Class information for:
Level 1: FIBER AMPLIFIER//FIBER LASER//DOUBLE CLAD FIBER

Basic class information
Bar chart of Publication_year

Last years might be incomplete

Hierarchy of classes
The table includes all classes above and classes immediately below the current class.


Cluster id Level Cluster label #P
13 4 PHYSICS, PARTICLES & FIELDS//PHYSICS, NUCLEAR//OPTICS 1062565
33 3       OPTICS//IEEE PHOTONICS TECHNOLOGY LETTERS//JOURNAL OF LIGHTWAVE TECHNOLOGY 112980
783 2             FIBER LASER//OPTICS//FIBER AMPLIFIER 12507
2813 1                   FIBER AMPLIFIER//FIBER LASER//DOUBLE CLAD FIBER 2170

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 FIBER AMPLIFIER authKW 536606 5% 35% 106
2 FIBER LASER authKW 434367 12% 11% 266
3 DOUBLE CLAD FIBER authKW 374735 2% 65% 40
4 LARGE MODE AREA authKW 265482 2% 52% 35
5 PHOTON ELECT address 148329 4% 13% 80
6 OPTOELECT SCI ENGN address 136656 7% 6% 151
7 ECE COMSET address 130699 0% 100% 9
8 DOUBLE CLAD FIBER LASER authKW 111545 1% 59% 13
9 HIGH POWER FIBER LASER authKW 106201 1% 46% 16
10 OPTICAL FIBER AMPLIFIERS authKW 105454 3% 13% 57

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Optics 89684 83% 0% 1807
2 Physics, Applied 2626 24% 0% 528
3 Engineering, Electrical & Electronic 1779 19% 0% 409
4 Telecommunications 584 5% 0% 109
5 Materials Science, Ceramics 189 2% 0% 48
6 Physics, Multidisciplinary 109 5% 0% 109
7 Materials Science, Multidisciplinary 4 5% 0% 110
8 Engineering, Aerospace -2 0% 0% 2
9 Physics, Mathematical -5 0% 0% 7
10 Engineering, General -6 0% 0% 4

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 PHOTON ELECT 148329 4% 13% 80
2 OPTOELECT SCI ENGN 136656 7% 6% 151
3 ECE COMSET 130699 0% 100% 9
4 SHANGHAI SOLID STATE LASER PLICAT 88292 1% 41% 15
5 FIBER OPT 79377 3% 8% 67
6 ADV ELECT LASERS BRANCH 60507 0% 83% 5
7 CELIA PALA 60507 0% 83% 5
8 PROV SOLID LASER TECHNOL PLICAT 58088 0% 100% 4
9 OPTOELECT 44238 7% 2% 159
10 SHANGHAI OPT FINE MECH 38490 6% 2% 124

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 OPTICS EXPRESS 64111 18% 1% 396
2 OPTICS LETTERS 32759 12% 1% 261
3 LASER PHYSICS LETTERS 23977 3% 3% 64
4 LASER PHYSICS 21090 4% 2% 82
5 CHINESE OPTICS LETTERS 13173 2% 2% 52
6 OPTICAL FIBER TECHNOLOGY 9753 1% 2% 29
7 LASER FOCUS WORLD 8640 1% 2% 31
8 IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS 7993 2% 1% 48
9 OPTICS COMMUNICATIONS 7375 5% 0% 117
10 JOURNAL OF LIGHTWAVE TECHNOLOGY 6466 3% 1% 75

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 FIBER AMPLIFIER 536606 5% 35% 106 Search FIBER+AMPLIFIER Search FIBER+AMPLIFIER
2 FIBER LASER 434367 12% 11% 266 Search FIBER+LASER Search FIBER+LASER
3 DOUBLE CLAD FIBER 374735 2% 65% 40 Search DOUBLE+CLAD+FIBER Search DOUBLE+CLAD+FIBER
4 LARGE MODE AREA 265482 2% 52% 35 Search LARGE+MODE+AREA Search LARGE+MODE+AREA
5 DOUBLE CLAD FIBER LASER 111545 1% 59% 13 Search DOUBLE+CLAD+FIBER+LASER Search DOUBLE+CLAD+FIBER+LASER
6 HIGH POWER FIBER LASER 106201 1% 46% 16 Search HIGH+POWER+FIBER+LASER Search HIGH+POWER+FIBER+LASER
7 OPTICAL FIBER AMPLIFIERS 105454 3% 13% 57 Search OPTICAL+FIBER+AMPLIFIERS Search OPTICAL+FIBER+AMPLIFIERS
8 YTTERBIUM DOPED 103723 0% 71% 10 Search YTTERBIUM+DOPED Search YTTERBIUM+DOPED
9 YTTERBIUM DOPED FIBER 94381 1% 50% 13 Search YTTERBIUM+DOPED+FIBER Search YTTERBIUM+DOPED+FIBER
10 PUMP ABSORPTION 88946 0% 88% 7 Search PUMP+ABSORPTION Search PUMP+ABSORPTION

Core articles
The table includes core articles in the class. The following variables is taken into account for the relevance score of an article in a cluster c:
(1) Number of references referring to publications in the class.
(2) Share of total number of active references referring to publications in the class.
(3) Age of the article. New articles get higher score than old articles.
(4) Citation rate, normalized to year.

Classes with closest relation at Level 1


rank cluster_id2 link
1 21510 ACTIVE Q SWITCH//Q SWITCHED LASERS//FIBER SATURABLE ABSORBER
2 11048 COHERENT BEAM COMBINING//COHERENT COMBINING//COHERENT BEAM COMBINATION
3 6376 MAT HIGH POWER LASER//27 MU M EMISSION//20 MU M EMISSION
4 5749 ERBIUM DOPED FIBER AMPLIFIER//GAIN CLAMPING//OPTICAL AMPLIFIERS
5 653 PHOTONIC CRYSTAL FIBER//CONFINEMENT LOSS//PHOTONIC CRYSTAL FIBER PCF
6 2246 MULTIWAVELENGTH FIBER LASER//FIBER LASER//SINGLE LONGITUDINAL MODE
7 1062 FIBER LASER//MODE LOCKING//SATURABLE ABSORBER
8 24900 PL OPTOELECT//PC COMMUNICATION//MACRO BEND FIBER FILTER
9 9285 RAMAN AMPLIFIER//FIBER RAMAN AMPLIFIER//RAMAN FIBER AMPLIFIER
10 14067 CSMFO GRP//WAVEGUIDE AMPLIFIER//OPTICAL WAVEGUIDE AMPLIFIER

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