Class information for:
Level 1: LONG PERIOD FIBER GRATING//LONG PERIOD GRATING//LONG PERIOD FIBER GRATINGS LPFGS

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
5762 1578 17.2 79%


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
10 4 OPTICS//PHYSICS, PARTICLES & FIELDS//PHYSICS, MULTIDISCIPLINARY 1131262
89 3       OPTICS//OPTICS LETTERS//FIBER LASER 77430
60 2             FIBER BRAGG GRATING//OPTICS//PHOTONIC CRYSTAL FIBER 29150
5762 1                   LONG PERIOD FIBER GRATING//LONG PERIOD GRATING//LONG PERIOD FIBER GRATINGS LPFGS 1578

Terms with highest relevance score


rank Term termType Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 LONG PERIOD FIBER GRATING authKW 3083654 13% 75% 212
2 LONG PERIOD GRATING authKW 2924314 14% 71% 214
3 LONG PERIOD FIBER GRATINGS LPFGS authKW 409420 1% 92% 23
4 RECH PHOTON address 397663 2% 53% 39
5 LONG PERIOD GRATING LPG authKW 355366 2% 61% 30
6 FIBER GRATINGS authKW 302537 4% 23% 67
7 LONG PERIOD FIBER GRATING LPFG authKW 284306 1% 64% 23
8 OPTICAL FIBER FILTERS authKW 232781 2% 32% 38
9 PHOTOELECT FUNCT FILMS address 180091 1% 85% 11
10 ACOUSTOOPTIC MODE COUPLING authKW 174141 1% 100% 9

Web of Science journal categories


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with term
in class
1 Optics 45735 70% 0% 1103
2 Engineering, Electrical & Electronic 5169 34% 0% 544
3 Telecommunications 1737 9% 0% 147
4 Instruments & Instrumentation 1390 10% 0% 158
5 Physics, Applied 1136 20% 0% 309
6 Electrochemistry 300 4% 0% 68
7 Engineering, General 210 3% 0% 52
8 Chemistry, Analytical 123 5% 0% 84
9 Physics, Multidisciplinary 25 4% 0% 58
10 Nanoscience & Nanotechnology 1 1% 0% 20

Address terms


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 RECH PHOTON 397663 2% 53% 39
2 PHOTOELECT FUNCT FILMS 180091 1% 85% 11
3 UOSE 67940 1% 29% 12
4 OPTOELECT FUNCT FILMS 61915 0% 80% 4
5 C INESC TEC TECHNOL SCI 58047 0% 100% 3
6 OPT NETWORKS SYST GRP 58047 0% 100% 3
7 VEHICLE STRUCT CONTROL 58047 0% 100% 3
8 MARINE IND ENGN 48367 0% 50% 5
9 ENGN PHOTON 43339 1% 20% 11
10 MICROELECT OPTOELECT 43156 2% 7% 30

Journals


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 IEEE PHOTONICS TECHNOLOGY LETTERS 26104 9% 1% 148
2 JOURNAL OF LIGHTWAVE TECHNOLOGY 23962 8% 1% 122
3 OPTICS LETTERS 16298 10% 1% 158
4 OPTICS COMMUNICATIONS 11144 8% 0% 123
5 OPTICS EXPRESS 8241 8% 0% 121
6 OPTICAL FIBER TECHNOLOGY 4885 1% 1% 17
7 APPLIED OPTICS 4777 6% 0% 94
8 ELECTRONICS LETTERS 4723 6% 0% 99
9 MEASUREMENT SCIENCE AND TECHNOLOGY 4442 3% 1% 46
10 FIBER AND INTEGRATED OPTICS 3919 1% 2% 13

Author Key Words


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class		 LCSH search Wikipedia search
1 LONG PERIOD FIBER GRATING 3083654 13% 75% 212 Search LONG+PERIOD+FIBER+GRATING Search LONG+PERIOD+FIBER+GRATING
2 LONG PERIOD GRATING 2924314 14% 71% 214 Search LONG+PERIOD+GRATING Search LONG+PERIOD+GRATING
3 LONG PERIOD FIBER GRATINGS LPFGS 409420 1% 92% 23 Search LONG+PERIOD+FIBER+GRATINGS+LPFGS Search LONG+PERIOD+FIBER+GRATINGS+LPFGS
4 LONG PERIOD GRATING LPG 355366 2% 61% 30 Search LONG+PERIOD+GRATING+LPG Search LONG+PERIOD+GRATING+LPG
5 FIBER GRATINGS 302537 4% 23% 67 Search FIBER+GRATINGS Search FIBER+GRATINGS
6 LONG PERIOD FIBER GRATING LPFG 284306 1% 64% 23 Search LONG+PERIOD+FIBER+GRATING+LPFG Search LONG+PERIOD+FIBER+GRATING+LPFG
7 OPTICAL FIBER FILTERS 232781 2% 32% 38 Search OPTICAL+FIBER+FILTERS Search OPTICAL+FIBER+FILTERS
8 ACOUSTOOPTIC MODE COUPLING 174141 1% 100% 9 Search ACOUSTOOPTIC+MODE+COUPLING Search ACOUSTOOPTIC+MODE+COUPLING
9 OPTICAL FIBER DEVICES 128260 3% 12% 55 Search OPTICAL+FIBER+DEVICES Search OPTICAL+FIBER+DEVICES
10 LONG PERIOD GRATINGS LPGS 120553 1% 69% 9 Search LONG+PERIOD+GRATINGS+LPGS Search LONG+PERIOD+GRATINGS+LPGS

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.


