K. Okamoto

3.5k total citations · 1 hit paper
110 papers, 2.7k citations indexed

About

K. Okamoto is a scholar working on Electrical and Electronic Engineering, Atomic and Molecular Physics, and Optics and Mechanical Engineering. According to data from OpenAlex, K. Okamoto has authored 110 papers receiving a total of 2.7k indexed citations (citations by other indexed papers that have themselves been cited), including 97 papers in Electrical and Electronic Engineering, 16 papers in Atomic and Molecular Physics, and Optics and 10 papers in Mechanical Engineering. Recurrent topics in K. Okamoto's work include Optical Network Technologies (46 papers), Advanced Fiber Optic Sensors (38 papers) and Photonic and Optical Devices (36 papers). K. Okamoto is often cited by papers focused on Optical Network Technologies (46 papers), Advanced Fiber Optic Sensors (38 papers) and Photonic and Optical Devices (36 papers). K. Okamoto collaborates with scholars based in Japan, United States and United Kingdom. K. Okamoto's co-authors include Yutaka Sasaki, J. Noda, T. Hosaka, T. Edahiro, Yutaka S. Sato, Koichi Takiguchi, K. Takada, S. Mironov, Qing Yang and M. Ishii and has published in prestigious journals such as Optics Letters, Materials Science and Engineering A and IEEE Transactions on Microwave Theory and Techniques.

In The Last Decade

K. Okamoto

104 papers receiving 2.5k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Polarization-maintaining fibers and their applications

1986 438 citations J. Noda, K. Okamoto et al. Journal of Lightwave Technology profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
K. Okamoto Japan	29	2.2k	674	394	140	89	110	2.7k
Katsunari Okamoto Japan	33	2.8k 1.3×	1.1k 1.6×	386 1.0×	167 1.2×	84 0.9×	177	3.3k
Pascal Nouet France	18	1.1k 0.5×	410 0.6×	288 0.7×	79 0.6×	44 0.5×	173	1.3k
Byoung Yoon Kim South Korea	26	2.5k 1.1×	1.4k 2.1×	101 0.3×	80 0.6×	171 1.9×	170	2.9k
S. Łęgowski Poland	21	1.6k 0.7×	263 0.4×	366 0.9×	55 0.4×	298 3.3×	125	2.1k
Rihong Zhu China	24	1.6k 0.7×	683 1.0×	336 0.9×	55 0.4×	141 1.6×	182	2.3k
Li Pei China	29	2.8k 1.3×	1.2k 1.8×	114 0.3×	55 0.4×	37 0.4×	287	3.1k
Tsuyoshi Takahashi Japan	22	1.4k 0.6×	453 0.7×	92 0.2×	51 0.4×	158 1.8×	167	1.7k
C. E. Campanella Italy	17	1.3k 0.6×	877 1.3×	74 0.2×	83 0.6×	40 0.4×	46	1.7k
Xiaoqiang Zhang China	21	912 0.4×	392 0.6×	231 0.6×	72 0.5×	191 2.1×	84	1.4k

Countries citing papers authored by K. Okamoto

Since Specialization

Citations

This map shows the geographic impact of K. Okamoto'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 K. Okamoto with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites K. Okamoto more than expected).

Fields of papers citing papers by K. Okamoto

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by K. Okamoto. 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 K. Okamoto. The network helps show where K. Okamoto may publish in the future.

Co-authorship network of co-authors of K. Okamoto

This figure shows the co-authorship network connecting the top 25 collaborators of K. Okamoto. A scholar is included among the top collaborators of K. Okamoto 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 K. Okamoto. K. Okamoto is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

1.

Okamoto, K., et al.. (2016). Design of artificial mains network for conducted disturbance from 2 kHz to 30 MHz. 644–648. 2 indexed citations

2.

Okamoto, K., et al.. (2015). A study on conducted disturbance below 150 kHz from commercial power-conditioning system. 6. 1–3. 6 indexed citations

3.

Tsuji, Y., Miharu Miyamura, Munehiro Tada, et al.. (2015). Sub-μW standby power, <18 µW/DMIPS@25MHz MCU with embedded atom-switch programmable logic and ROM. T86–T87. 8 indexed citations

4.

