H. Oohashi

1.2k total citations
74 papers, 950 citations indexed

About

H. Oohashi is a scholar working on Electrical and Electronic Engineering, Atomic and Molecular Physics, and Optics and Biomedical Engineering. According to data from OpenAlex, H. Oohashi has authored 74 papers receiving a total of 950 indexed citations (citations by other indexed papers that have themselves been cited), including 72 papers in Electrical and Electronic Engineering, 29 papers in Atomic and Molecular Physics, and Optics and 4 papers in Biomedical Engineering. Recurrent topics in H. Oohashi's work include Semiconductor Lasers and Optical Devices (57 papers), Photonic and Optical Devices (56 papers) and Optical Network Technologies (30 papers). H. Oohashi is often cited by papers focused on Semiconductor Lasers and Optical Devices (57 papers), Photonic and Optical Devices (56 papers) and Optical Network Technologies (30 papers). H. Oohashi collaborates with scholars based in Japan and United States. H. Oohashi's co-authors include Hiroyuki Ishii, K. Kasaya, T. Hirono, Y. Tohmori, K. Yokoyama, Hisatoshi Sugiura, S. Seki, Yoshihiro Kawaguchi, H. Ando and Naoki Fujiwara and has published in prestigious journals such as Physical review. B, Condensed matter, Journal of Applied Physics and Journal of Lightwave Technology.

In The Last Decade

H. Oohashi

67 papers receiving 859 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
H. Oohashi Japan 17 906 483 54 34 25 74 950
F. Favire United States 17 983 1.1× 658 1.4× 75 1.4× 27 0.8× 21 0.8× 53 1.0k
K. Kasaya Japan 15 798 0.9× 364 0.8× 64 1.2× 41 1.2× 17 0.7× 40 811
E. Derouin France 12 832 0.9× 562 1.2× 26 0.5× 34 1.0× 29 1.2× 54 859
C. Kazmierski France 16 838 0.9× 483 1.0× 28 0.5× 21 0.6× 41 1.6× 111 874
E. L. Portnoĭ Russia 11 486 0.5× 475 1.0× 28 0.5× 35 1.0× 35 1.4× 66 553
Gray Lin Taiwan 11 397 0.4× 371 0.8× 21 0.4× 27 0.8× 51 2.0× 76 448
S. Weisser Germany 14 614 0.7× 437 0.9× 64 1.2× 16 0.5× 17 0.7× 53 631
A. Kasukawa Japan 18 1.1k 1.2× 778 1.6× 77 1.4× 29 0.9× 36 1.4× 139 1.1k
M.A. Newkirk United States 18 970 1.1× 504 1.0× 45 0.8× 27 0.8× 15 0.6× 60 999
A. Tomlinson United Kingdom 6 653 0.7× 325 0.7× 43 0.8× 16 0.5× 18 0.7× 9 688

Countries citing papers authored by H. Oohashi

Since Specialization
Citations

This map shows the geographic impact of H. Oohashi's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by H. Oohashi with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites H. Oohashi more than expected).

Fields of papers citing papers by H. Oohashi

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by H. Oohashi. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by H. Oohashi. The network helps show where H. Oohashi may publish in the future.

