Class information for:
Level 1: RAMAN AMPLIFIER//FIBER RAMAN AMPLIFIER//RAMAN FIBER AMPLIFIER

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
9062 1190 14.1 55%


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
185 3       IEEE PHOTONICS TECHNOLOGY LETTERS//OPTICS//JOURNAL OF LIGHTWAVE TECHNOLOGY 56126
110 2             IEEE PHOTONICS TECHNOLOGY LETTERS//JOURNAL OF LIGHTWAVE TECHNOLOGY//OPTICAL FIBER COMMUNICATION 25200
9062 1                   RAMAN AMPLIFIER//FIBER RAMAN AMPLIFIER//RAMAN FIBER AMPLIFIER 1190

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 RAMAN AMPLIFIER authKW 1216392 7% 55% 86
2 FIBER RAMAN AMPLIFIER authKW 747352 3% 79% 37
3 RAMAN FIBER AMPLIFIER authKW 456200 2% 66% 27
4 RAMAN AMPLIFICATION authKW 428175 4% 38% 44
5 RAMAN FIBER LASER authKW 386823 2% 54% 28
6 DISTRIBUTED RAMAN AMPLIFIER authKW 274902 1% 71% 15
7 OPTICAL FIBER AMPLIFIERS authKW 260475 6% 15% 67
8 PHOSPHOSILICATE FIBER authKW 182458 1% 89% 8
9 FIBER RAMAN AMPLIFIERS FRAS authKW 179609 1% 100% 7
10 DISTRIBUTED RAMAN AMPLIFICATION authKW 160589 1% 48% 13

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 34592 70% 0% 833
2 Engineering, Electrical & Electronic 7613 47% 0% 559
3 Telecommunications 3331 14% 0% 172
4 Physics, Applied 1388 24% 0% 285
5 Physics, Multidisciplinary 84 6% 0% 67
6 Spectroscopy 2 1% 0% 13
7 Materials Science, Textiles 0 0% 0% 2
8 Materials Science, Ceramics 0 0% 0% 5
9 History & Philosophy of Science -0 0% 0% 1
10 Computer Science, Information Systems -0 1% 0% 6

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 NAZL RETI FOTON 64141 0% 50% 5
2 FEMTOSECOND OPT GRP 63532 2% 12% 21
3 ADV COMP SIMULATING AXL 51317 0% 100% 2
4 SYST TESTING GRP 51317 0% 100% 2
5 TM DEV SDN BHD 51317 0% 100% 2
6 OPT COMMUN SYST 49327 1% 19% 10
7 ADV NETWORKS GRP 65 25658 0% 100% 1
8 ADV TECHNOL OPT NETWORKS 25658 0% 100% 1
9 ARBEITSBEREICH OPT KOMMUNIKAT TECH 2 03 25658 0% 100% 1
10 AUSTRALIAN PHOTON CRC 206 25658 0% 100% 1

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 29289 11% 1% 136
2 JOURNAL OF LIGHTWAVE TECHNOLOGY 26828 9% 1% 112
3 ELECTRONICS LETTERS 13325 12% 0% 143
4 OPTICS COMMUNICATIONS 12745 10% 0% 114
5 OPTICS EXPRESS 5002 7% 0% 82
6 OPTICS LETTERS 4185 6% 0% 70
7 FIBER AND INTEGRATED OPTICS 3723 1% 1% 11
8 OPTICAL FIBER TECHNOLOGY 3226 1% 1% 12
9 JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS 2212 3% 0% 31
10 TELECOMMUNICATIONS AND RADIO ENGINEERING 1692 0% 2% 3

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 RAMAN AMPLIFIER 1216392 7% 55% 86 Search RAMAN+AMPLIFIER Search RAMAN+AMPLIFIER
2 FIBER RAMAN AMPLIFIER 747352 3% 79% 37 Search FIBER+RAMAN+AMPLIFIER Search FIBER+RAMAN+AMPLIFIER
3 RAMAN FIBER AMPLIFIER 456200 2% 66% 27 Search RAMAN+FIBER+AMPLIFIER Search RAMAN+FIBER+AMPLIFIER
4 RAMAN AMPLIFICATION 428175 4% 38% 44 Search RAMAN+AMPLIFICATION Search RAMAN+AMPLIFICATION
5 RAMAN FIBER LASER 386823 2% 54% 28 Search RAMAN+FIBER+LASER Search RAMAN+FIBER+LASER
6 DISTRIBUTED RAMAN AMPLIFIER 274902 1% 71% 15 Search DISTRIBUTED+RAMAN+AMPLIFIER Search DISTRIBUTED+RAMAN+AMPLIFIER
7 OPTICAL FIBER AMPLIFIERS 260475 6% 15% 67 Search OPTICAL+FIBER+AMPLIFIERS Search OPTICAL+FIBER+AMPLIFIERS
8 PHOSPHOSILICATE FIBER 182458 1% 89% 8 Search PHOSPHOSILICATE+FIBER Search PHOSPHOSILICATE+FIBER
9 FIBER RAMAN AMPLIFIERS FRAS 179609 1% 100% 7 Search FIBER+RAMAN+AMPLIFIERS+FRAS Search FIBER+RAMAN+AMPLIFIERS+FRAS
10 DISTRIBUTED RAMAN AMPLIFICATION 160589 1% 48% 13 Search DISTRIBUTED+RAMAN+AMPLIFICATION Search DISTRIBUTED+RAMAN+AMPLIFICATION

