Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Shigenori Hayakawa"'
Autor:
Kazuki Suga, Kouji Nakahara, Shigenori Hayakawa, Masatoshi Arasawa, Ryu Washino, Takeshi Kitatani, Masatoshi Mitaki, Hironori Sakamoto, Shigehisa Tanaka
Publikováno v:
2022 28th International Semiconductor Laser Conference (ISLC).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bdcda6e4ff64374e3c4d9c0d68028e1a
https://doi.org/10.23919/islc52947.2022.9943488
https://doi.org/10.23919/islc52947.2022.9943488
Autor:
Shigehisa Tanaka, Tetsuya Nishida, Kouji Nakahara, Kaoru Okamoto, Shigenori Hayakawa, Yasushi Sakuma, Hironori Sakamoto, Ryu Washino, Masatoshi Mitaki, Kazuki Suga, Masatoshi Arasawa, Takeshi Kitatani
Publikováno v:
ECOC
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::71b9a68636bc74f1254bbbd6fdb5fb2a
https://doi.org/10.1109/ecoc52684.2021.9606099
https://doi.org/10.1109/ecoc52684.2021.9606099
Autor:
Masatoshi Mitaki, Masahiro Ebisu, Noriko Sasada, Akira Nakanishi, Kazuhiko Naoe, Takayuki Nakajima, Yuji Sekino, Masaru Mukaikubo, Shigenori Hayakawa
Publikováno v:
Journal of Lightwave Technology. 37:1686-1689
A 1.3- μ m directly modulated distributed feedback laser was newly developed by adopting an asymmetric corrugation pitch modulated grating structure and an InGaAlAs multiquantum well active layer with both a high optical confinement factor and a hig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::be1148b2115145766020cc9912e20c0d
https://doi.org/10.1109/jlt.2019.2894173
https://doi.org/10.1109/jlt.2019.2894173
Autor:
Shigetaka Hamada, Takayuki Nakajima, Akira Nakanishi, Noriko Sasada, Shigenori Hayakawa, Kazuhiko Naoe, Yuji Sekino, Masaru Onga
Publikováno v:
OFC
Four directly modulated DFB lasers with 1.3-μm CWDM range demonstrated 106-Gb/s PAM4 operation for transmission over 2-km SMF. Dispersion penalties of the lasers were less than 0.8 dB after 2-km transmission up to 70ºC.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fcc4e8029c78847d0f3514bca238c28b
https://doi.org/10.1364/ofc.2021.tu1d.4
https://doi.org/10.1364/ofc.2021.tu1d.4
Autor:
Ryosuke Nakajima, Shigetaka Hamada, Shigenori Hayakawa, Kazuhiko Naoe, Syunya Yamauchi, Nakai Yoshihiro, Hideaki Asakura, Yoriyoshi Yamaguchi, Tetsuyoshi Takamure
Publikováno v:
OFC
53-Gbaud EA-DFB lasers—with four wavelengths in the 1500-nm region—for 800-GbE applications were developed. They demonstrated uncooled 53-Gbaud PAM4 operation with a TDECQ of lower than 2.5 dB over a wide temperature from 20 to 85°C.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::46ef618d81d0961c46c1e4fb1a497c13
https://doi.org/10.1364/ofc.2020.m2b.3
https://doi.org/10.1364/ofc.2020.m2b.3
Autor:
Shigehisa Tanaka, Hironori Sakamoto, Masatoshi Arasawa, Yasushi Sakuma, Ryu Washino, Kazuki Suga, Shigenori Hayakawa, Masatoshi Mitaki, Kaoru Okamoto, Takeshi Kitatani, Tetsuya Nishida, Kouji Nakahara
Publikováno v:
OFC
The importance of high relaxation oscillation frequency to obtain superior 106-Gb/s PAM-4 waveforms was revealed for SR-LBH lasers. In addition, clear 56-Gb/s NRZ eye openings were first demonstrated up to 85°C using SR-LBH laser.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f7d35063039584f7b7d7138e1010badf
https://doi.org/10.1364/ofc.2020.t3c.2
https://doi.org/10.1364/ofc.2020.t3c.2
Autor:
Shigenori Hayakawa, Masatoshi Arasawa, Kazuki Suga, Hironori Sakamoto, Yasushi Sakuma, Kaoru Okamoto, Tetsuya Nishida, Masatoshi Mitaki, Ryu Washino, Kouji Nakahara, S. Tanaka, Takeshi Kitatani
Publikováno v:
45th European Conference on Optical Communication (ECOC 2019).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b1bec521440247742ad0fc785032c459
https://doi.org/10.1049/cp.2019.1025
https://doi.org/10.1049/cp.2019.1025
Autor:
Kazuhiko Naoe, M. Ebisu, Akira Nakanishi, Masatoshi Mitaki, M. Mukaikubo, Noriko Sasada, Shigenori Hayakawa, Yuji Sekino, Takayuki Nakajima
Publikováno v:
ECOC
Clear eye-openings were obtained for 53-Gbaud PAM4 (106-Gb/s) operation from 25°C to 80°C for the first time by using a newly developed $1.3-\mu m$ directly modulated DFB laser. Open eyes were successfully demonstrated after a 10-km SMF transmissio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bf72d89d8aeaf75c031d8f04c00d7b73
https://doi.org/10.1109/ecoc.2018.8535129
https://doi.org/10.1109/ecoc.2018.8535129
Autor:
Noriko Sasada, Kaoru Okamoto, Shigenori Hayakawa, M. Ebisu, Takayuki Nakajima, Kazuhisa Uomi, Akira Nakanishi, M. Mukaikubo, Kazuhiko Naoe, Yuji Sekino
Publikováno v:
2018 IEEE International Semiconductor Laser Conference (ISLC).
A 53.2 Gbit/s NRZ operation was achieved over a wide temperature range (WTR) of 20–80°C using direct modulation of 1.3-μm InGaAlAs-MQW DFB lasers. Moreover, clear eye openings were successfully demonstrated after a 2-km SMF transmission from 20 t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::06372df18a26eca1ddb6cdc87e670361
https://doi.org/10.1109/islc.2018.8516159
https://doi.org/10.1109/islc.2018.8516159
Autor:
Nakai Yoshihiro, Hideaki Asakura, Syunya Yamauchi, Yoriyoshi Yamaguchi, Hayato Takita, Shigenori Hayakawa, Akira Nakanishi, Atsushi Nakamura, Yasushi Sakuma, Masatoshi Mitaki, Kazuhiro Naoe
Publikováno v:
ECOC
Uncooled 53-Gbaud PAM4 operation of $1.3-\mu \text{m}$ electro-absorption modulator integrated DFB laser was demonstrated with 0.9 Vpp for the first time. We obtained extinction ratio of more than 4.9 dB and TDECQ of less than 2.3 dB from 20 to 85°C
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fee3ac02136d00db7a98db346a847412
https://doi.org/10.1109/ecoc.2018.8535399
https://doi.org/10.1109/ecoc.2018.8535399