Co-authorship network of co-authors of H. Oohashi

This figure shows the co-authorship network connecting the top 25 collaborators of H. Oohashi. A scholar is included among the top collaborators of H. Oohashi based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with H. Oohashi. H. Oohashi is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Oohashi, H., Nobuhiro Nunoya, & Hiroyuki Ishii. (2012). Tunable semiconductor lasers for optical communications. 521–522. 1 indexed citations
2.
Ishii, Hiroyuki, K. Kasaya, & H. Oohashi. (2011). Wavelength-tunable Lasers for Next-generation Optical Networks. NTT technical review. 9(3). 42–47. 8 indexed citations
3.
Kanazawa, Shigeru, Takeshi Fujisawa, A. Ohki, et al.. (2010). Low-voltage operation of 100-Gbit/s EADFB laser array module. 21. 57–58. 3 indexed citations
4.
Nunoya, Nobuhiro, Hiroyuki Ishii, Naoki Fujiwara, & H. Oohashi. (2010). Novel Thermal Drift Suppression Method in Channel Switching of Mode-hop-free Tunable Laser Array. Optical Fiber Communication Conference. OWU6–OWU6. 1 indexed citations
5.
Shibata, Yasuo, E. Yamada, Akira Ohki, et al.. (2010). Demonstration of 112-Gbit/s DP-QPSK modulation using InP n-p-i-n Mach-Zehnder modulators. 20. 1–3. 7 indexed citations
6.
Takeshita, Takaharu, T. Sato, Manabu Mitsuhara, Y. Kondo, & H. Oohashi. (2009). Degradation Analysis of InP Buried Heterostructure Layers in Lasers Using Optical-Beam-Induced-Current Technique. IEEE Transactions on Device and Materials Reliability. 10(1). 142–148. 3 indexed citations
7.
Takeshita, Takaharu, Tomonari Sato, Manabu Mitsuhara, Yasuhiro Kondo, & H. Oohashi. (2009). Reliable 2.3-$\mu$m Wavelength Highly Strained InAs–InP MQW-DFB Lasers With p-/n-InP Buried Heterostructure. IEEE Photonics Technology Letters. 21(13). 896–898. 2 indexed citations
8.
Fujiwara, Naoki, R. Yoshimura, Kiyoshi Katō, et al.. (2008). Single-mode 140 nm swept light source realized by using SSG-DBR lasers. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 6847. 684713–684713. 1 indexed citations
9.
Fujiwara, Naoki, R. Yoshimura, Kazutoshi Kato, et al.. (2008). 140-nm Quasi-Continuous Fast Sweep Using SSG-DBR Lasers. IEEE Photonics Technology Letters. 20(12). 1015–1017. 10 indexed citations
10.
Nunoya, Nobuhiro, Y. Shibata, Hiroyuki Ishii, et al.. (2006). Novel Tunable DFB Laser with Separated High Coupling Coefficient Gratings. 68–71.
11.
Oohashi, H., Hiroyuki Ishii, & K. Kasaya. (2006). Widely Tunable DFB Laser Array (TLA). 286–288. 3 indexed citations
12.
Tohmori, Y., et al.. (2002). Wavelength-Tunable Semiconductor Light Sources for WDM Applications. IEICE Transactions on Electronics. 85(1). 21–26. 8 indexed citations
13.
Kondo, Yasuhiro, Kenji Kishi, Mikitaka Itoh, et al.. (2002). 1.3-μm buried-heterostructure lasers using a CH/sub 4/ reactive-ion-etched mesa structure grown by metalorganic vapor phase epitaxy. thb2 6. 384–387. 4 indexed citations
14.
Oohashi, H., et al.. (1996). Reliability of 1300-nm spot-size converted lasers for low-cost optical module used in fiber-to-the-home. European Conference on Optical Communication. 2. 115–118. 2 indexed citations
15.
Seki, S., H. Oohashi, Hisatoshi Sugiura, T. Hirono, & K. Yokoyama. (1996). Study on the dominant mechanisms for the temperature sensitivity of threshold current in 1.3-μm InP-based strained-layer quantum-well lasers. IEEE Journal of Quantum Electronics. 32(8). 1478–1486. 88 indexed citations
16.
Oohashi, H., T. Hirono, S. Seki, et al.. (1995). 1.3 μm InAsP compressively strained multiple-quantum-well lasers for high-temperature operation. Journal of Applied Physics. 77(8). 4119–4121. 25 indexed citations
17.
Ando, H., H. Oohashi, & Hiroshi Kanbe. (1991). Carrier-induced optical nonlinear effects in semiconductor quantum well wire structure. Journal of Applied Physics. 70(11). 7024–7032. 24 indexed citations
18.
Ando, Hiroaki, H. Oohashi, H. Iwamura, & H. Kanbe. (1989). Improvement of optical nonlinear response in GaAs/AlGaAs nipi -MQW structure with Au ohmic contact. Electronics Letters. 25(18). 1212–1214. 2 indexed citations
19.
Ando, H., H. Iwamura, H. Oohashi, & H. Kanbe. (1989). Nonlinear absorption in n-i-p-i-MQW structures. IEEE Journal of Quantum Electronics. 25(10). 2135–2141. 30 indexed citations
20.
Tohmori, Y., Kazuhiro Komori, Shigehisa Arai, Y. Suematsu, & H. Oohashi. (1985). Wavelength tunable 1.5-micron GaInAsP/InP bundle-integrated-guide distributed Bragg reflector (BIG-DBR) lasers. 68(12). 788–790. 8 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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