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.
This map shows the geographic impact of L.A. Coldren'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 L.A. Coldren with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites L.A. Coldren more than expected).
This network shows the impact of papers produced by L.A. Coldren. 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 L.A. Coldren. The network helps show where L.A. Coldren may publish in the future.
Co-authorship network of co-authors of L.A. Coldren
This figure shows the co-authorship network connecting the top 25 collaborators of L.A. Coldren.
A scholar is included among the top collaborators of L.A. Coldren 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 L.A. Coldren. L.A. Coldren is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Ramaswamy, Anand, Nobuhiro Nunoya, Molly Piels, et al.. (2009). Experimental analysis of two measurement techniques to characterize photodiode linearity. DSpace@MIT (Massachusetts Institute of Technology). 1–4.5 indexed citations
4.
Klamkin, Jonathan, Anand Ramaswamy, Leif Johansson, et al.. (2009). Uni-traveling-carrier balanced photodiode with tunable MMI coupler for optimization of source laser RIN suppression. DSpace@MIT (Massachusetts Institute of Technology). 1–4.2 indexed citations
Coldren, L.A.. (2008). Silicon photonics for next generation computing systems. European Conference on Optical Communication.1 indexed citations
7.
Tauke‐Pedretti, Anna, Matthew Dummer, Matthew N. Sysak, et al.. (2007). Monolithic 40 Gbps Separate Absorption and Modulation Mach-Zehnder Wavelength Converter. Optical Fiber Communication Conference.4 indexed citations
8.
Ramaswamy, Anand, Leif Johansson, Jonathan Klamkin, et al.. (2007). Coherent Receiver Based on a Broadband Optical Phase-Lock Loop. Optical Fiber Communication Conference.16 indexed citations
9.
Akulova, Yuliya, G.A. Fish, P. Kozodoy, et al.. (2004). 10 Gb/s Mach-Zehnder modulator integrated with widely-tunable sampled grating DBR laser. Optical Fiber Communication Conference. 1. 395.16 indexed citations
10.
Johansson, Leif, J.S. Barton, L.A. Coldren, & G.A. Fish. (2004). High-speed optical frequency modulation in a monolithically integrated widely-tunable laser-phase modulator. Optical Fiber Communication Conference. 2.2 indexed citations
11.
Mašanović, Milan L., V. Lal, Joseph A. Summers, et al.. (2004). 10 Gbps and 2.5 Gbps error-free operation of a monolithically integrated widely-tunable all-optical wavelength converter with independent phase control output 35 nm tuning range. Optical Fiber Communication Conference. 2.2 indexed citations
12.
Raring, James W., Erik J. Skogen, Leif Johansson, M.N. Sysak, & L.A. Coldren. (2004). Low dispersion penalty at 10 Gb/s, over 75 km, using a quantum-well-intermixed electroabsorption-modulator/widely-tunable laser transmitter. Optical Fiber Communication Conference. 2.5 indexed citations
13.
Raring, James W., Erik J. Skogen, Leif Johansson, & L.A. Coldren. (2004). Enhanced frequency response in buried ridge quantum well intermixed SGDBR laser modulators. Conference on Lasers and Electro-Optics. 1. 1243–1244.2 indexed citations
14.
Abare, A., Steven P. DenBaars, & L.A. Coldren. (2000). Distributed Feedback Laser Diodes Employing Embedded Dielectric Gratings Located above the Active Region. IEICE Transactions on Electronics. 83(4). 560–563.1 indexed citations
15.
Fish, G.A., B. Mason, V. Kaman, et al.. (2000). Characteristics of sampled grating DBR lasers with integrated semicondutor optical amplifiers and electroabsorption modulators. Optical Fiber Communication Conference.6 indexed citations
Sjölund, O., et al.. (1998). Novel integration of microlensed resonant photodetectors and vertical cavity lasers. Conference on Lasers and Electro-Optics.
18.
Wipiejewski, T., et al.. (1996). Molecular beam epitaxy regrowth of top reflectors for multiple wavelength vertical cavity laser arrays. Conference on Lasers and Electro-Optics. 362–363.1 indexed citations
19.
Dagli, Nadir, et al.. (1991). A novel intensity modulator with high on/off ratio over a large optical bandwidth. Conference on Lasers and Electro-Optics.1 indexed citations
20.
Geels, R.S., Ran Yan, J.W. Scott, et al.. (1988). Analysis and design of a novel parallel-driven MQW-DBR surface-emitting diode laser. Conference on Lasers and Electro-Optics.10 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.