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

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
3223 2034 14.6 70%


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
372 2             SEMICONDUCTOR LASERS//IEEE JOURNAL OF QUANTUM ELECTRONICS//VERTICAL CAVITY SURFACE EMITTING LASERS 17248
3223 1                   DISTRIBUTED FEEDBACK LASERS//MICROWAVE PHOTON TECHNOL//TUNABLE LASER 2034

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 DISTRIBUTED FEEDBACK LASERS authKW 611799 7% 28% 147
2 MICROWAVE PHOTON TECHNOL address 322571 2% 61% 35
3 TUNABLE LASER authKW 248932 5% 17% 97
4 DISTRIBUTED BRAGG REFLECTOR LASERS authKW 245109 2% 33% 49
5 SEMICONDUCTOR LASERS authKW 212086 12% 6% 241
6 SAMPLED GRATING authKW 197178 1% 77% 17
7 LASER TUNING authKW 157987 3% 21% 51
8 DFB LASER authKW 146399 2% 26% 38
9 DISTRIBUTED FEEDBACK DFB LASERS authKW 138766 2% 23% 40
10 IEEE JOURNAL OF QUANTUM ELECTRONICS journal 126845 13% 3% 268

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 37734 56% 0% 1144
2 Engineering, Electrical & Electronic 32299 72% 0% 1470
3 Physics, Applied 13757 53% 0% 1071
4 Telecommunications 2569 10% 0% 202
5 COMPUTER APPLICATIONS & CYBERNETICS 84 0% 0% 4
6 Crystallography 11 1% 0% 27
7 Nanoscience & Nanotechnology 9 2% 0% 36
8 Physics, Multidisciplinary 1 2% 0% 44
9 Engineering, Aerospace -1 0% 0% 2
10 Engineering, General -2 0% 0% 7

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 MICROWAVE PHOTON TECHNOL 322571 2% 61% 35
2 OPTO GRP INTERET ECON 33773 0% 75% 3
3 DTDCPO 30021 0% 100% 2
4 EBLANA PHOTON 27017 0% 60% 3
5 OPTO GROUPEMENT INTERET ECON 20013 0% 67% 2
6 PHOTON WIRELESS DEVICES S 19917 0% 15% 9
7 CHEM ENGN PHYS 18982 0% 14% 9
8 INTEGRATED OPTOELECT 18964 1% 7% 18
9 ADVENCED OPTOELECT 15011 0% 100% 1
10 ALCATEL INNOVAT ROUTE NOZAY 15011 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 JOURNAL OF QUANTUM ELECTRONICS 126845 13% 3% 268
2 IEEE PHOTONICS TECHNOLOGY LETTERS 122482 18% 2% 363
3 ELECTRONICS LETTERS 64319 20% 1% 409
4 IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS 23741 4% 2% 80
5 IEE PROCEEDINGS-J OPTOELECTRONICS 19745 1% 5% 25
6 JOURNAL OF LIGHTWAVE TECHNOLOGY 17929 6% 1% 120
7 IEE PROCEEDINGS-OPTOELECTRONICS 14193 1% 3% 28
8 IEEE PHOTONICS JOURNAL 3241 1% 1% 21
9 OPTICAL AND QUANTUM ELECTRONICS 2318 1% 1% 25
10 INTERNATIONAL JOURNAL OF OPTOELECTRONICS 2110 0% 3% 5

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 DISTRIBUTED FEEDBACK LASERS 611799 7% 28% 147 Search DISTRIBUTED+FEEDBACK+LASERS Search DISTRIBUTED+FEEDBACK+LASERS
2 TUNABLE LASER 248932 5% 17% 97 Search TUNABLE+LASER Search TUNABLE+LASER
3 DISTRIBUTED BRAGG REFLECTOR LASERS 245109 2% 33% 49 Search DISTRIBUTED+BRAGG+REFLECTOR+LASERS Search DISTRIBUTED+BRAGG+REFLECTOR+LASERS
4 SEMICONDUCTOR LASERS 212086 12% 6% 241 Search SEMICONDUCTOR+LASERS Search SEMICONDUCTOR+LASERS
5 SAMPLED GRATING 197178 1% 77% 17 Search SAMPLED+GRATING Search SAMPLED+GRATING
6 LASER TUNING 157987 3% 21% 51 Search LASER+TUNING Search LASER+TUNING
7 DFB LASER 146399 2% 26% 38 Search DFB+LASER Search DFB+LASER
8 DISTRIBUTED FEEDBACK DFB LASERS 138766 2% 23% 40 Search DISTRIBUTED+FEEDBACK+DFB+LASERS Search DISTRIBUTED+FEEDBACK+DFB+LASERS
9 GAIN COUPLED DFB LASER 113512 1% 69% 11 Search GAIN+COUPLED+DFB+LASER Search GAIN+COUPLED+DFB+LASER
10 SPATIAL HOLE BURNING 100325 1% 35% 19 Search SPATIAL+HOLE+BURNING Search SPATIAL+HOLE+BURNING

