Polarization beam splitter with different core widths and its application to dual-polarization optical hybrid

Yasuaki Hashizume; Takashi Goh; Yasuyuki Inoue; Kiichi Hamamoto; Mikitaka Itoh

doi:10.1109/JLT.2014.2387200

Polarization beam splitter with different core widths and its application to dual-polarization optical hybrid

Yasuaki Hashizume, Takashi Goh, Yasuyuki Inoue, Kiichi Hamamoto, Mikitaka Itoh

Electrical Engineering Sciences

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

We investigated the core-width dependence of the birefringence of silica-based waveguides with different relative refractive index differences (Δ), namely a 0.75%-Δ GeO₂-doped waveguide and a 5%-Δ Ta₂O₅-doped waveguide. We revealed that the birefringence of the 0.75%-Δ GeO₂-doped waveguide is almost the same as the stress-induced birefringence and that the 5%-Δ Ta₂O₅-doped waveguide has a large geometrical birefringence. By utilizing the core-width dependence of the birefringence, we have successfully demonstrated a 0.75%-Δ polarization beam splitter (PBS) with an operating wavelength range of more than 150 nm and a dual-polarization optical hybrid including a compact 5%-Δ PBS with a polarization extinction ratio of more than 20 dB over the C-band.

Original language	English
Article number	7005394
Pages (from-to)	408-414
Number of pages	7
Journal	Journal of Lightwave Technology
Volume	33
Issue number	2
DOIs	https://doi.org/10.1109/JLT.2014.2387200
Publication status	Published - Jan 15 2015

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics

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10.1109/JLT.2014.2387200

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title = "Polarization beam splitter with different core widths and its application to dual-polarization optical hybrid",

abstract = "We investigated the core-width dependence of the birefringence of silica-based waveguides with different relative refractive index differences (Δ), namely a 0.75%-Δ GeO2-doped waveguide and a 5%-Δ Ta2O5-doped waveguide. We revealed that the birefringence of the 0.75%-Δ GeO2-doped waveguide is almost the same as the stress-induced birefringence and that the 5%-Δ Ta2O5-doped waveguide has a large geometrical birefringence. By utilizing the core-width dependence of the birefringence, we have successfully demonstrated a 0.75%-Δ polarization beam splitter (PBS) with an operating wavelength range of more than 150 nm and a dual-polarization optical hybrid including a compact 5%-Δ PBS with a polarization extinction ratio of more than 20 dB over the C-band.",

author = "Yasuaki Hashizume and Takashi Goh and Yasuyuki Inoue and Kiichi Hamamoto and Mikitaka Itoh",

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T1 - Polarization beam splitter with different core widths and its application to dual-polarization optical hybrid

AU - Hashizume, Yasuaki

AU - Goh, Takashi

AU - Inoue, Yasuyuki

AU - Hamamoto, Kiichi

AU - Itoh, Mikitaka

PY - 2015/1/15

Y1 - 2015/1/15

N2 - We investigated the core-width dependence of the birefringence of silica-based waveguides with different relative refractive index differences (Δ), namely a 0.75%-Δ GeO2-doped waveguide and a 5%-Δ Ta2O5-doped waveguide. We revealed that the birefringence of the 0.75%-Δ GeO2-doped waveguide is almost the same as the stress-induced birefringence and that the 5%-Δ Ta2O5-doped waveguide has a large geometrical birefringence. By utilizing the core-width dependence of the birefringence, we have successfully demonstrated a 0.75%-Δ polarization beam splitter (PBS) with an operating wavelength range of more than 150 nm and a dual-polarization optical hybrid including a compact 5%-Δ PBS with a polarization extinction ratio of more than 20 dB over the C-band.

AB - We investigated the core-width dependence of the birefringence of silica-based waveguides with different relative refractive index differences (Δ), namely a 0.75%-Δ GeO2-doped waveguide and a 5%-Δ Ta2O5-doped waveguide. We revealed that the birefringence of the 0.75%-Δ GeO2-doped waveguide is almost the same as the stress-induced birefringence and that the 5%-Δ Ta2O5-doped waveguide has a large geometrical birefringence. By utilizing the core-width dependence of the birefringence, we have successfully demonstrated a 0.75%-Δ polarization beam splitter (PBS) with an operating wavelength range of more than 150 nm and a dual-polarization optical hybrid including a compact 5%-Δ PBS with a polarization extinction ratio of more than 20 dB over the C-band.

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Polarization beam splitter with different core widths and its application to dual-polarization optical hybrid

Abstract

All Science Journal Classification (ASJC) codes

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