Encyclopedia of Laser Physics and Technology

© Dr. Rüdiger Paschotta

Last update: 2009-02-06

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Page Request Numbers

The following table lists the keywords corresponding to those articles in the Encyclopedia of Laser Physics and Technology, below which vendors can place links to their websites. It also shows the page hits which the articles have received in recent months.

	Page Requests in
Article	Nov 2009	Dec 2009	Jan 2010	Feb 2010
acousto-optic modulators	576	490	495	515
amplified spontaneous emission	404	371	376	436
amplifiers	432	284	360	332
anti-reflection coatings	340	273	278	366
autocorrelators	419	310	383	376
avalanche photodiodes	290	260	293	305
beam parameter product	406	356	408	439
beam profilers	330	228	253	291
beam quality	967	765	814	974
beam shapers	110	95	121	151
blue lasers	148	100	103	158
Bragg mirrors	675	558	613	1193
broad area laser diodes	209	147	175	252
carrier-envelope offset	281	213	265	270
ceramic gain media	122	82	86	146
chirped mirrors	306	299	293	349
chirped-pulse amplification	363	290	380	357
CO2 lasers	447	447	408	489
coherence	772	564	770	784
composite laser crystals	75	58	57	89
dielectric coatings	252	193	190	232
dielectric mirrors	394	295	307	545
diode bars	378	379	381	425
diode stacks	140	108	104	187
diode-pumped lasers	545	417	529	578
dispersion	510	371	396	490
dispersion compensation	493	351	307	388
dispersion compensation modules	153	116	123	169
dispersion-shifted fibers	203	151	117	192
distance measurements with lasers	766	639	757	715
distributed feedback lasers	694	506	561	559
double-clad fibers	238	204	198	271
dye lasers	376	307	284	353
electroabsorption modulators	233	170	146	176
electro-optic modulators	623	492	475	555
erbium-doped fiber amplifiers	718	596	590	549
etalons	327	253	271	314
Fabry-Perot interferometers	592	450	605	612
femtosecond lasers	743	592	703	634
fiber amplifiers	1336	649	648	835
fiber Bragg gratings	764	652	714	776
fiber couplers	311	281	311	361
fiber lasers	1622	941	929	1095
fiber lasers versus bulk lasers	223	217	241	292
fiber-coupled diode lasers	297	234	289	376
fiber-optic links	159	126	125	169
fiber-optic sensors	589	393	363	453
fibers	1457	1145	1187	1257
fluoride fibers	137	92	61	145
free-space optical communications	?	?	?	?
frequency combs	500	417	462	491
frequency doubling	1135	876	928	1054
frequency metrology	161	75	92	138
frequency-resolved optical gating	221	185	194	272
gain media	740	474	504	591
gain switching	153	103	154	179
Gaussian beams	1338	1152	1344	1475
green lasers	154	124	125	180
high-power fiber lasers and amplifiers	323	324	357	406
high-power lasers	489	562	?	423
intensity noise	288	265	236	320
interferometers	983	1044	960	1004
Kerr lens mode locking	206	204	220	284
lamp-pumped lasers	318	277	275	321
laser crystals	308	243	180	272
laser crystals versus glasses	175	112	86	165
laser diode modules	97	90	66	118
laser diodes	?	771	823	825
laser guide stars	110	58	59	112
laser marking	189	134	111	185
laser noise	306	243	274	305
laser pointers	271	235	221	262
laser resonators	745	538	482	570
laser safety	630	530	513	546
lasers	958	627	667	736
light-emitting diodes	346	306	272	355
linewidth	1049	904	1054	1241
Lyot filters	164	132	98	141
M2 factor	841	890	931	996
metal-semiconductor-metal photodetectors	112	106	74	88
microchip lasers	157	141	146	146
mid-infrared laser sources	0	0	0	26
mode locking	884	709	775	804
mode-locked diode lasers	143	124	142	182
mode-locked fiber lasers	384	322	368	430
mode-locked lasers	1058	668	710	808
multimode fibers	460	436	432	473
narrow-linewidth lasers	131	146	124	193
neodymium-doped gain media	399	285	315	357
nonlinear crystal materials	720	583	563	639
nonlinear frequency conversion	299	215	209	247
nonplanar ring oscillators	121	106	97	115
optical fiber communications	1277	1045	1011	1088
optical filters	281	213	185	296
