Class information for:
Level 1: OPTICAL FREQUENCY COMB OFC//OPTICAL FREQUENCY COMB//RECIRCULATING FREQUENCY SHIFTER

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
78 2             IEEE PHOTONICS TECHNOLOGY LETTERS//JOURNAL OF LIGHTWAVE TECHNOLOGY//OPTICAL FIBER COMMUNICATION 27533
26736 1                   OPTICAL FREQUENCY COMB OFC//OPTICAL FREQUENCY COMB//RECIRCULATING FREQUENCY SHIFTER 267

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 OPTICAL FREQUENCY COMB OFC authKW 1020200 4% 79% 11
2 OPTICAL FREQUENCY COMB authKW 944881 15% 21% 39
3 RECIRCULATING FREQUENCY SHIFTER authKW 368872 2% 63% 5
4 RECIRCULATING FREQUENCY SHIFTER RFS authKW 354121 1% 100% 3
5 OPTICAL FREQUENCY COMB GENERATION authKW 269803 1% 57% 4
6 OPTICAL CARRIER REGENERATION authKW 265589 1% 75% 3
7 PILOT PHOTON LTD address 265589 1% 75% 3
8 OPTICAL COMB authKW 240989 3% 29% 7
9 DUAL PARALLEL MODULATOR authKW 236080 1% 100% 2
10 MULTICARRIER GENERATION authKW 236080 1% 100% 2

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Optics 11409 85% 0% 226
2 Engineering, Electrical & Electronic 1226 40% 0% 108
3 Telecommunications 704 14% 0% 38
4 Physics, Applied 323 24% 0% 65
5 Computer Science, Information Systems 6 2% 0% 5
6 Computer Science, Hardware & Architecture 2 1% 0% 2
7 Physics, Atomic, Molecular & Chemical 0 2% 0% 5
8 Physics, Multidisciplinary 0 2% 0% 6
9 Instruments & Instrumentation 0 1% 0% 3
10 Engineering, General -0 0% 0% 1

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 PILOT PHOTON LTD 265589 1% 75% 3
2 601 HUANGPU RD WEST 118040 0% 100% 1
3 OPT COMMUN SCI TECHNOL SHANDONG PROVINE 118040 0% 100% 1
4 OPT FREQUENCY MEASURMENTS TIME FREQUENCY 118040 0% 100% 1
5 COMMUN SCI ENGN 100129 5% 6% 14
6 PILOT PHOTON 94430 1% 40% 2
7 RINCE 72481 4% 6% 11
8 INVENT 62948 1% 13% 4
9 ICORPQUANTUM ENTAGLEMENT PROJECT 59019 0% 50% 1
10 OPTIC COMMUN GRP 59019 0% 50% 1

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 IEEE PHOTONICS TECHNOLOGY LETTERS 9249 13% 0% 36
2 CHINESE OPTICS LETTERS 6718 5% 0% 13
3 JOURNAL OF LIGHTWAVE TECHNOLOGY 5457 9% 0% 24
4 OPTICS LETTERS 5074 13% 0% 36
5 OPTICS EXPRESS 2771 11% 0% 29
6 IEEE PHOTONICS JOURNAL 1738 2% 0% 6
7 OPTICS COMMUNICATIONS 1428 7% 0% 18
8 OPTICAL ENGINEERING 1374 5% 0% 13
9 OPTICAL SWITCHING AND NETWORKING 1322 1% 1% 2
10 ELECTRONICS LETTERS 1050 7% 0% 19

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 OPTICAL FREQUENCY COMB OFC 1020200 4% 79% 11 Search OPTICAL+FREQUENCY+COMB+OFC Search OPTICAL+FREQUENCY+COMB+OFC
2 OPTICAL FREQUENCY COMB 944881 15% 21% 39 Search OPTICAL+FREQUENCY+COMB Search OPTICAL+FREQUENCY+COMB
3 RECIRCULATING FREQUENCY SHIFTER 368872 2% 63% 5 Search RECIRCULATING+FREQUENCY+SHIFTER Search RECIRCULATING+FREQUENCY+SHIFTER
4 RECIRCULATING FREQUENCY SHIFTER RFS 354121 1% 100% 3 Search RECIRCULATING+FREQUENCY+SHIFTER+RFS Search RECIRCULATING+FREQUENCY+SHIFTER+RFS
5 OPTICAL FREQUENCY COMB GENERATION 269803 1% 57% 4 Search OPTICAL+FREQUENCY+COMB+GENERATION Search OPTICAL+FREQUENCY+COMB+GENERATION
6 OPTICAL CARRIER REGENERATION 265589 1% 75% 3 Search OPTICAL+CARRIER+REGENERATION Search OPTICAL+CARRIER+REGENERATION
7 OPTICAL COMB 240989 3% 29% 7 Search OPTICAL+COMB Search OPTICAL+COMB
8 DUAL PARALLEL MODULATOR 236080 1% 100% 2 Search DUAL+PARALLEL+MODULATOR Search DUAL+PARALLEL+MODULATOR
9 MULTICARRIER GENERATION 236080 1% 100% 2 Search MULTICARRIER+GENERATION Search MULTICARRIER+GENERATION
10 PULSED SERRODYNE MODULATION 236080 1% 100% 2 Search PULSED+SERRODYNE+MODULATION Search PULSED+SERRODYNE+MODULATION

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 7142 OPTICAL PULSE SHAPING//MICROWAVE PHOTON//TEMPORAL TALBOT EFFECT
2 5806 FREQUENCY COMB//OPTICAL FREQUENCY COMB//OPTICAL FREQUENCY METROLOGY
3 1032 COHERENT DETECTION//COHERENT COMMUNICATIONS//OPT NETWORKS GRP
4 23048 OPTOELECTRONIC OSCILLATOR//OPTOELECTRONIC OSCILLATOR OEO//MICROWAVE GENERATION
5 1991 RADIO OVER FIBER ROF//RADIO OVER FIBER//MICROWAVE PHOTONICS
6 6567 MICROWAVE PHOTONICS//MICROWAVE PHOTONIC FILTER//TRUE TIME DELAY
7 23365 PHOTONIC SAMPLING//TIME STRETCH//OPTICAL QUANTIZATION
8 5902 CLOCK RECOVERY//ALL OPTICAL CLOCK RECOVERY//NONLINEAR OPTICAL LOOP MIRROR
9 12891 OPTICAL INJECTION//INJECTION LOCKING//POLARIZATION BISTABILITY
10 9079 MODE LOCKED LASERS//OPTICAL PULSE GENERATION//SEMICONDUCTOR LASERS

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