Class information for:
Level 1: DISTRIBUTED FEEDBACK LASERS//MICROWAVE PHOTON TECHNOL//SEMICONDUCTOR LASERS

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
1 4 PHYSICS, CONDENSED MATTER//PHYSICS, APPLIED//MATERIALS SCIENCE, MULTIDISCIPLINARY 2188495
64 3       SEMICONDUCTOR LASERS//PHYSICS, APPLIED//PHYSICS, CONDENSED MATTER 89567
174 2             SEMICONDUCTOR LASERS//IEEE JOURNAL OF QUANTUM ELECTRONICS//VERTICAL CAVITY SURFACE EMITTING LASERS 21466
1167 1                   DISTRIBUTED FEEDBACK LASERS//MICROWAVE PHOTON TECHNOL//SEMICONDUCTOR LASERS 2833

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 DISTRIBUTED FEEDBACK LASERS authKW 500090 6% 29% 157
2 MICROWAVE PHOTON TECHNOL address 240229 1% 60% 36
3 SEMICONDUCTOR LASERS authKW 228912 10% 7% 294
4 IEEE JOURNAL OF QUANTUM ELECTRONICS journal 211764 14% 5% 404
5 DISTRIBUTED BRAGG REFLECTOR LASERS authKW 173094 2% 32% 48
6 TUNABLE LASER authKW 170473 3% 16% 94
7 SAMPLED GRATING authKW 146109 1% 77% 17
8 DFB LASER authKW 134360 2% 28% 43
9 DISTRIBUTED FEEDBACK DFB LASERS authKW 128643 2% 26% 45
10 LASER TUNING authKW 114724 2% 20% 51

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Optics 47038 53% 0% 1512
2 Engineering, Electrical & Electronic 42668 71% 0% 2005
3 Physics, Applied 17783 51% 0% 1441
4 Telecommunications 3736 10% 0% 291
5 COMPUTER APPLICATIONS & CYBERNETICS 32 0% 0% 3
6 Crystallography 3 1% 0% 27
7 Education, Scientific Disciplines 1 0% 0% 9
8 Nanoscience & Nanotechnology 0 1% 0% 32
9 Physics, Multidisciplinary -0 2% 0% 54
10 Spectroscopy -3 0% 0% 13

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 MICROWAVE PHOTON TECHNOL 240229 1% 60% 36
2 OPTO GRP INTERET ECON 25025 0% 75% 3
3 TYNDALL CTVR 25025 0% 75% 3
4 DTDCPO 22246 0% 100% 2
5 OPT WIRELESS CONVERGENCE COMPONENT 20019 0% 60% 3
6 INTEGRATED OPTOELECT 15117 1% 7% 19
7 OPTO GROUPEMENT INTERET ECON 14829 0% 67% 2
8 YOKOSUKA ELECT COMMUN S OPTOELE S 14829 0% 67% 2
9 PHOTON WIRELESS DEVICES S 14755 0% 15% 9
10 CHEM ENGN PHYS 14062 0% 14% 9

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 IEEE JOURNAL OF QUANTUM ELECTRONICS 211764 14% 5% 404
2 IEEE PHOTONICS TECHNOLOGY LETTERS 101792 14% 2% 389
3 ELECTRONICS LETTERS 96027 21% 1% 585
4 IEE PROCEEDINGS-J OPTOELECTRONICS 45351 2% 9% 44
5 JOURNAL OF LIGHTWAVE TECHNOLOGY 24788 6% 1% 167
6 IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS 23574 3% 2% 94
7 IEE PROCEEDINGS-OPTOELECTRONICS 11269 1% 4% 29
8 OPTICAL AND QUANTUM ELECTRONICS 4589 1% 1% 42
9 APPLIED PHYSICS LETTERS 4535 8% 0% 220
10 INTERNATIONAL JOURNAL OF OPTOELECTRONICS 4007 0% 5% 8

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 DISTRIBUTED FEEDBACK LASERS 500090 6% 29% 157 Search DISTRIBUTED+FEEDBACK+LASERS Search DISTRIBUTED+FEEDBACK+LASERS
2 SEMICONDUCTOR LASERS 228912 10% 7% 294 Search SEMICONDUCTOR+LASERS Search SEMICONDUCTOR+LASERS
3 DISTRIBUTED BRAGG REFLECTOR LASERS 173094 2% 32% 48 Search DISTRIBUTED+BRAGG+REFLECTOR+LASERS Search DISTRIBUTED+BRAGG+REFLECTOR+LASERS
4 TUNABLE LASER 170473 3% 16% 94 Search TUNABLE+LASER Search TUNABLE+LASER
5 SAMPLED GRATING 146109 1% 77% 17 Search SAMPLED+GRATING Search SAMPLED+GRATING
6 DFB LASER 134360 2% 28% 43 Search DFB+LASER Search DFB+LASER
7 DISTRIBUTED FEEDBACK DFB LASERS 128643 2% 26% 45 Search DISTRIBUTED+FEEDBACK+DFB+LASERS Search DISTRIBUTED+FEEDBACK+DFB+LASERS
8 LASER TUNING 114724 2% 20% 51 Search LASER+TUNING Search LASER+TUNING
9 GAIN COUPLING 80076 0% 60% 12 Search GAIN+COUPLING Search GAIN+COUPLING
10 GAIN COUPLED DFB LASER 69512 0% 63% 10 Search GAIN+COUPLED+DFB+LASER Search GAIN+COUPLED+DFB+LASER

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 21832 FEEDBACK NOISE//MODE COMPETITION PHENOMENA//OPTICAL FEEDBACK NOISE
2 35269 EXTERNAL CAVITY SEMICONDUCTOR LASERS ECSLS//FLAT FIBRE//FIBER GRATING LASER
3 36291 DUAL WAVELENGTH OPERATION//AG OPTOELEKT BAUELEMENTE WERKSTOFFE//ANTIMONY PHOSPHATE GLASS
4 32314 MEMBRANE LASER//GAINASP INP//DISTRIBUTED REFLECTOR LASER
5 28128 DIRECTLY MODULATED LASER//COMPENSATING DEVICE//FM AM CONVERSION
6 33560 STRAIN INDUCED OPTICAL WAVEGUIDE//DIEE INFM//FOURIER TRANSFORM FT METHOD
7 19471 SELF SUSTAINED PULSATION//SILC BLD//RISA STRUCTURE
8 2513 QUANTUM WELL LASERS//SEMICONDUCTOR LASERS//IEEE JOURNAL OF QUANTUM ELECTRONICS
9 18956 ADV TELECOMMUN QUANTUM ELECT//EXCESS QUANTUM NOISE//SPATIAL FRACTALS
10 11784 OPTICAL PHASE LOCKED LOOPS//JOURNAL OF LIGHTWAVE TECHNOLOGY//OPTICAL PHASE LOCKED LOOPS OPLLS

Go to start page