Papers - Tanabe, Takasumi

Design of a passively mode-locked microlaser with an Er-doped microcavity and carbon nanotubes

Imamura R., Nakashima A., Nagashima K., Prugger Suzuki T.S.L., Ishida R., Fujii S., Tanabe T.

Optics InfoBase Conference Papers  2021

Comparison of microcomb-based light sources for optical data transmission

Kogure S., Ohtsuka T., Fujii S., Kumazaki H., Wada K., Hashimoto Y., Kobayashi Y., Araki T., Furusawa K., Sekine N., Tanabe T.

Optics InfoBase Conference Papers  2021

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We performed a transmission experiment to compare microcomb states using a silicon nitride microresonator. A modulation instability comb with the correct amount of detuning can provide a light source almost comparable to a soliton comb.

Fabrication of dispersion engineered ultrahigh-Q crystalline optical microresonator for broad-bandwidth optical parametric oscillation

Fujii S., Wada K., Kakinuma Y., Tanabe T.

Proceedings of SPIE - The International Society for Optical Engineering 11672 2021

ISSN  0277786X

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We demonstrate the all-precision-machining fabrication of ultrahigh-quality-factor (Q) crystalline optical microresonators. The obtained Q exceeds 100 million for both magnesium fluoride (MgF2) and calcium fluoride (CaF2) materials. This constitutes the highest Q factor obtained for whispering gallery mode crystalline microresonators fabricated solely by ultra-precision machining. We also achieve octave-wide optical parametric oscillation using an MgF2 resonator fabricated with a computer-controlled machining process. This method readily enables advanced dispersion engineering for optical parametric oscillation and makes it possible to explore microcavity nonlinear optics and quantum optics without the need for skilled manual polishing techniques.

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Stable formation of multiple solitons in an optical microresonator assisted by saturable absorption

Nakashima A., Fujii S., Imamura R., Nagashima K., Tanabe T.

Optics InfoBase Conference Papers  2021

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We numerically investigate soliton microcomb generation with a saturable absorption effect. We found that a cavity-integrated saturable absorber allows the formation of a much higher number of solitons than possible with a Kerr-only monolithic cavity.

Optical data transmission with a dissipative kerr soliton in an ultrahigh-Q MgF2 microresonator

Tanaka S., Fujii S., Wada K., Kumazaki H., Kogure S., Tasaka S., Ohtsuka T., Kawanishi S., Tanabe T.

Optics InfoBase Conference Papers  2021

Measurement of saturable absorption behavior of CNT/PDMS coated high-Q microcavity towards mode-locking of Er-doped laser

Imamura R., Nagashima K., Tanabe T.

International Conference on Metamaterials, Photonic Crystals and Plasmonics    198 - 199 2021

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We developed a method for coating CNT/PDMS on a high- Q silica microcavity that allows us to obtain saturable absorption that is needed for building a microresonator based Er-doped mode-locked laser.

Saturable absorption by carbon nanotubes on silica microtoroids

Kumagai, Tsutaru, Hirota, Naoya, Sato, Katsuya, Namiki, Koki, Maki, Hideyuki, Tanabe, Takasumi

JOURNAL OF APPLIED PHYSICS 123 ( 23 ) 933 - 938 2018.06

Research paper (scientific journal),  ISSN  0021-8979

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Suppression of optomechanical parametric oscillation in a toroid microcavity assisted by a Kerr comb

Suzuki, Ryo, Kato, Takumi, Kobatake, Tomoya, Tanabe, Takasumi

OPTICS EXPRESS 25 ( 23 ) 28806 - 28816 2017.11

Research paper (scientific journal),  ISSN  1094-4087

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Chalcogenide photonic crystal fiber for ultraflat mid-infrared supercontinuum generation

Vyas, Sandeep, Tanabe, Takasumi, Tiwari, Manish, Singh, Ghanshyam

CHINESE OPTICS LETTERS 14 ( 12 ) 26322 - 26331 2016.12

Research paper (scientific journal),  ISSN  1671-7694

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Kerr-induced controllable adiabatic frequency conversion in an ultrahigh Q silica toroid microcavity

Yoshiki, Wataru, Honda, Yoshihiro, Kobayashi, Misako, Tetsumoto, Tomohiro, Tanabe, Takasumi

