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.
Development of a distributed sensing technique using Brillouin scattering
1995545 citationsT. Horiguchi, Kazuo Shimizu et al.Journal of Lightwave Technologyprofile →
Peers — A (Enhanced Table)
Peers by citation overlap · career bar shows stage (early→late)
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Countries citing papers authored by Yahei Koyamada
Since
Specialization
Citations
This map shows the geographic impact of Yahei Koyamada'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 Yahei Koyamada with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Yahei Koyamada more than expected).
This network shows the impact of papers produced by Yahei Koyamada. 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 Yahei Koyamada. The network helps show where Yahei Koyamada may publish in the future.
Co-authorship network of co-authors of Yahei Koyamada
This figure shows the co-authorship network connecting the top 25 collaborators of Yahei Koyamada.
A scholar is included among the top collaborators of Yahei Koyamada 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 Yahei Koyamada. Yahei Koyamada 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.
Izumita, Hisashi, et al.. (2011). Distributed vibration ditection with very high sensitivity using coherent OTDR. IEICE Technical Report; IEICE Tech. Rep.. 111(182). 49–52.
2.
Koyamada, Yahei, et al.. (2010). Numerical analysis of light transmission in bent trench optical fiber. IEICE Technical Report; IEICE Tech. Rep.. 110(248). 33–38.1 indexed citations
3.
Koyamada, Yahei, et al.. (2010). 31-km distributed temperature measurement with very high resolution using coherent-OTDR enhanced with bidirectional EDFA. 330–331.3 indexed citations
4.
Koyamada, Yahei, et al.. (2009). Numerical simulation of nonlinear pulse propagation effect on distributed strain and temperature measurement with BOTDA. IEICE technical report. Speech. 108(395). 39–44.
5.
Koyamada, Yahei. (2008). Studies on scattering of lightwave in single-mode fibers and fiber-optic distributed strain and temperature sensors. IEICE Technical Report; IEICE Tech. Rep.. 108(32). 33–38.1 indexed citations
6.
Chujo, Wataru, et al.. (2008). Experimental study of millimeter-wave optically controlled array antenna sharing optical phase shifters for transmission and reception. IEICE Technical Report; IEICE Tech. Rep.. 108(154). 25–30.1 indexed citations
Chujo, Wataru, et al.. (2007). Millimeter-wave true-time delay measurement in WDM-based optically controlled array antenna. 49.1 indexed citations
9.
Koyamada, Yahei, et al.. (2007). Practical method for measuring distributed strain and temperature with very high measurand resolution based on Rayleigh backscatter traces at multiple laser frequencies. IEICE Technical Report; IEICE Tech. Rep.. 107(191). 83–88.1 indexed citations
10.
Hogari, K., et al.. (2006). Polarization Dependence of Rayleigh Backscattered Waveform measured by Coherent OTDR with Frequency Stabilized Light Source. 106(33). 13–16.1 indexed citations
11.
Imamura, Katsunori, et al.. (2006). 6-dB SBS threshold improved optical fiber compatible with standard SMF. IEICE Technical Report; IEICE Tech. Rep.. 106(286). 5–8.2 indexed citations
12.
Nakamura, Shinki, Yahei Koyamada, Naoki Karasawa, et al.. (2003). Finite-difference Time-domain Analysis of Ultrashort Laser Pulse Propagation in a Fiber with Nonlinear Effects. 86(3). 449–457.
Kurashima, Toshio, Tsuneo Horiguchi, Mitsuhiro Tateda, & Yahei Koyamada. (1991). Large extension of dynamic range in distributed-fiber strain measurement using Brillouin spectroscopy. Conference on Lasers and Electro-Optics.4 indexed citations
19.
Koyamada, Yahei, T. Horiguchi, Masamitsu Tokuda, & N. Uchida. (1985). Theoretical analysis of optical fiber mode exciters constructed with alternate concatenation of step-index and graded-index fibers. Electronics and Communications in Japan. 68. 66–74.4 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.