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106-Gbit/s PAM4 40-km Transmission Using an Avalanche Photodiode With 42-GHz Bandwidth
Masahiro Nada;Toshihide Yoshimatsu;Yoshifumi Muramoto;Tetsuichiro Ohno;Fumito Nakajima;Hideaki Matsuzaki
2018 Optical Fiber Communications Conference and Exposition (OFC)
Year: 2018 | Conference Paper |
Cited by: Papers (1)
Low-Power Consumption 28-Gb/s 80-km Transmission With 1.3-μm SOA-Assisted Extended-Reach EADFB Laser
Wataru Kobayashi;Naoki Fujiwara;Takahiko Shindo;Yoshitaka Ohiso;Toshihide Yoshimatsu;Shigeru Kanazawa;Tetsuichiro Ohno;Koichi Hasebe;Hiroyuki Ishii;Hideaki Matsuzaki
Journal of Lightwave Technology
Cited by: Papers (7)
We extend the transmission distance for 28-Gb/s optical links from 40 to 80 km in a single-mode fiber (SMF) in the 1.3-μm-wavelength window by using an intensity-modulation direct-detection scheme. To extend the link budget, and compensate for the optical loss of SMF, we try to increase the optical output power of an electroabsorption modulator integrated with distributed feedback (EADFB) laser. W...Show More
28-Gbit/s 80-km transmission using SOA-assisted extended-reach EADFB laser (AXEL)
Koichi Hasebe;Wataru Kobayashi;Naoki Fujiwara;Takahiko Shindo;Toshihide Yoshimatsu;Shigeru Kanazawa;Tetsuichiro Ohno;Hiroaki Sanjoh;Yoshitaka Ohiso;Hiroyuki Ishii;Yoshiaki Sone;Hideaki Matsuzaki
2017 Optical Fiber Communications Conference and Exhibition (OFC)
Year: 2017 | Conference Paper |
28-Gbit/s 80-km transmission using SOA-assisted extended-reach EADFB laser (AXEL)
Koichi Hasebe;Wataru Kobayashi;Naoki Fujiwara;Takahiko Shindo;Toshihide Yoshimatsu;Shigeru Kanazawa;Tetsuichiro Ohno;Hiroaki Sanjoh;Yoshitaka Ohiso;Hiroyuki Ishii;Yoshiaki Sone;Hideaki Matsuzaki
Year: 2017 | Conference Paper |
30-km Error-Free Transmission of Directly Modulated DFB Laser Array Transmitter Optical Sub-Assembly for 100-Gb Application
Shigeru Kanazawa;Wataru Kobayashi;Yuta Ueda;Takeshi Fujisawa;Kiyoto Takahata;Tetsuichiro Ohno;Toshihide Yoshimatsu;Hiroyuki Ishii;Hiroaki Sanjoh
Journal of Lightwave Technology
Cited by: Papers (26)
We fabricated the first compact 100-gigabit Ethernet (100GbE) transmitter optical sub-assembly (TOSA) using a directly modulated DFB laser (DML) array monolithically integrated with an optical multiplexer. Specially designed InGaAlAs/InGaAlAs multiple quantum wells make it possible to obtain a large gain in the 1295-1310-nm wavelength range and to operate at a high temperature of 55 °C. The four-c...Show More
Compact Hybrid-Integrated 100-Gb/s TOSA Using EADFB Laser Array and AWG Multiplexer
Takaharu Ohyama;Yoshiyuki Doi;Wataru Kobayashi;Shigeru Kanazawa;Takuya Tanaka;Kiyoto Takahata;Atsushi Kanda;Takeshi Kurosaki;Tetsuichiro Ohno;Hiroaki Sanjoh;Toshikazu Hashimoto
We have developed a compact hybrid-integrated four-lane $\times 25.8$ Gb/s transmitter optical sub-assembly (TOSA) for a 100 Gb/s transceiver for 40-km transmission. The TOSA has a simple configuration in which a four-channel electroabsorption modulator integrated distributed feedback (EADFB) laser array is directly attached to the input waveguide end-faces of a silica-based arrayed waveguide gr...Show More
Compact Hybrid Integrated 100-Gb/s Transmitter Optical Sub-Assembly Using Optical Butt-Coupling Between EADFB Lasers and Silica-Based AWG Multiplexer
Takaharu Ohyama;Yoshiyuki Doi;Wataru Kobayashi;Shigeru Kanazawa;Kiyoto Takahata;Atsushi Kanda;Takeshi Kurosaki;Takuya Tanaka;Tetsuichiro Ohno;Hiroaki Sanjoh;Toshikazu Hashimoto
