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Research Output

2020

Coupled Mode Characteristics From the Perturbation of 3D Printed Long-Period Fiber Grating Devices

Khun-In, R., Usuda, Y., Jiraraksopakun, Y., Bhatranand, A. & Yokoi, H., 2020 Jan 1, (Accepted/In press) In : Photonic Sensors. 10, 3, p. 195-203 9 p.

Research output: Contribution to journalArticle

Open Access

Optical Communication and Positioning Method of Underwater Observation Apparatus for Environmental Monitor

Enomoto, E., Rajagopalan, U., Lee, S. Y., Zhang, X., Koike, Y., Yokoi, H., Nishikawa, H., Nagasawa, S., Futai, N., Kohno, T., Yamada, J., Shimojo, M. & Matsuo, S., 2020 Jan, 2020 10th Annual Computing and Communication Workshop and Conference, CCWC 2020. Chakrabarti, S. & Paul, R. (eds.). Institute of Electrical and Electronics Engineers Inc., p. 784-788 5 p. 9031130. (2020 10th Annual Computing and Communication Workshop and Conference, CCWC 2020).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2019

Simultaneous perturbation of 3d printed long-period fiber grating devices for controllable resonant wavelengths

Khun-In, R., Takagi, M., Usuda, Y., Bhatranand, A. & Yokoi, H., 2019, Optical Sensors, Sensors 2019. OSA - The Optical Society, (Optics InfoBase Conference Papers; vol. Part F166-Sensors 2019).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

The Study of Coupled-Mode Characteristics from Resonant Wavelengths Inside Fiber Grating Structure

Khun-In, R., Usuda, Y., Bhatranand, A. & Yokoi, H., 2019 Jul 1, 19th International Conference on Numerical Simulation of Optoelectronic Devices, NUSOD 2019. Hinzer, K. & Piprek, J. (eds.). IEEE Computer Society, p. 23-24 2 p. 8806801. (Proceedings of the International Conference on Numerical Simulation of Optoelectronic Devices, NUSOD; vol. 2019-July).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2018

Fabrication processes of soi structure for optical nonreciprocal devices

Choowitsakunlert, S., Takagiwa, K., Kobashigawa, T., Hosoya, N., Silapunt, R. & Yokoi, H., 2018 Jan 1, Advanced Materials and Engineering Materials VII. Wei, P. S. (ed.). Trans Tech Publications Ltd, p. 107-112 6 p. (Key Engineering Materials; vol. 777 KEM).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Magneto-optic waveguide in optical isolator employing nonreciprocal guided-radiation mode conversion for athermal operation

Choowitsakunlert, S., Silapunt, R. & Yokoi, H., 2018 Jan 1, Bragg Gratings, Photosensitivity and Poling in Glass Waveguides and Materials, BGPPM 2018. OSA - The Optical Society, (Optics InfoBase Conference Papers; vol. Part F98-BGPPM 2018).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Photosensitive adhesive bonding process of magnetooptic waveguides with Si guiding layer for optical nonreciprocal devices

Choowitsakunlert, S., Takagiwa, K., Kobashigawa, T., Hosoya, N., Silapunt, R. & Yokoi, H., 2018 May 1, In : Japanese Journal of Applied Physics. 57, 5, 058007.

Research output: Contribution to journalArticle

Resonant wavelength observation by 3D printed mechanically induced long-period fiber grating device

Khun-In, R., Takagi, M., Nanjo, K., Jiraraksopakun, Y., Bhatranand, A. & Yokoi, H., 2018 Jan 1, Bragg Gratings, Photosensitivity and Poling in Glass Waveguides and Materials, BGPPM 2018. OSA - The Optical Society, Vol. Part F98-BGPPM 2018.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Temperature-insensitive design of waveguide isolator employing nonreciprocal guided-radiation mode conversion

Choowitsakunlert, S., Kobashigawa, T., Hosoya, N., Silapunt, R. & Yokoi, H., 2018 Nov, In : Japanese Journal of Applied Physics. 57, 11, 112201.

Research output: Contribution to journalArticle

1 Citation (Scopus)
2017

A 1D study of antiferromagnetic operated on multiferroic composites in nano read head

Choowitsakunlert, S., Silapunt, R. & Yokoi, H., 2017 Mar 2, (Accepted/In press) In : Microsystem Technologies. p. 1-5 5 p.

Research output: Contribution to journalArticle

Amorphous-Si waveguide on a garnet magneto-optical isolator with a TE mode nonreciprocal phase shift

Ishida, E., Miura, K., Shoji, Y., Yokoi, H., Mizumoto, T., Nishiyama, N. & Arai, S., 2017 Jan 9, In : Optics Express. 25, 1, p. 452-462 11 p.

