Parallel drawing of multiple bent optical waveguides using a spatial light modulator
Parallel drawing of multiple bent optical waveguides using a spatial light modulator
Multiple optical waveguides inside glass were drawn in parallel using multiple light spots, which were formed by focusing a spatially phase-modulated femtosecond laser pulse. Because the spatial phase distribution was modulated by a computer-generated hologram (CGH) on a liquid-crystal spatial light modulator (SLM), bent structures were formed in the drawn waveguides by changing the positions of the light spots by switching the CGHs when the waveguides were being drawn. We confirmed that a He–Ne laser beam can be guided through the fabricated waveguides, and we found that the propagation loss of the waveguides was determined by both the steps for changing the beam position and the number of times the CGHs were switched. We also explain the method we used to reduce the time required to calculate the CGHs used to create bent waveguides.
Sakakura, Masaaki
3bb15bbd-d590-4cba-ab5a-862dc7acd054
Sawano, Tsutomu
ef13b45f-7351-441d-8097-2faa6933c25c
Shimotsuma, Yasuhiko
0664279b-def2-41d4-a5ec-207ce02013a7
Miura, Kiyotaka
5dbc9159-ace0-4dd9-b18d-36f87ae78c47
Hirao, Kazuyuki
5cc5061d-6217-49ae-bc92-ff5b72b9c6c2
December 2009
Sakakura, Masaaki
3bb15bbd-d590-4cba-ab5a-862dc7acd054
Sawano, Tsutomu
ef13b45f-7351-441d-8097-2faa6933c25c
Shimotsuma, Yasuhiko
0664279b-def2-41d4-a5ec-207ce02013a7
Miura, Kiyotaka
5dbc9159-ace0-4dd9-b18d-36f87ae78c47
Hirao, Kazuyuki
5cc5061d-6217-49ae-bc92-ff5b72b9c6c2
Sakakura, Masaaki, Sawano, Tsutomu, Shimotsuma, Yasuhiko, Miura, Kiyotaka and Hirao, Kazuyuki
(2009)
Parallel drawing of multiple bent optical waveguides using a spatial light modulator.
Japanese Journal of Applied Physics, 48 (12).
(doi:10.1143/JJAP.48.126507).
Abstract
Multiple optical waveguides inside glass were drawn in parallel using multiple light spots, which were formed by focusing a spatially phase-modulated femtosecond laser pulse. Because the spatial phase distribution was modulated by a computer-generated hologram (CGH) on a liquid-crystal spatial light modulator (SLM), bent structures were formed in the drawn waveguides by changing the positions of the light spots by switching the CGHs when the waveguides were being drawn. We confirmed that a He–Ne laser beam can be guided through the fabricated waveguides, and we found that the propagation loss of the waveguides was determined by both the steps for changing the beam position and the number of times the CGHs were switched. We also explain the method we used to reduce the time required to calculate the CGHs used to create bent waveguides.
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Published date: December 2009
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No Southampton authors at time of publication
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Local EPrints ID: 431166
URI: http://eprints.soton.ac.uk/id/eprint/431166
ISSN: 0021-4922
PURE UUID: 665ef1ec-6203-4f84-8ad0-77a6b20ec531
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Date deposited: 24 May 2019 16:30
Last modified: 16 Mar 2024 01:56
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Contributors
Author:
Masaaki Sakakura
Author:
Tsutomu Sawano
Author:
Yasuhiko Shimotsuma
Author:
Kiyotaka Miura
Author:
Kazuyuki Hirao
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