A compact hybrid-integrated 100 Gb/s (4 lane × 25.78125 Gb/s) transmitter optical sub-assembly (TOSA) has been developed for a 100 Gb/s transceiver for 40-km transmission over a single-mode fiber. The TOSA has a simple configuration in which four electro-absorption modulator-integrated distributed feedback (EADFB) lasers are directly attached to the input waveguide end-face of a silica-based array...Show More
Compact Hybrid Integrated 100-Gb/s Transmitter Optical Sub-Assembly Using Optical Butt-Coupling Between EADFB Lasers and Silica-Based AWG Multiplexer
Takaharu Ohyama;Yoshiyuki Doi;Wataru Kobayashi;Shigeru Kanazawa;Kiyoto Takahata;Atsushi Kanda;Takeshi Kurosaki;Takuya Tanaka;Tetsuichiro Ohno;Hiroaki Sanjoh;Toshikazu Hashimoto
Compact hybrid-integrated 100-Gbit/s TOSA for 40-km transmission
Takaharu Ohyama;Yoshiyuki Doi;Shigeru Kanazawa;Kiyoto Takahata;Atsushi Kanda;Takeshi Kurosaki;Tetsuichiro Ohno;Hiroaki Sanjoh;Wataru Kobayashi;Takuya Tanaka;Toshikazu Hashimoto
2015 Opto-Electronics and Communications Conference (OECC)
Year: 2015 | Conference Paper |
Compact 8-wavelength receiver optical sub-assembly with a low-loss AWG demultiplexer for 400-gigabit datacom
Yoshiyuki Doi;Yasuhiko Nakanishi;Toshihide Yoshimatsu;Tetsuichiro Ohno;Hiroaki Sanjo
2015 European Conference on Optical Communication (ECOC)
Year: 2015 | Conference Paper |
Cited by: Papers (4)
Monolithically integrated directly modulated DFB laser array with MMI coupler for 100GBASE-LR4 application
Wataru Kobayashi;Shigeru Kanazawa;Yuta Ueda;Tetsuichiro Ohno;Toshihide Yoshimatsu;Takahiko Shindo;Hiroaki Sanjoh;Hiroyuki Ishii;Shinji Matsuo;Mikitaka Itoh
2015 Optical Fiber Communications Conference and Exhibition (OFC)
Year: 2015 | Conference Paper |
Cited by: Papers (3)
High-linearity avalanche photodiode for 40-km transmission with 28-Gbaud PAM4
Masahiro Nada;Shigeru Kanazawa;Hiroshi Yamazaki;Yasuhiko Nakanishi;Wataru Kobayashi;Yoshiyuki Doi;Takaharu Ohyama;Tetsuichiro Ohno;Kiyoto Takahata;Toshikazu Hashimoto;Hideaki Matsuzaki
2015 Optical Fiber Communications Conference and Exhibition (OFC)
Year: 2015 | Conference Paper |
Cited by: Papers (7)
Compact High-Responsivity Receiver Optical Subassembly With a Multimode-Output-Arrayed Waveguide Grating for 100-Gb/s Ethernet
Yoshiyuki Doi;Manabu Oguma;Toshihide Yoshimatsu;Tetsuichiro Ohno;Ikuo Ogawa;Eiji Yoshida;Toshikazu Hashimoto;Hiroaki Sanjo
Journal of Lightwave Technology
Cited by: Papers (12)
We developed a compact receiver optical subassembly (ROSA) for 100-Gigabit Ethernet (100 GbE) using multimode-output-arrayed waveguide grating (MM-AWG) and arrayed photodiodes (PDs). The four-channel silica-based MM-AWG has low insertion loss of less than 1 dB. The back-side-illumined PD with maximized-induced current structure provides high responsivity of 0.95 A/W. To avoid the distortion of the...Show More
Compact ROSA for 100-Gb/s (4 × 25 Gb/s) Ethernet with a PLC-based AWG demultiplexer
Yoshiyuki Doi;Manabu Oguma;Masayuki Ito;Ikuo Ogawa;Toshihide Yoshimatsu;Tetsuichiro Ohno;Eiji Yoshida;Hiroshi Takahashi
2013 Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference (OFC/NFOEC)
Year: 2013 | Conference Paper |
A CAN-type MIC-PD ROSA operating at 40-Gbit/s
36th European Conference and Exhibition on Optical Communication
Year: 2010 | Conference Paper |
25-Gbit/s receiver optical subassembly using maximized-induced-current photodiode
T. Ohno;K. Yoshino;Y. Muramoto;K. Sano;S. Kodama;N. Shigekawa
