Class information for:
Level 1: MODULATION FORMAT//DIFFERENTIAL PHASE SHIFT KEYING DPSK//FORMAT CONVERSION

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
6898 1431 15.2 59%


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
6898 1                   MODULATION FORMAT//DIFFERENTIAL PHASE SHIFT KEYING DPSK//FORMAT CONVERSION 1431

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 MODULATION FORMAT authKW 908557 6% 48% 89
2 DIFFERENTIAL PHASE SHIFT KEYING DPSK authKW 848323 7% 38% 104
3 FORMAT CONVERSION authKW 626157 3% 65% 45
4 DUOBINARY authKW 531187 3% 66% 38
5 OPTICAL FIBER COMMUNICATION authKW 328852 13% 8% 182
6 RETURN TO ZERO RZ authKW 304780 2% 48% 30
7 DUOBINARY MODULATION authKW 261372 1% 88% 14
8 OPTICAL DUOBINARY authKW 225365 1% 81% 13
9 DIFFERENTIAL QUADRATURE PHASE SHIFT KEYING DQPSK authKW 211868 2% 41% 24
10 NONLINEAR PHASE NOISE authKW 202681 1% 50% 19

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 49351 76% 0% 1089
2 Engineering, Electrical & Electronic 18859 66% 0% 946
3 Telecommunications 12505 25% 0% 358
4 Physics, Applied 2743 30% 0% 425
5 Architecture 8 0% 0% 2
6 Computer Science, Information Systems 0 1% 0% 11
7 Music 0 0% 0% 1
8 Engineering, Ocean 0 0% 0% 1
9 Computer Science, Hardware & Architecture -0 0% 0% 3
10 Engineering, Aerospace -0 0% 0% 2

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 PL ELE OMAGNET TELECOMMUN GRP 104546 0% 70% 7
2 LEHRSTUHL NACHRICHEN UBERTRAGUNGSTECH 64010 0% 100% 3
3 CARRIER PROD 38404 0% 60% 3
4 OPT COMMUN GRP SUPER TECN 33388 0% 26% 6
5 LUCENT TECHNOL 29605 5% 2% 67
6 CHAIR COMMUN 29534 0% 23% 6
7 NETWORK INNOVAT S 27405 1% 6% 20
8 NETWORKS DEVICES S 24000 0% 38% 3
9 ADV TECHNOL WIRELINE NETWORKING BUSINESS UNI 21337 0% 100% 1
10 ALCATEL STAND ELEKTR LORENZ AKTIENGESELL 21337 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 166781 25% 2% 355
2 JOURNAL OF LIGHTWAVE TECHNOLOGY 84791 15% 2% 218
3 OPTICAL FIBER TECHNOLOGY 13628 2% 2% 27
4 ELECTRONICS LETTERS 10878 10% 0% 142
5 OPTICS EXPRESS 8660 8% 0% 118
6 IET OPTOELECTRONICS 7916 1% 3% 12
7 OPTICS COMMUNICATIONS 5554 6% 0% 83
8 IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS 5039 2% 1% 31
9 IEE PROCEEDINGS-OPTOELECTRONICS 3696 1% 1% 12
10 CHINESE OPTICS LETTERS 3630 2% 1% 22

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 MODULATION FORMAT 908557 6% 48% 89 Search MODULATION+FORMAT Search MODULATION+FORMAT
2 DIFFERENTIAL PHASE SHIFT KEYING DPSK 848323 7% 38% 104 Search DIFFERENTIAL+PHASE+SHIFT+KEYING+DPSK Search DIFFERENTIAL+PHASE+SHIFT+KEYING+DPSK
3 FORMAT CONVERSION 626157 3% 65% 45 Search FORMAT+CONVERSION Search FORMAT+CONVERSION
4 DUOBINARY 531187 3% 66% 38 Search DUOBINARY Search DUOBINARY
5 OPTICAL FIBER COMMUNICATION 328852 13% 8% 182 Search OPTICAL+FIBER+COMMUNICATION Search OPTICAL+FIBER+COMMUNICATION
6 RETURN TO ZERO RZ 304780 2% 48% 30 Search RETURN+TO+ZERO+RZ Search RETURN+TO+ZERO+RZ
7 DUOBINARY MODULATION 261372 1% 88% 14 Search DUOBINARY+MODULATION Search DUOBINARY+MODULATION
8 OPTICAL DUOBINARY 225365 1% 81% 13 Search OPTICAL+DUOBINARY Search OPTICAL+DUOBINARY
9 DIFFERENTIAL QUADRATURE PHASE SHIFT KEYING DQPSK 211868 2% 41% 24 Search DIFFERENTIAL+QUADRATURE+PHASE+SHIFT+KEYING+DQPSK Search DIFFERENTIAL+QUADRATURE+PHASE+SHIFT+KEYING+DQPSK
10 NONLINEAR PHASE NOISE 202681 1% 50% 19 Search NONLINEAR+PHASE+NOISE Search NONLINEAR+PHASE+NOISE