Nakamura, Atsushi, et al.. (2014). Highly sensitive detection of fiber bending using 1-mum-band Mode-detection OTDR. Australian Conference on Optical Fibre Technology. 386–388. 1 indexed citations

5.

Fujita, Jun‐ichi, Tetsuo Hattori, & K. Okamoto. (2013). Phase control dimming circuit used the “Diristar” composed of an LED and a photodiode. 998–1002.

6.

Okamoto, K., et al.. (2010). Probabilistic modeling to inverse halftoning based on super resolution. ICCAS 2010. 162–167. 4 indexed citations

7.

Takiguchi, Koichi, K. Okamoto, & A. Sugita. (2006). Arrayed-waveguide grating with uniform loss properties over the entire range of wavelength channels. Optics Letters. 31(4). 459–459. 13 indexed citations

8.

Sato, Yutaka S., et al.. (2005). Microstructural characterisation of stir zone containing residual ferrite in friction stir welded 304 austenitic stainless steel. Science and Technology of Welding & Joining. 10(5). 550–556. 92 indexed citations

9.

Cao, Jing, et al.. (2002). Cascaded Operation of an Optical Packet Routing System with Optical-Label Switching and 2R-Regeneration. European Conference on Optical Communication. 2. 1–2. 2 indexed citations

10.

Takada, K., et al.. (2001). Low-crosstalk 10-GHz-spaced 512-channel arrayed-waveguide grating multi/demultiplexer fabricated on a 4-in wafer. IEEE Photonics Technology Letters. 13(11). 1182–1184. 40 indexed citations

11.

Takada, K. & K. Okamoto. (1999). Polarization-adjustment-free OLCR using orthogonal polarization switching. IEEE Photonics Technology Letters. 11(11). 1467–1469. 1 indexed citations

12.

Tsuda, Hiroyuki, Hirokazu Takenouchi, T. Ishii, et al.. (1999). Spectral encoding and decoding of 10 Gbit/s femtosecondpulses using high resolution arrayed-waveguide grating. Electronics Letters. 35(14). 1186–1188. 72 indexed citations

13.

Kawanishi, S., K. Okamoto, M. Ishii, et al.. (1997). All-optical time-division-multiplexing of 100 Gbit/ssignal based on four-wave mixing in a travelling-wave semiconductor laser amplifier. Electronics Letters. 33(11). 976–977. 22 indexed citations

14.

Okamoto, K.. (1990). Theoretical investigation of light coupling phenomena in wavelength-flattened couplers. Journal of Lightwave Technology. 8(5). 678–683. 22 indexed citations

15.

Xie, Haoran, K. Okamoto, P. Dabkiewicz, & R. Ulrich. (1986). Side-hole fiber for fiber-optic pressure sensing. Optics Letters. 11(5). 333–333. 97 indexed citations

16.

Yokohama, I., K. Okamoto, M. Kawachi, & J. Noda. (1984). Polarising fibre coupler with high extinction ratio. Electronics Letters. 20(24). 1004–1005. 3 indexed citations

17.

Hosaka, T., K. Okamoto, & T. Edahiro. (1983). Fiber circular polarizer. Applied Optics. 22(23). 3850–3850. 3 indexed citations

18.

Shibata, N., K. Okamoto, Mitsuhiro Tateda, Shigeyuki Seikai, & Yutaka Sasaki. (1983). Modal birefringence and polarization mode dispersion in single-mode fibers with stress-induced anisotropy. IEEE Journal of Quantum Electronics. 19(6). 1110–1115. 18 indexed citations

19.

Sasaki, Yutaka, K. Okamoto, T. Hosaka, & N. Shibata. (1982). Polarization-maintaining and absorption-reducing fibers. ThCC6–ThCC6. 18 indexed citations

20.

Okamoto, K., Yutaka Sasaki, T. Miya, M. Kawachi, & T. Edahiro. (1980). Polarisation characteristics in long length v.a.d. single-mode fibres. Electronics Letters. 16(20). 768–769. 20 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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