OPTICS LETTERS 41 ( 23 ) 5482 - 5485 2016.12

Research paper (scientific journal),  ISSN  0146-9592

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Broad bandwidth third-harmonic generation via four-wave mixing and stimulated Raman scattering in a microcavity

Chen-Jinnai, Akitoshi, Kato, Takumi, Fujii, Shun, Nagano, Takuma, Kobatake, Tomoya, Tanabe, Takasumi

OPTICS EXPRESS 24 ( 23 ) 26322 - 26331 2016.11

Research paper (scientific journal),  ISSN  1094-4087

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Dispersion tailoring of a crystalline whispering gallery mode microcavity for a wide-spanning optical Kerr frequency comb

Nakagawa, Yosuke, Mizumoto, Yuta, Kato, Takumi, Kobatake, Tomoya, Itobe, Hiroki, Kakinuma, Yasuhiro, Tanabe, Takasumi

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS 33 ( 9 ) 1913 - 1920 2016.09

Research paper (scientific journal),  ISSN  0740-3224

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Ultraflat broadband supercontinuum in highly nonlinear Ge11.5As24Se64.5 photonic crystal fibres

Vyas, Sandeep, Tanabe, Takasumi, Tiwari, Manish, Singh, Ghanshyam

UKRAINIAN JOURNAL OF PHYSICAL OPTICS 17 ( 3 ) 132 - 139 2016.09

Research paper (scientific journal),  ISSN  1609-1833

Hysteresis behavior of Kerr frequency comb generation in a high-quality-factor whispering-gallery-mode microcavity

Kato, Takumi, Chen-Jinnai, Akitoshi, Nagano, Takuma, Kobatake, Tomoya, Suzuki, Ryo, Yoshiki, Wataru, Tanabe, Takasumi

JAPANESE JOURNAL OF APPLIED PHYSICS 55 ( 7 ) 26322 - 26331 2016.07

Research paper (scientific journal),  ISSN  0021-4922

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Compact resonant electro-optic modulator using randomness of a photonic crystal waveguide

Ooka, Yuta, Daud, Nurul Ashikin Binti, Tetsumoto, Tomohiro, Tanabe, Takasumi

OPTICS EXPRESS 24 ( 10 ) 1913 - 1920 2016.05

Research paper (scientific journal),  ISSN  1094-4087

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Thermal and quantum phase slips in niobium-nitride nanowires based on suspended carbon nanotubes

Masuda, Kohei, Moriyama, Satoshi, Morita, Yoshifumi, Komatsu, Katsuyoshi, Takagi, Tasuku, Hashimoto, Takayuki, Miki, Norihisa, Tanabe, Takasumi, Maki, Hideyuki

APPLIED PHYSICS LETTERS 108 ( 22 )  2016.05

Research paper (scientific journal),  ISSN  0003-6951

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Thermal Effects on Kerr Comb Generation in a CaF2 Whispering-Gallery Mode Microcavity

Kobatake, Tomoya, Kato, Takumi, Itobe, Hiroki, Nakagawa, Yosuke, Tanabe, Takasumi

IEEE PHOTONICS JOURNAL 8 ( 2 )  2016.04

Research paper (scientific journal),  ISSN  1943-0655

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NaCl ion detection using a silica toroid microcavity

Nishimura, Jiro, Kobayashi, Misako, Saito, Ryusuke, Tanabe, Takasumi

APPLIED OPTICS 54 ( 20 ) 6391 - 6396 2015.07

Research paper (scientific journal),  ISSN  1559-128X

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CMOS compatible high-Q photonic crystal nanocavity fabricated with photolithography on silicon photonic platform

Ooka, Yuta, Tetsumoto, Tomohiro, Fushimi, Akihiro, Yoshiki, Wataru, Tanabe, Takasumi

SCIENTIFIC REPORTS 5   19382 - 19387 2015.06

Research paper (scientific journal),  ISSN  2045-2322

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Octagonal toroid microcavity for mechanically robust optical coupling

Suzuki, Ryo, Kato, Takumi, Tetsumoto, Tomohiro, Tanabe, Takasumi

AIP ADVANCES 5 ( 5 ) 172 - 181 2015.05

Research paper (scientific journal),  ISSN  2158-3226

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