Rank Reference # ref. in
cl.		 Shr. of ref. in
cl.		 Citations
1 REGO, G , (2016) ARC-INDUCED LONG PERIOD FIBER GRATINGS.JOURNAL OF SENSORS. VOL. . ISSUE . P. - 102 90% 1
2 WANG, YP , (2010) REVIEW OF LONG PERIOD FIBER GRATINGS WRITTEN BY CO2 LASER.JOURNAL OF APPLIED PHYSICS. VOL. 108. ISSUE 8. P. - 116 70% 50
3 IVANOV, OV , NIKITOV, SA , GULYAEV, YV , (2006) CLADDING MODES OF OPTICAL FIBERS: PROPERTIES AND APPLICATIONS.PHYSICS-USPEKHI. VOL. 49. ISSUE 2. P. 167-191 114 71% 13
4 TAN, SY , YONG, YT , LEE, SC , ABD RAHMAN, F , (2015) REVIEW ON AN ARC-INDUCED LONG-PERIOD FIBER GRATING AND ITS SENSOR APPLICATIONS.JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS. VOL. 29. ISSUE 6. P. 703 -726 65 88% 5
5 JAMES, SW , TATAM, RP , (2003) OPTICAL FIBRE LONG-PERIOD GRATING SENSORS: CHARACTERISTICS AND APPLICATION.MEASUREMENT SCIENCE AND TECHNOLOGY. VOL. 14. ISSUE 5. P. R49 -R61 62 81% 448
6 HUANG, W , LIU, M , SHI, LL , ZHU, T , (2012) SENSING AND DEMODULATION OF SPECIAL LONG-PERIOD FIBER GRATINGS INDUCED BY SCANNING CO2 LASER PULSES.JOURNAL OF SENSORS. VOL. . ISSUE . P. - 55 90% 2
7 ESPOSITO, F , RANJAN, R , CAMPOPIANO, S , IADICICCO, A , (2017) EXPERIMENTAL STUDY OF THE REFRACTIVE INDEX SENSITIVITY IN ARC-INDUCED LONG PERIOD GRATINGS.IEEE PHOTONICS JOURNAL. VOL. 9. ISSUE 1. P. - 38 93% 0
8 RANJAN, R , ESPOSITO, F , IADICICCO, A , STANCALIE, A , SPOREA, D , CAMPOPIANO, S , (2016) COMPARATIVE STUDY OF LONG-PERIOD GRATINGS WRITTEN IN STANDARD AND FLUORINE-DOPED FIBERS BY ELECTRIC ARC DISCHARGE.IEEE SENSORS JOURNAL. VOL. 16. ISSUE 11. P. 4265 -4273 38 86% 0
9 YIN, GL , TANG, J , LIAO, CR , WANG, YP , (2016) AUTOMATIC ARC DISCHARGE TECHNOLOGY FOR INSCRIBING LONG PERIOD FIBER GRATINGS.APPLIED OPTICS. VOL. 55. ISSUE 14. P. 3873 -3878 27 100% 2
10 REGO, G , (2013) A REVIEW OF REFRACTOMETRIC SENSORS BASED ON LONG PERIOD FIBRE GRATINGS.SCIENTIFIC WORLD JOURNAL. VOL. . ISSUE . P. - 46 62% 5

Classes with closest relation at Level 1


Rank Class id link
1 2468 OPTICAL FIBER SENSOR//REFRACTIVE INDEX SENSOR//FIBER OPTIC SENSOR
2 8174 DISPERSION COMPENSATION//GRATINGS IN FIBERS//FIBER BRAGG GRATING
3 6808 REGENERATED GRATINGS//FIBER BRAGG GRATING//BRAGG GRATINGS
4 28482 LOSSY MODE RESONANCES//LOSSY MODE RESONANCES LMRS//LOSSY MODE RESONANCE LMR
5 23675 ABEL INVERSION//ALMOST BERNSTEIN OPERATIONAL MATRIX OF INTEGRATION//ARC FUSION SPLICED FIBERS
6 1689 FIBER BRAGG GRATING//FIBER BRAGG GRATING FBG//FIBER BRAGG GRATING SENSOR
7 32774 OPTICAL FIBER O100//ABSORPTION A100//CROSS SECTIONAL TEMPERATURE PROFILE
8 26446 PL OPTOELECT//MACROBENDING LOSS//MACRO BEND FIBER FILTER
9 11652 SIDE POLISHED FIBER//SIDE POLISHED OPTICAL FIBER//FUSED FIBER COUPLER
10 548 PHOTONIC CRYSTAL FIBER//CONFINEMENT LOSS//PHOTONIC CRYSTAL FIBER PCF

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