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 COLDREN, LA , (2000) MONOLITHIC TUNABLE DIODE LASERS.IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS. VOL. 6. ISSUE 6. P. 988 -999 47 69% 165
2 HILLMER, H , KLEPSER, B , (2004) LOW-COST EDGE-EMITTING DFB LASER ARRAYS FOR DWDM COMMUNICATION SYSTEMS IMPLEMENTED BY BENT AND TILTED WAVEGUIDES.IEEE JOURNAL OF QUANTUM ELECTRONICS. VOL. 40. ISSUE 10. P. 1377-1383 31 97% 21
3 KAKIMOTO, S , WATANABE, H , (1998) THRESHOLD CURRENTS OF 1.3-MU M BULK, 1.55-MU M BULK, AND 1.55-MU M MQW DFB P-SUBSTRATE PARTIALLY INVERTED BURIED HETEROSTRUCTURE LASER DIODES.IEEE JOURNAL OF QUANTUM ELECTRONICS. VOL. 34. ISSUE 3. P. 540 -547 46 75% 8
4 LI, LY , TANG, S , LU, J , SHI, YC , CAO, BL , CHEN, XF , (2015) STUDY OF CASCADED TUNABLE DFB SEMICONDUCTOR LASER WITH WIDE TUNING RANGE AND HIGH SINGLE MODE YIELD BASED ON EQUIVALENT PHASE SHIFT TECHNIQUE.OPTICS COMMUNICATIONS. VOL. 352. ISSUE . P. 70 -76 25 83% 0
5 WU, L , HE, JJ , GALLAGHER, D , (2015) MODELING OF WIDELY TUNABLE V-CAVITY SEMICONDUCTOR LASER USING TIME-DOMAIN TRAVELING-WAVE METHOD.JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS. VOL. 32. ISSUE 2. P. 309 -317 23 88% 1
6 AKROUT, A , DRIDI, K , HALL, TJ , (2012) DYNAMIC ANALYSIS OF HIGH-ORDER LATERALLY COUPLED DFB LASERS USING TIME-DOMAIN TRAVELING-WAVE MODEL.IEEE JOURNAL OF QUANTUM ELECTRONICS. VOL. 48. ISSUE 10. P. 1252-1258 23 96% 0
7 DELORME, F , (1998) WIDELY TUNABLE 1.55-MU M LASERS FOR WAVELENGTH-DIVISION MULTIPLEXED OPTICAL FIBER COMMUNICATIONS.IEEE JOURNAL OF QUANTUM ELECTRONICS. VOL. 34. ISSUE 9. P. 1706 -1716 32 94% 50
8 SUEMATSU, Y , ARAI, S , (2000) SINGLE-MODE SEMICONDUCTOR LASERS FOR LONG-WAVELENGTH OPTICAL FIBER COMMUNICATIONS AND DYNAMICS OF SEMICONDUCTOR LASERS.IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS. VOL. 6. ISSUE 6. P. 1436 -1449 46 58% 22
9 ZHENG, JS , SHI, YC , ZHANG, YS , ZHENG, JL , LU, J , CHEN, XF , (2015) MONOLITHICALLY INTEGRATED FOUR-CHANNEL DFB SEMICONDUCTOR LASER ARRAY WITH AN EQUIVALENT-DISTRIBUTED COUPLING COEFFICIENT.IEEE PHOTONICS JOURNAL. VOL. 7. ISSUE 3. P. - 18 100% 0
10 HILLMER, H , PROTT, C , ROMER, F , HANSMANN, S , (2004) THEORETICAL MODEL CALCULATIONS OF LONG-HAUL EDGE-EMITTING COMMUNICATION LASERS: COMPARISON OF FRACTALLY MIXED, FINE-PITCHED AND CONTINUOUSLY CHIRPED DFB GRATINGS.SEMICONDUCTOR SCIENCE AND TECHNOLOGY. VOL. 19. ISSUE 7. P. 939-945 27 87% 1

Classes with closest relation at Level 1


Rank Class id link
1 28153 GAINASP INP//CH4 H 2 RIE//MEMBRANE LASER
2 3318 OPTICAL FEEDBACK//IEEE JOURNAL OF QUANTUM ELECTRONICS//SEMICONDUCTOR LASERS
3 13244 ELECTROABSORPTION MODULATORS//DIRECTLY MODULATED LASER//INGAALAS
4 33798 OPT TRANSMISS COMPONENTS//DIEE INFM//TRANSMISS DEVICES RD S
5 2193 QUANTUM WELL LASERS//SEMICONDUCTOR LASERS//IEEE JOURNAL OF QUANTUM ELECTRONICS
6 14914 SILC BLD//IEE PROCEEDINGS-J OPTOELECTRONICS//BISTABLE LASER DIODE
7 14532 SELECTIVE AREA GROWTH//SELECTIVE EPITAXY//TERTIARYBUTYLCHLORIDE
8 10876 JOURNAL OF LIGHTWAVE TECHNOLOGY//OPTICAL PHASE LOCKED LOOPS//OPTICAL PHASE LOCKED LOOPS OPLLS
9 6674 IEEE JOURNAL OF QUANTUM ELECTRONICS//EMCORE//FLARED STRIPE
10 6161 TAPERED LASERS//FERDINAND BRAUN//HIGH BRIGHTNESS LASERS

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