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Dive into the research topics where Takuya Kitano is active.

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Featured researches published by Takuya Kitano.


Applied Physics Letters | 2017

Bandwidth enhancement scheme demonstration on direct modulation active-MMI laser diode using multiple photon photon resonance

Bingzhou Hong; Takuya Kitano; Tomotaka Mori; Haisong Jiang; Kiichi Hamamoto

By introducing properly designed multiple photo photon resonances (PPRs) on an active-Multimode Interferometer Laser Diode, the confirmed direct modulation bandwidth was enhanced from less than 5 GHz to at least 34 GHz. Multiple oscillating cavities that have slightly different free space ranges (FSRs) are integrated within a single device. The overlap between such FSRs contributes to multiple wavelength differences that are directly related to the PPR frequencies. Evaluated PPR frequencies from experimental data match with designed frequencies. The potential of the 100 GHz level bandwidth of the device has been proved.


microoptics conference | 2015

Theoretical modelling of photon-photon resonance on active multimode interferometer laser diode toward 40Gbps

Bingzhou Hong; Mohammad Nasir Uddin; Takuya Kitano; Akio Tajima; Haisong Jiang; Kiichi Hamamoto

Theoretical modelling of photon-photon resonance is confirmed on active MMI LD for the first time. As a result, experimentally obtained resonance peak on active MMI LD of 15GHz is explained successfully.


microoptics conference | 2017

Multiple photon photon resonance by using active-multimode interferometer laser diode

Bingzhou Hong; Takuya Kitano; Tomotaka Mori; Haisong Jiang; Kiichi Hamamoto

Active-multimode interferometer laser diode that integrates at least six oscillating cavities has been achieved successfully. Multiple cavities contribute to multiple longitudinal mode spacings as well as multiple PPR frequencies. Device aiming 100 GHz bandwidth design principle is proposed.


european conference on optical communication | 2017

Bandwidth Enhancement Scheme Demonstration (from 5 GHz to 34 GHz) on Direct Modulation Laser Diode Using Multiple PPR (Photon-Photon Resonance) Active MMI

Bingzhou Hong; Takuya Kitano; Tomotaka Mori; Haisong Jiang; Kiichi Hamamoto

Multiple cavity active-Multimode Interferometer Laser Diode demonstrates multiple photon-photon resonances (8 GHz, 10 GHz, 13 GHz, 19 GHz, 23 GHz and 36 GHz) for the first time. Modulation bandwidth of at least 34 GHz was confirmed.


The Japan Society of Applied Physics | 2018

Thermal Conductivity of Single-Walled Carbon Nanotube Films Dependent on Their Assembly Structures

Takuya Kitano; Tomoko Murayama; Tsuyoshi Kawai; Yoshiyuki Nonoguchi


The Japan Society of Applied Physics | 2017

Development of Water Plasma Ashing Technology for Minimal Fabrication System

Takeshi Aizawa; Takeshi Yamada; Mitsunori Nogawa; Yasuhiro Onishi; Noriko Miura; Tatsuo Ishijima; Takuya Kitano; Hiroaki Suzuki; Arufa Shiota; Sommawan Khumpuang; Shiro Hara


The Japan Society of Applied Physics | 2017

Spectroscopic Investigations in Water Plasma Ashing Process for Polymer Films with Different Chemical Structures

Hiroaki Suzuki; Takuya Kitano; Arufua Shiota; Tatsuo Ishijima; Yasunori Tanaka; Yoshihiko Uesugi; Takashi Nishiyama; Hideo Horibe


The Japan Society of Applied Physics | 2017

Direct Modulation Bandwidth Enhancement Method based on Active-Multimode Interferometer Laser Diode Utilizing Multiple Photon Photon Resonance

Bingzhou Hong; Takuya Kitano; Tomotaka Mori; Haisong Jiang; Kiichi Hamamoto


IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences | 2017

First Demonstration of Mode Selective Active Multimode Interferometer Laser Diode

Bingzhou Hong; Takuya Kitano; Haisong Jiang; Akio Tajima; Kiichi Hamamoto


電子情報通信学会総合大会講演論文集 | 2016

C-4-9 Theoretical Modelling of Photon-Photon Resonance on Active Multimode Interferometer Laser Diode

Bingzhou Hong; Mohammad Nasir Uddin; Takuya Kitano; Akio Tajima; Haisong Jiang; Kiichi Hamamoto

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Shiro Hara

National Institute of Advanced Industrial Science and Technology

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