optical modulators	315	211	205	286
optical parametric amplifiers	465	396	380	427
optical parametric oscillators	756	607	731	766
optical sampling	116	98	69	125
periodic poling	279	324	173	272
phase modulators	202	184	169	205
phase noise	230	176	191	219
photodetectors	401	292	309	400
photodiodes	868	714	789	889
photonic crystal fibers	586	535	450	532
picosecond lasers	147	82	97	140
p-i-n photodiodes	539	341	342	339
Pockels cells	377	379	329	352
polarization-maintaining fibers	333	258	321	380
powermeters	110	99	101	173
pulse duration	725	588	668	743
Q switching	809	680	873	872
Q-switched lasers	690	506	713	736
quantum cascade lasers	268	202	195	295
quasi-phase matching	394	486	252	327
Raman amplifiers	340	323	285	343
Raman lasers	286	238	207	311
rare-earth-doped fibers	285	225	246	311
rare-earth-doped gain media	236	167	231	226
regenerative amplifiers	405	349	465	431
saturable absorbers	477	381	428	465
semiconductor lasers	857	598	601	688
semiconductor optical amplifiers	231	162	156	233
semiconductor saturable absorber mirrors	494	416	402	514
single-frequency lasers	305	242	262	290
single-frequency operation	386	236	285	365
single-mode fibers	612	568	584	713
single-polarization fibers	76	74	117	105
slab lasers	201	205	178	248
solid-state lasers	764	441	566	566
stabilization of lasers	302	215	225	292
sum and difference frequency generation	352	255	255	359
supercontinuum generation	745	577	611	593
superluminescent diodes	266	277	275	293
superluminescent sources	101	66	54	128
thin-disk lasers	?	?	?	?
titanium-sapphire lasers	797	641	712	871
tunable lasers	288	206	245	296
tungstate lasers	105	77	96	121
ultrafast amplifiers	109	125	145	144
ultrafast lasers	217	188	196	216
ultraviolet lasers	302	243	247	326
vanadate lasers	435	327	327	441
vertical cavity surface-emitting lasers	285	291	278	296
vertical external-cavity surface-emitting lasers	262	196	185	239
vibronic lasers	85	73	69	92
waveguides	488	334	335	431
wavelength division multiplexing	240	226	217	298
wavelength tuning	414	282	402	416
waveplates	702	558	573	644
white light interferometers	266	189	192	298
white light sources	359	155	160	368
YAG lasers	1637	1326	1333	1500
YLF lasers	277	222	274	264
ytterbium-doped gain media	660	506	501	575
Total for all encyclopedia articles	183471	148509	155267	192303
Total for all related pages	46313	22895	27268	29882

Some explanations:

• The page hit numbers have been generated with the program AWStats, which is running on the server of the hosting provider, and should not include page hits caused by known search engine spiders. It can thus be assumed that the displayed page hits are nearly completely corresponding to human visitors.
• Occasionally, one article suddenly receives many more page hits than normal. If an analysis of the log files shows that these page hits are not “real”, they are not counted; the table then contains a question mark. If they are real – e.g. when an article is cited in some newsletter or in an RSS feed –, advertising fees may be manually adjusted, as the page hits may soon return so some normal level.
• The encyclopedia contains many more articles, which are not listed here (e.g. because they do not have direct relation to some products). However, advertisers may request to include additional articles in the list, which also seem interesting for placing vendor links.
• The total number of page hits in the second-last row is the total for all pages with encyclopedia articles (not only for those listed in the table).
• The page hit number in the last rows applies to all encyclopedia-related pages (e.g. the encyclopedia home page, this page, or the Photonics Spotlight), on which the banners also appear.
• The page hits of other pages of the RP Photonics website (e.g. the entry page) are not counted at all in the list above.

See also: Advertising in the Encyclopedia of Laser Physics and Technology