We fabricated various microscopic optical devices with Si photonic wire waveguides and demonstrated their fundamental characteristics. The bending loss of the waveguide was practically negligible when the bending radius of the waveguide exceeded 5 µm. Therefore, we can fabricate very compact optical devices with the waveguide. We demonstrated an optical directional coupler with the waveguide. The coupling length of the directional coupler was extremely small, several micrometers, because of strong optical coupling between the waveguide cores. We also demonstrated ultrasmall optical add/drop multiplexers (OADMs) with Bragg grating reflectors constructed from the waveguides. The dropping wavelength bandwidth of the OADM device was less than 2 nm and the dropping center wavelength could be tuned using thermooptic control with a microheater formed on the Bragg reflector. Using the Si photonic wire waveguide, we also demonstrated thermooptic switches by forming a microheater on a branch of a Mach-Zehnder interferometer made up of the waveguides. In this switching operation, we observed an extinction ratio exceeding 30 dB, a switching power less than 90 mW, and a switching response speed less than 100 µs using a 1
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Hirohito YAMADA, Tao CHU, Satomi ISHIDA, Yasuhiko ARAKAWA, "Si Photonic Wire Waveguide Devices" in IEICE TRANSACTIONS on Electronics,
vol. E90-C, no. 1, pp. 59-64, January 2007, doi: 10.1093/ietele/e90-c.1.59.
Abstract: We fabricated various microscopic optical devices with Si photonic wire waveguides and demonstrated their fundamental characteristics. The bending loss of the waveguide was practically negligible when the bending radius of the waveguide exceeded 5 µm. Therefore, we can fabricate very compact optical devices with the waveguide. We demonstrated an optical directional coupler with the waveguide. The coupling length of the directional coupler was extremely small, several micrometers, because of strong optical coupling between the waveguide cores. We also demonstrated ultrasmall optical add/drop multiplexers (OADMs) with Bragg grating reflectors constructed from the waveguides. The dropping wavelength bandwidth of the OADM device was less than 2 nm and the dropping center wavelength could be tuned using thermooptic control with a microheater formed on the Bragg reflector. Using the Si photonic wire waveguide, we also demonstrated thermooptic switches by forming a microheater on a branch of a Mach-Zehnder interferometer made up of the waveguides. In this switching operation, we observed an extinction ratio exceeding 30 dB, a switching power less than 90 mW, and a switching response speed less than 100 µs using a 1
URL: https://global.ieice.org/en_transactions/electronics/10.1093/ietele/e90-c.1.59/_p
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@ARTICLE{e90-c_1_59,
author={Hirohito YAMADA, Tao CHU, Satomi ISHIDA, Yasuhiko ARAKAWA, },
journal={IEICE TRANSACTIONS on Electronics},
title={Si Photonic Wire Waveguide Devices},
year={2007},
volume={E90-C},
number={1},
pages={59-64},
abstract={We fabricated various microscopic optical devices with Si photonic wire waveguides and demonstrated their fundamental characteristics. The bending loss of the waveguide was practically negligible when the bending radius of the waveguide exceeded 5 µm. Therefore, we can fabricate very compact optical devices with the waveguide. We demonstrated an optical directional coupler with the waveguide. The coupling length of the directional coupler was extremely small, several micrometers, because of strong optical coupling between the waveguide cores. We also demonstrated ultrasmall optical add/drop multiplexers (OADMs) with Bragg grating reflectors constructed from the waveguides. The dropping wavelength bandwidth of the OADM device was less than 2 nm and the dropping center wavelength could be tuned using thermooptic control with a microheater formed on the Bragg reflector. Using the Si photonic wire waveguide, we also demonstrated thermooptic switches by forming a microheater on a branch of a Mach-Zehnder interferometer made up of the waveguides. In this switching operation, we observed an extinction ratio exceeding 30 dB, a switching power less than 90 mW, and a switching response speed less than 100 µs using a 1
keywords={},
doi={10.1093/ietele/e90-c.1.59},
ISSN={1745-1353},
month={January},}
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TY - JOUR
TI - Si Photonic Wire Waveguide Devices
T2 - IEICE TRANSACTIONS on Electronics
SP - 59
EP - 64
AU - Hirohito YAMADA
AU - Tao CHU
AU - Satomi ISHIDA
AU - Yasuhiko ARAKAWA
PY - 2007
DO - 10.1093/ietele/e90-c.1.59
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E90-C
IS - 1
JA - IEICE TRANSACTIONS on Electronics
Y1 - January 2007
AB - We fabricated various microscopic optical devices with Si photonic wire waveguides and demonstrated their fundamental characteristics. The bending loss of the waveguide was practically negligible when the bending radius of the waveguide exceeded 5 µm. Therefore, we can fabricate very compact optical devices with the waveguide. We demonstrated an optical directional coupler with the waveguide. The coupling length of the directional coupler was extremely small, several micrometers, because of strong optical coupling between the waveguide cores. We also demonstrated ultrasmall optical add/drop multiplexers (OADMs) with Bragg grating reflectors constructed from the waveguides. The dropping wavelength bandwidth of the OADM device was less than 2 nm and the dropping center wavelength could be tuned using thermooptic control with a microheater formed on the Bragg reflector. Using the Si photonic wire waveguide, we also demonstrated thermooptic switches by forming a microheater on a branch of a Mach-Zehnder interferometer made up of the waveguides. In this switching operation, we observed an extinction ratio exceeding 30 dB, a switching power less than 90 mW, and a switching response speed less than 100 µs using a 1
ER -