Abstract
We describe a systematic investigation on void structures fabricated by femtosecond laser irradiation inside dielectric materials for fabrication of a compact optical circuit. Void shapes fabricated in 5 different dielectric materials were compared and the physical constants determining the void shape were discussed. A long void array is obtainable in a material which has a low critical power for self-focusing. It was also indicated that the coefficient of thermal expansion is a dominant governing factor to fabricate a precise void which has a clear boundary. Furthermore, we propose and design a Mach-Zehnder interferometer in fused silica composed of optical waveguides and photonic crystals to verify practical application of a void array. Simulation results of the optical propagation in a Mach-Zehnder interferometer indicated that the photonic crystals using a void array have potential to fabricate compact optical circuits.
| Original language | English |
|---|---|
| Pages (from-to) | 1041-1047 |
| Number of pages | 7 |
| Journal | Applied Physics A: Materials Science and Processing |
| Volume | 100 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2010 Sep |
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ASJC Scopus subject areas
- Materials Science(all)
- Chemistry(all)
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Fabrication of a void array in dielectric materials by femtosecond laser micro-processing for compact photonic devices. / Terakawa, Mitsuhiro; Toratani, Eiji; Shirakawa, Tatsuya; Obara, Minoru.
In: Applied Physics A: Materials Science and Processing, Vol. 100, No. 4, 09.2010, p. 1041-1047.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Fabrication of a void array in dielectric materials by femtosecond laser micro-processing for compact photonic devices
AU - Terakawa, Mitsuhiro
AU - Toratani, Eiji
AU - Shirakawa, Tatsuya
AU - Obara, Minoru
PY - 2010/9
Y1 - 2010/9
N2 - We describe a systematic investigation on void structures fabricated by femtosecond laser irradiation inside dielectric materials for fabrication of a compact optical circuit. Void shapes fabricated in 5 different dielectric materials were compared and the physical constants determining the void shape were discussed. A long void array is obtainable in a material which has a low critical power for self-focusing. It was also indicated that the coefficient of thermal expansion is a dominant governing factor to fabricate a precise void which has a clear boundary. Furthermore, we propose and design a Mach-Zehnder interferometer in fused silica composed of optical waveguides and photonic crystals to verify practical application of a void array. Simulation results of the optical propagation in a Mach-Zehnder interferometer indicated that the photonic crystals using a void array have potential to fabricate compact optical circuits.
AB - We describe a systematic investigation on void structures fabricated by femtosecond laser irradiation inside dielectric materials for fabrication of a compact optical circuit. Void shapes fabricated in 5 different dielectric materials were compared and the physical constants determining the void shape were discussed. A long void array is obtainable in a material which has a low critical power for self-focusing. It was also indicated that the coefficient of thermal expansion is a dominant governing factor to fabricate a precise void which has a clear boundary. Furthermore, we propose and design a Mach-Zehnder interferometer in fused silica composed of optical waveguides and photonic crystals to verify practical application of a void array. Simulation results of the optical propagation in a Mach-Zehnder interferometer indicated that the photonic crystals using a void array have potential to fabricate compact optical circuits.
UR - http://www.scopus.com/inward/record.url?scp=84755161201&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84755161201&partnerID=8YFLogxK
U2 - 10.1007/s00339-010-5942-3
DO - 10.1007/s00339-010-5942-3
M3 - Article
AN - SCOPUS:84755161201
VL - 100
SP - 1041
EP - 1047
JO - Applied Physics
JF - Applied Physics
SN - 0340-3793
IS - 4
ER -