading code to an FPGA, which is connected to an air-bearing stage, which moves samples through a fixed laser beam. Complex coordinate transforms are difficult to implement and test in the current system due its use of AeroBasic (a CNC language modified from G-Code); as a result this work follows an upgrade to control the system using a custom library written in C++.
Field, James
df955b32-3fe1-4aca-866f-95603a4c70f7
Berry, Sam
0f768f48-36c4-4599-8917-7aae657378a7
Smith, Devin
49156a41-41f1-4f1b-8ce3-ef6f894e190c
Gates, James
b71e31a1-8caa-477e-8556-b64f6cae0dc2
Smith, Peter
8979668a-8b7a-4838-9a74-1a7cfc6665f6
3 September 2018
Field, James
df955b32-3fe1-4aca-866f-95603a4c70f7
Berry, Sam
0f768f48-36c4-4599-8917-7aae657378a7
Smith, Devin
49156a41-41f1-4f1b-8ce3-ef6f894e190c
Gates, James
b71e31a1-8caa-477e-8556-b64f6cae0dc2
Smith, Peter
8979668a-8b7a-4838-9a74-1a7cfc6665f6
Field, James, Berry, Sam, Smith, Devin, Gates, James and Smith, Peter
(2018)
Improving the functionality of a laser writing system using software.
Research Software Engineers Conference, Birmingham, United Kingdom.
03 - 04 Sep 2018.
Record type:
Conference or Workshop Item
(Poster)
Abstract
Laser writing is a method of fabricating ‘pipes’ inside glass that confine light, known as optical waveguides. This confinement allows interactions between individual photons to be controlled, an important feature for quantum optics experiments. For such experiments, the total optical loss in the system should be below 1.7dB[1]; minimising the total loss in these structures is very important for scalability. Waveguides can be created by translating a photosensitive glass sample under a focussed laser at a precise speed. 2D structures allow spatial control of how photons interact. Additionally periodic structures known as Bragg gratings cause light within a narrow predefined wavelength range to be reflected, allowing filtering and trapping of light.
Creating devices of a high enough standard to be useful requires a great deal of computational control. Currently this consists of a PC uploading code to an FPGA, which is connected to an air-bearing stage, which moves samples through a fixed laser beam. Complex coordinate transforms are difficult to implement and test in the current system due its use of AeroBasic (a CNC language modified from G-Code); as a result this work follows an upgrade to control the system using a custom library written in C++.
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Published date: 3 September 2018
Venue - Dates:
Research Software Engineers Conference, Birmingham, United Kingdom, 2018-09-03 - 2018-09-04
Identifiers
Local EPrints ID: 428206
URI: https://eprints.soton.ac.uk/id/eprint/428206
PURE UUID: 8a283c7d-9b5d-44f9-ae63-91803e581a39
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Date deposited: 15 Feb 2019 17:30
Last modified: 14 Mar 2019 01:47
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Contributors
Author:
Devin Smith
University divisions
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