Research output: Contribution to journalArticle

17 Citations (Scopus)

Athermal condition of magneto-optic waveguides in optical isolator employing nonreciprocal guided-radiation mode conversion

Choowitsakunlert, S., Takagiwa, K., Silapunt, R. & Yokoi, H., 2017 Jan 1, Conference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2017. OSA - The Optical Society, Vol. Part F122-CLEOPR 2017. s1187

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Athermal condition of magneto-optic waveguides in optical isolator employing nonreciprocal guided- radiation mode conversion

Choowitsakunlert, S., Takagiwa, K., Silapunt, R. & Yokoi, H., 2017 Nov 22, 2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017. Institute of Electrical and Electronics Engineers Inc., Vol. 2017-January. p. 1-2 2 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Design of waveguide crossings with slot waveguide for polarization-independent optical triplexer

Yokoi, H., Tsuchida, K. & Matsumoto, D., 2017 Aug 11, 17th International Conference on Numerical Simulation of Optoelectronic Devices, NUSOD 2017. Willatzen, M. & Piprek, J. (eds.). IEEE Computer Society, p. 163-164 2 p. 8010042. (Proceedings of the International Conference on Numerical Simulation of Optoelectronic Devices, NUSOD).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Fabrication processes of magneto-optic waveguides with Si guiding layer for optical nonreciprocal devices

Choowitsakunlert, S., Takagiwa, K., Kobashigawa, T., Hosoya, N., Silapunt, R. & Yokoi, H., 2017 Jun 13, Proceedings of 2017 5th International Workshop on Low Temperature Bonding for 3D Integration, LTB-3D 2017. Institute of Electrical and Electronics Engineers Inc., 1 p. 7947478

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Novel A-Si on garnet nonreciprocal phase shift optical isolator with TE mode operation

Ishida, E., Miura, K., Shoji, Y., Yokoi, H., Mizumoto, T., Nishiyama, N. & Arai, S., 2017 May 31, 2017 Optical Fiber Communications Conference and Exhibition, OFC 2017 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 7937045

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Weight sensor by 3D printed mechanically induced long-period fiber grating for power control inside single-mode fiber

Khun-In, R., Nanjo, K., Jiraraksopakun, Y., Bhatranand, A. & Yokoi, H., 2017 Nov 19, 22nd Microoptics Conference, MOC 2017. Institute of Electrical and Electronics Engineers Inc., Vol. 2017-November. p. 246-247 2 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2016

A study of antiferromagnetic-pinned multiferroic composites nano read head

Choowitsakunlert, S., Silapunt, R. & Yokoi, H., 2016, ASME 2016 Conference on Information Storage and Processing Systems, ISPS 2016. American Society of Mechanical Engineers

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Design of optical isolator with strip-loaded waveguide employing nonreciprocal guided-radiation mode conversion

Okada, Y., Kobayashi, K., Shoji, Y., Mizumoto, T. & Yokoi, H., 2016 Feb 23, MOC 2015 - Technical Digest of 20th Microoptics Conference. Institute of Electrical and Electronics Engineers Inc., 7416458

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Optical isolator with Si guiding layer fabricated by photosensitive adhesive bonding

Yokoi, H., Choowitsakunlert, S., Kobayashi, K. & Takagiwa, K., 2016, Semiconductor Wafer Bonding: Science, Technology and Applications 14. 9 ed. Electrochemical Society Inc., Vol. 75. p. 215-220 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)
2015

Design of polarization rotators in TE-TM mode conversion optical isolator with Ce: YIG guiding layer

Okada, Y., Tamura, D., Kobayashi, K. & Yokoi, H., 2015 Sep 1, In : Japanese Journal of Applied Physics. 54, 9, 092202.

Research output: Contribution to journalArticle

1 Citation (Scopus)
2014

Coupling efficiency between laser diode and optical isolator integrated by photosensitive adhesive bonding

Tamura, D., Okada, Y., Shoji, Y., Mizumoto, T. & Yokoi, H., 2014 Jan 1, Proceedings of 2014 4th IEEE International Workshop on Low Temperature Bonding for 3D Integration, LTB-3D 2014. IEEE Computer Society, 1 p. 6886155. (Proceedings of 2014 4th IEEE International Workshop on Low Temperature Bonding for 3D Integration, LTB-3D 2014).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Design of polarization-independent optical isolator with amorphous silicon waveguide