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 KALAVALLY, V , RUKHLENKO, ID , PREMARATNE, M , WIN, T , (2009) ANALYTICAL STUDY OF RIN TRANSFER IN PULSE-PUMPED RAMAN AMPLIFIERS.JOURNAL OF LIGHTWAVE TECHNOLOGY. VOL. 27. ISSUE 20. P. 4536 -4543 31 94% 2
2 KALAVALLY, V , RUKHLENKO, ID , PREMARATNE, M , WIN, T , (2010) MULTIPATH INTERFERENCE IN PULSE-PUMPED FIBER RAMAN AMPLIFIERS: ANALYTICAL APPROACH.JOURNAL OF LIGHTWAVE TECHNOLOGY. VOL. 28. ISSUE 18. P. 2701-2707 27 100% 2
3 KALAVALLY, V , RUKHLENKO, ID , PREMARATNE, M , (2012) COMBINED EFFECT OF ASE AND DRBS ON NOISE IN PULSE-PUMPED FIBER RAMAN AMPLIFIERS.JOURNAL OF LIGHTWAVE TECHNOLOGY. VOL. 30. ISSUE 18. P. 2983-2987 25 100% 0
4 JIANG, HM , XIE, K , WANG, YF , (2010) PUMP SCHEME FOR GAIN-FLATTENED RAMAN FIBER AMPLIFIERS USING IMPROVED PARTICLE SWARM OPTIMIZATION AND MODIFIED SHOOTING ALGORITHM.OPTICS EXPRESS. VOL. 18. ISSUE 11. P. 11033 -11045 24 92% 3
5 LIU, XM , CHEN, J , LU, C , ZHOU, XQ , (2004) OPTIMIZING GAIN PROFILE AND NOISE PERFORMANCE FOR DISTRIBUTED FIBER RAMAN AMPLIFIERS.OPTICS EXPRESS. VOL. 12. ISSUE 24. P. 6053-6666 25 100% 17
6 BROMAGE, J , (2004) RAMAN AMPLIFICATION FOR FIBER COMMUNICATIONS SYSTEMS.JOURNAL OF LIGHTWAVE TECHNOLOGY. VOL. 22. ISSUE 1. P. 79-93 25 69% 202
7 PELOUCH, WS , (2016) RAMAN AMPLIFICATION: AN ENABLING TECHNOLOGY FOR LONG-HAUL COHERENT TRANSMISSION SYSTEMS.JOURNAL OF LIGHTWAVE TECHNOLOGY. VOL. 34. ISSUE 1. P. 6 -19 20 74% 1
8 CANI, SPN , CALMON, LD , PONTES, MJ , RIBEIRO, MRN , SEGATTO, MEV , CARTAXO, AVT , (2009) AN ANALYTICAL APPROXIMATED SOLUTION FOR THE GAIN OF BROADBAND RAMAN AMPLIFIERS WITH MULTIPLE COUNTER-PUMPS.JOURNAL OF LIGHTWAVE TECHNOLOGY. VOL. 27. ISSUE 5-8. P. 944 -951 19 95% 12
9 LIU, XM , LEE, B , (2003) A FAST AND STABLE METHOD FOR RAMAN AMPLIFIER PROPAGATION EQUATIONS.OPTICS EXPRESS. VOL. 11. ISSUE 18. P. 2163 -2176 29 73% 24
10 RANDOUX, S , BECK, G , ANQUEZ, F , MELIN, G , BIGOT, L , DOUAY, M , SURET, P , (2009) GRATING-FREE AND BRAGG-GRATING-BASED RAMAN LASERS MADE WITH HIGHLY NONLINEAR PHOTONIC CRYSTAL FIBERS.JOURNAL OF LIGHTWAVE TECHNOLOGY. VOL. 27. ISSUE 11. P. 1580-1589 27 68% 2

Classes with closest relation at Level 1


Rank Class id link
1 4920 ERBIUM DOPED FIBER AMPLIFIER//GAIN CLAMPING//OPTICAL AMPLIFIERS
2 35208 FIBER FUSE PHENOMENON//FIBER FUSE//OPTICAL FUSE
3 5090 FOUR WAVE MIXING//FOUR WAVE MIXING FWM//OPTICAL PARAMETRIC AMPLIFIER
4 16043 MODULATION INSTABILITY//LEFT HANDED WAVES//SECOND ORDER NONLINEAR DISPERSION
5 3533 SOLITON TRANSMISSION//DISPERSION MANAGEMENT//DISPERSION MANAGED SOLITONS
6 1878 FIBER LASER//DOUBLE CLAD FIBER//FIBER AMPLIFIER
7 6898 MODULATION FORMAT//DIFFERENTIAL PHASE SHIFT KEYING DPSK//FORMAT CONVERSION
8 3400 SUPERCONTINUUM GENERATION//SUPERCONTINUUM//ADV PHOTON TECHNOL
9 9621 RANDOM LASER//RANDOM LASING//NANOOPT MESOSCOP OPT
10 13481 REVIEW OF THE ELECTRICAL COMMUNICATIONS LABORATORIES//IBARAKI ELECT COMMUN S TRANSMISS LINE//HEAVILY DOPED FIBRES

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