2010 22nd International Conference on Indium Phosphide and Related Materials (IPRM)
Year: 2010 | Conference Paper |
We fabricated 25-Gbit/s receiver optical subassemblies (ROSAs) using a maximized-induced-current photodiode (MIC-PD). By employing a high-speed and high-responsivity MIC-PD, we achieved successful operation at 25 Gbit/s using a flexible printed circuit board and a coaxial package designed for a 10-Gbit/s ROSA.Show More
Generation of 10-Gbit/s Optical Millimeter-Wave Signal using a 125-GHz Mode-Locked Laser Diode Integrated with an Electro-Absorption Modulator
F. Nakajima;T. Ohno;K. Yoshino;T. Furuta;T. Sato;Y. Kondo;H. Ito
2005 International Topical Meeting on Microwave Photonics
Year: 2005 | Conference Paper |
Cited by: Papers (4)
We fabricated a compact optical millimeter-wave (MMW) transmitter by monolithically integrating an active mode-locked laser diode (MLLD) and high-mesa electro-absorption (EA) modulators. From the frequency domain measurements of the 125-GHz optical MMW signal, we obtained a linewidth of less than 10 Hz and a timing jitter of 0.1 ps. As for the integrated EA modulator, a high extinction ratio (20 d...Show More
Mode-locking mechanism of the 40-GHz regeneratively mode-locked laser diode with 160-GHz optical pulse injection
Mechanism of injection locking with harmonic-frequency input pulses in a regeneratively mode-locked laser diode is investigated. We propose a model, in which the modulation sidebands generated near the free-running clock component causes mode locking, and the model is consistent with the behaviors of the measured timing jitter and optical modulation index. Mode locking of this laser with 320-GHz p...Show More
A 160-GHz semiconductor mode-locked laser directly driven by an 80-GHz electrical signal
OFC 2003 Optical Fiber Communications Conference, 2003.
Year: 2003 | Conference Paper |
163.66-GHz optical pulse train was generated by a semiconductor mode-locked laser integrated with a high-mesa EA modulator synchronized with 81.83-GHz electrical signal. Timing jitter of 0.15 ps and very low amplitude modulation noise are achieved.Show More
Long-wavelength semiconductor ring mode-locked lasers incorporating passive deep-ridge waveguides
T. Ohno;H. Ishii;S. Matsuo;H. Okamoto;Y. Kawaguchi;Y. Kondo;T. Furuta;H. Ito;Y. Yoshikuni
Summaries of Papers Presented at the Lasers and Electro-Optics. CLEO '02. Technical Diges
Year: 2002 | Conference Paper |
Summary form only given. We fabricated semiconductor ring mode-locked lasers using curved passive deep-ridge waveguide. A low threshold current of 25 mA was obtained by a ring laser without a saturable absorber. We also achieved hybrid mode-locking of the R-MLLDs at 29.5, 41.2, and 61.7 GHz with maximum optical modulation indices of 91.4, 87.6 and 42.0%, respectively.Show More
Measurement of intermodulation distortion in a unitraveling-carrier refracting-facet photodiode and a p-i-n refracting-facet photodiode
T. Ohno;H. Fukano;Y. Muramoto;T. Ishibashi;T. Yoshimatsu;Y. Doi
IEEE Photonics Technology Letters
Cited by: Papers (37)
In this letter, we present an experimental characterization of third-order intermodulation distortion (IM3) at 5.8 GHz in a unitraveling-carrier refracting-facet photodiode (UTC-RFPD) and a p-i-n refracting-facet photodiode (pin-RFPD). The IM3 in the pin-RFPD is considerably reduced compared to the waveguide-type p-i-n photodiode. The third-order intercept point (IP3) of the UTC-RFPD does not decr...Show More
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