Shoji, Y., Miura, K., Okada, Y., Yokoi, H. & Mizumoto, T., 2014 Nov 18, IEEE International Conference on Group IV Photonics GFP. IEEE Computer Society, p. 171-172 2 p. 6961974. (IEEE International Conference on Group IV Photonics GFP).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Novel a-Si on garnet nonreciprocal phase shift optical isolator with Te mode operation

Ishida, E., Miura, K., Shoji, Y., Yokoi, H., Mizumoto, T., Nishiyama, N. & Arai, S., 2014 Jul 21, Optical Fiber Communication Conference, OFC 2017. OSA - The Optical Society, Vol. Part F40-OFC 2017.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Optical isolator with amorphous silicon waveguide core on magneto-optical garnet

Miura, K., Hirasawa, T., Kang, J., Shoji, Y., Okada, Y., Yokoi, H., Nishiyama, N., Arai, S. & Mizumoto, T., 2014 Nov 18, IEEE International Conference on Group IV Photonics GFP. IEEE Computer Society, p. 116-117 2 p. 6961954. (IEEE International Conference on Group IV Photonics GFP).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2013

Hybrid integration of laser diode and magneto-optic waveguides based on adhesive bonding

Yokoi, H., Myouenzono, I. & Tamura, D., 2013 Nov 18, 2013 IEEE Photonics Society Summer Topical Meeting Series, PSSTMS 2013. p. 215-216 2 p. 6614501. (2013 IEEE Photonics Society Summer Topical Meeting Series, PSSTMS 2013).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Strip-loaded waveguide optical isolator employing nonreciprocal guided-radiation mode conversion

Yokoi, H. & Takaki, K., 2013 Jan 1, Integrated Optoelectronics 6. 33 ed. Electrochemical Society Inc., p. 61-66 6 p. (ECS Transactions; vol. 45, no. 33).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Waveguide optical triplexer with cascaded multi-mode interference couplers

Yokote, R., Kojima, Y. & Yokoi, H., 2013 Oct 28, 2013 18th OptoElectronics and Communications Conference Held Jointly with 2013 International Conference on Photonics in Switching, OECC/PS 2013. 6597557. (2013 18th OptoElectronics and Communications Conference Held Jointly with 2013 International Conference on Photonics in Switching, OECC/PS 2013).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)
2012

Adhesive bonding for integrating laser diode and optical isolator

Yokoi, H., Myouenzono, I. & Ichishima, N., 2012 Aug 15, Proceedings of 2012 3rd IEEE International Workshop on Low Temperature Bonding for 3D Integration, LTB-3D 2012. 1 p. 6238057. (Proceedings of 2012 3rd IEEE International Workshop on Low Temperature Bonding for 3D Integration, LTB-3D 2012).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Integrating laser diode and optical isolator by photosensitive adhesive bonding

Yokoi, H., Ichishima, N. & Myouenzono, I., 2012 Dec 1, Semiconductor Wafer Bonding 12: Science, Technology, and Applications. 7 ed. p. 393-398 6 p. (ECS Transactions; vol. 50, no. 7).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2011

Design of optical isolator with sputter-deposited Si layer employing nonreciprocal radiation-mode conversion

Yokoi, H., Yamaguchi, K. & Uchiumi, Y., 2011 Jul 1, In : Japanese Journal of Applied Physics. 50, 7 PART 1, 078001.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Design of optical isolator with sputter-deposited Si layer employing nonreciprocal radiaton-mode conversion

Yokoi, H., Yamaguchi, K. & Uchiumi, Y., 2011 Jul 20, In : Japanese Journal of Applied Physics. 50, p. 078001-1-078001-2

Research output: Contribution to journalArticle

Design of optical isolator with tio 2 / (cey) 3fe 5o 12 guiding layer

Yokoi, H., Ikeya, S. & Imada, T., 2011 Dec 1, Integrated Nonreciprocal Photonics - Materials, Phenomena and Devices. p. 27-31 5 p. (Materials Research Society Symposium Proceedings; vol. 1291).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Design of optical triplexer with cascaded mulit-mode interference couplers

Ikeya, S., Yokoi, H., Kawasaki, T. & Hoshi, T., 2011 Sep 5, In : 11th International Conf. on Numerical Simulation of Optoelectronic Devices.

Research output: Contribution to journalArticle

Garnet photonics toward developing laser diode integrated with optical isolator with Si guiding layer

Yokoi, H., Igarashi, S., Uchiumi, Y. & Tani, K., 2011 Mar 1, In : Physica Status Solidi (C) Current Topics in Solid State Physics. 8, 3, p. 1071-1074 4 p.