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 WINZER, PJ , ESSIAMBRE, RJ , (2006) ADVANCED MODULATION FORMATS FOR HIGH-CAPACITY OPTICAL TRANSPORT NETWORKS.JOURNAL OF LIGHTWAVE TECHNOLOGY. VOL. 24. ISSUE 12. P. 4711 -4728 69 77% 256
2 WINZER, PJ , ESSIAMBRE, RJ , (2006) ADVANCED OPTICAL MODULATION FORMATS.PROCEEDINGS OF THE IEEE. VOL. 94. ISSUE 5. P. 952 -985 83 58% 288
3 GNAUCK, AH , WINZER, PJ , (2005) OPTICAL PHASE-SHIFT-KEYED TRANSMISSION.JOURNAL OF LIGHTWAVE TECHNOLOGY. VOL. 23. ISSUE 1. P. 115-130 32 76% 562
4 CAO, WH , (2016) LARGE PREDISPERSION FOR REDUCTION OF INTRACHANNEL NONLINEAR IMPAIRMENTS IN STRONGLY DISPERSION-MANAGED TRANSMISSIONS.OPTICAL FIBER TECHNOLOGY. VOL. 29. ISSUE . P. 13 -19 31 82% 0
5 VACONDIO, F , GHAZISAEIDI, A , BONONI, A , RUSCH, LA , (2009) DQPSK: WHEN IS A NARROW FILTER RECEIVER GOOD ENOUGH?.JOURNAL OF LIGHTWAVE TECHNOLOGY. VOL. 27. ISSUE 22. P. 5106-5114 27 93% 2
6 DEMIR, A , (2007) NONLINEAR PHASE NOISE IN OPTICAL-FIBER-COMMUNICATION SYSTEMS.JOURNAL OF LIGHTWAVE TECHNOLOGY. VOL. 25. ISSUE 8. P. 2002-2032 39 63% 34
7 KUMAR, S , LIU, L , (2007) REDUCTION OF NONLINEAR PHASE NOISE USING OPTICAL PHASE CONJUGATION IN QUASI-LINEAR OPTICAL TRANSMISSION SYSTEMS.OPTICS EXPRESS. VOL. 15. ISSUE 5. P. 2166 -2177 24 86% 16
8 COELHO, LD , MOLLE, L , GROSS, D , HANIK, N , FREUND, R , CASPAR, C , SCHMIDT, ED , SPINNLER, B , (2009) MODELING NONLINEAR PHASE NOISE IN DIFFERENTIALLY PHASE-MODULATED OPTICAL COMMUNICATION SYSTEMS.OPTICS EXPRESS. VOL. 17. ISSUE 5. P. 3226 -3241 23 85% 7
9 LAU, APT , RABBANI, S , KAHN, JM , (2008) ON THE STATISTICS OF INTRACHANNEL FOUR-WAVE MIXING IN PHASE-MODULATED OPTICAL COMMUNICATION SYSTEMS.JOURNAL OF LIGHTWAVE TECHNOLOGY. VOL. 26. ISSUE 13-16. P. 2128-2135 22 88% 10
10 ZHANG, Q , MENYUK, CR , BAJRACHARYA, R , HAYEE, MI , HUANG, HW , MINER, A , (2010) ON THE GAUSSIAN APPROXIMATION AND MARGIN MEASUREMENTS FOR OPTICAL DPSK SYSTEMS WITH BALANCED DETECTION.JOURNAL OF LIGHTWAVE TECHNOLOGY. VOL. 28. ISSUE 12. P. 1752-1760 19 95% 1

Classes with closest relation at Level 1


Rank Class id link
1 1325 COHERENT DETECTION//COHERENT COMMUNICATIONS//OPT NETWORKS GRP
2 5090 FOUR WAVE MIXING//FOUR WAVE MIXING FWM//OPTICAL PARAMETRIC AMPLIFIER
3 3533 SOLITON TRANSMISSION//DISPERSION MANAGEMENT//DISPERSION MANAGED SOLITONS
4 13244 ELECTROABSORPTION MODULATORS//DIRECTLY MODULATED LASER//INGAALAS
5 18396 OPTICAL PERFORMANCE MONITORING//OPTICAL PERFORMANCE MONITORING OPM//OPTICAL SIGNAL TO NOISE RATIO OSNR
6 7490 POLARIZATION MODE DISPERSION PMD//POLARIZATION MODE DISPERSION//OPTICAL FIBER POLARIZATION
7 10876 JOURNAL OF LIGHTWAVE TECHNOLOGY//OPTICAL PHASE LOCKED LOOPS//OPTICAL PHASE LOCKED LOOPS OPLLS
8 17870 HOMODYNE CROSSTALK//OPTICAL CROSSTALK//BIDIRECTIONAL TRANSMISSION
9 5222 CLOCK RECOVERY//ALL OPTICAL CLOCK RECOVERY//NONLINEAR OPTICAL LOOP MIRROR
10 2970 SEMICONDUCTOR OPTICAL AMPLIFIER//WAVELENGTH CONVERSION//SEMICONDUCTOR OPTICAL AMPLIFIER SOA

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