Research output: Contribution to journalArticle

2010

Design of optical isolator with TiO2 / (CeY)3Fe5O12 guiding layer

Yokoi, H., Ikeya, S. & Imada, T., 2010 Nov 30, In : Technial Digest on Materials Research Society’s 2010 Fall Meeting.

Research output: Contribution to journalArticle

Interferometric optical isolator with air/Si/magnetic-garnet waveguide operated in unidirectional magnetic field

Yokoi, H., Igarashi, S. & Uchiumi, Y., 2010 May 1, In : Japanese Journal of Applied Physics. 49, 5 PART 1, p. 580021-580022 2 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)
2009

Sputter-Deposited Si layer for optical isolator with si guiding layer

Yokoi, H., Sasaki, K. & Aiba, T., 2009 Jun 1, In : Japanese Journal of Applied Physics. 48, 6, 062202.

Research output: Contribution to journalArticle

10 Citations (Scopus)
2008

Calculation of nonreciprocal phase shift in magneto-optic waveguides with Ce:YIG layer

Yokoi, H., 2008 Jan 1, In : Optical Materials. 31, 2, p. 189-192 4 p.

Research output: Contribution to journalArticle

18 Citations (Scopus)

Calculation of nonreciprocal phase shift in magneto-optic waveguides with Ce:YIG layer

Yokoi, H., 2008 Dec 1, In : Optical Materials. 31, p. 189-192

Research output: Contribution to journalArticle

Generation of sub-30 fs pulses from a mode-locked ytterbium fiber laser oscillator with phase compensation

Zhou, X., Yoshitomi, D., Kobayashi, Y., Tani, S., Yokoi, H. & Torizuka, K., 2008 Sep 15, 2008 Conference on Quantum Electronics and Laser Science Conference on Lasers and Electro-Optics, CLEO/QELS. 4551036. (2008 Conference on Quantum Electronics and Laser Science Conference on Lasers and Electro-Optics, CLEO/QELS).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Magneto-optical isolator with silicon waveguides fabricated by direct bonding

Shoji, Y., Mizumoto, T., Yokoi, H., Hsieh, I. W. & Osgood, R. M., 2008 Mar 3, In : Applied Physics Letters. 92, 7, 071117.

Research output: Contribution to journalArticle

229 Citations (Scopus)

Magneto-optical isolator with SOI waveguide

Shoji, Y., Yokoi, H., Hsieh, I. W., Osgood, R. M. & Mizumoto, T., 2008 Aug 19, OFC/NFOEC 2008 - 2008 Conference on Optical Fiber Communication/National Fiber Optic Engineers Conference. 4528581. (OFC/NFOEC 2008 - 2008 Conference on Optical Fiber Communication/National Fiber Optic Engineers Conference).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Optical isolator with Si guiding layer fabricated by uv-activated bonding

Yokoi, H. & Sasaki, K., 2008 Dec 1, ECS Transactions - Semiconductor Wafer Bonding 10: Science, Technology, and Applications. 8 ed. p. 155-161 7 p. (ECS Transactions; vol. 16, no. 8).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Optical isolator with TiO2/magnetic garnet waveguide employing nonreciprocal phase shift

Yokoi, H., 2008 Jun 1, In : Physica Status Solidi. 5, p. 3373-3375

Research output: Contribution to journalArticle

Optical isolator with TiO2/magnetic garnet waveguide employing nonreciprocal phase shift

Yokoi, H., Kono, H., Sekine, K., Shoji, Y. & Mizumoto, T., 2008 Dec 1, In : Physica Status Solidi (C) Current Topics in Solid State Physics. 5, 10, p. 3373-3375 3 p.

Research output: Contribution to journalConference article

UV-activated bonding between magnetic garnet and Si for optical isolator with Si guiding layer

Yokoi, H. & Sasaki, K., 2008 Oct 14, In : Electrochem. Soc. Trans.. 16, p. 155-161

Research output: Contribution to journalArticle

2 Citations (Scopus)
2007

Laser-mode dynamics measurement and control of modelocked Er-fiber lasers

Kobayashi, Y., Yoshitomi, D., Sakakibara, Y., Kataura, H., Takada, H., Kakehata, M., Torizuka, K., Onuma, T., Yokoi, H., Sekiguchi, T. & Nakamura, S., 2007 Dec 1, Conference on Lasers and Electro-Optics, 2007, CLEO 2007. 4452625. (Conference on Lasers and Electro-Optics, 2007, CLEO 2007).

Research output: Chapter in Book/Report/Conference proceedingConference contribution