1
J. P. Burger, R. Siebrits, R. R. G. Gamatham, G. van Tonder, G. Adams, V. van
Tonder, Z. Ramudzuli, S. Buchner, M. Abgrall, P. Pierre Uhrich, and
D. Rovera, “Design, implementation, and qualification of high-performance
ti me and frequency reference for the MeerKAT telescope,” Journal of
Astronomical Telescopes, Instruments, and Systems, vol. 8, no. 1, pp. 1 -
33, 2022.
2
G. D. Rovera, M. Siccardi, S. Römisch, and M. Abgrall, “Time delay
measurements: estimation of the error budget,” Metrologia, vol. 56,
p. 035004, may 2019.
3
E. Samain, G. D. Rovera, J. Torre, C. Courde, A. Belli,
P. Exertier, P. Uhrich, P. Guillemot, R. Sherwood, X. Dong,
X. Han, Z. Zhang, W. Meng, and Z. Zhang, “Time transfer by laser
link (t2l2) in noncommon view between europe and china,” IEEE
Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 65,
pp. 927-933, June 2018.
4
P. Defraigne, W. Huang, B. Bertrand, and D. Rovera, “Study of the GPS
inter-frequency calibration of timing receivers,” Metrologia, vol. 55,
pp. 11-19, dec 2017.
5
G. D. Rovera, S. Bize, B. Chupin, J. Guéna, P. Laurent, P. Rosenbusch,
P. Uhrich, and M. Abgrall, “UTC(OP) based on LNE-SYRTE atomic fountain
primary frequency standards,” Metrologia, vol. 53, no. 3, p. S81,
2016.
6
P. Exertier, E. Samain, C. Courde, M. Aimar, J. M. Torre, G. D. Rovera,
M. Abgrall, P. Uhrich, R. Sherwood, G. Herold, U. Schreiber, and
P. Guillemot, “Sub-ns time transfer consistency: a direct comparison between
GPS CV and T2L2,” Metrologia, vol. 53, no. 6, p. 1395, 2016.
7
G. D. Rovera, M. Abgrall, C. Courde, P. Exertier, P. Fridelance, P. Guillemot,
M. Laas-Bourez, N. Martin, E. Samain, R. Sherwood, J.-M. Torre, and
P. Uhrich, “A direct comparison between two independently calibrated time
transfer techniques: T2L2 and GPS common-views,” Journal of
Physics: Conference Series, vol. 723, no. 1, p. 012037, 2016.
8
G. D. Rovera, J.-M. Torre, R. Sherwood, M. Abgrall, C. Courde, M. Laas-Bourez,
and P. Uhrich, “Link calibration against receiver calibration: an assessment
of GPS time transfer uncertainties,” Metrologia, vol. 51, no. 5,
p. 476, 2014.
9
O. Gobert, D. Rovera, G. Mennerat, and M. Comte, “Linear electro optic effect
for high repetition rate carrier envelope phase control of ultra short laser
pulses,” Applied Sciences, vol. 3, no. 1, pp. 168-188, 2013.
10
R. Le Targat, L. Lorini, Y. Le Coq, M. Zawada, J. Guena, M. Abgrall, M. Gurov,
P. Rosenbusch, D. G. Rovera, B. Nagorny, R. Gartman, P. G. Westergaard, M. E.
Tobar, M. Lours, G. Santarelli, A. Clairon, S. Bize, P. Laurent, P. Lemonde,
and J. Lodewyck, “Experimental realization of an optical second with
strontium lattice clocks,” Nature Communications, vol. 4, p. 2109,
July 2013.
11
O. Lopez, A. Kanj, P.-E. Pottie, D. Rovera, J. Achkar, C. Chardonnet,
A. Amy-Klein, and G. Santarelli, “Simultaneous remote transfer of accurate
timing and optical frequency over a public fiber network,” Applied
Physics B-lasers and Optics, vol. 110, pp. 3-6, Jan. 2013.
12
A. Matveev, C. G. Parthey, K. Predehl, J. Alnis, A. Beyer, R. Holzwarth,
T. Udem, T. Wilken, N. Kolachevsky, M. Abgrall, D. Rovera, C. Salomon,
P. Laurent, G. Grosche, O. Terra, T. Legero, H. Schnatz, S. Weyers,
B. Altschul, and T. W. Haensch, “Precision measurement of the hydrogen 1s-2s
frequency via a 920-km fiber link,” Physical Review Letters, vol. 110,
p. 230801, June 2013.
13
M. E. Tobar, P. L. Stanwix, J. J. McFerran, J. Guena, M. Abgrall, S. Bize,
A. Clairon, P. Laurent, P. Rosenbusch, D. Rovera, and G. Santarelli,
“Testing local position and fundamental constant invariance due to periodic
gravitational and boost using long-term comparison of the syrte atomic
fountains and h-masers,” Physical Review D, vol. 87, p. 122004, June
2013.
14
G. Cerretto, P. Tavella, F. Lahaye, Y. Mireault, and D. Rovera, “Near
real-time comparison and monitoring of time scales with precise point
positioning using nrcan ultra-rapid products,” Ultrasonics,
Ferroelectrics, and Frequency Control, IEEE Transactions on, vol. 59,
pp. 545-551, March 2012.
15
J. Guéna, M. Abgrall, D. Rovera, P. Laurent, B. Chupin, M. Lours,
G. Santarelli, P. Rosenbusch, M. Tobar, R. Li, K. Gibble, A. Clairon, and
S. Bize, “Progress in atomic fountains at LNE-SYRTE,” Ultrasonics,
Ferroelectrics, and Frequency Control, IEEE Transactions on, vol. 59,
pp. 391-409, March 2012.
16
F. Hindle, G. Mouret, S. Eliet, M. Guinet, A. Cuisset, R. Bocquet, T. Yasui,
and D. Rovera, “Widely tunable THz synthesizer,” Appl. Phys. B.,
vol. 104, pp. 763-768, 2011.
17
C. G. Parthey, A. Matveev, J. Alnis, B. Bernhardt, A. Beyer, R. Holzwarth,
A. Maistrou, R. Pohl, K. Predehl, T. Udem, T. Wilken, N. Kolachevsky,
M. Abgrall, D. Rovera, C. Salomon, P. Laurent, and T. W. Hänsch, “Improved
measurement of the Hydrogen 1S-2S transition frequency,” Phys.
Rev. Lett., vol. 107, p. 203001, Nov 2011.
18
J. Guéna, P. Rosenbusch, P. Laurent, M. Abgrall, D. Rovera, G. Santarelli,
M. Tobar, S. Bize, and A. Clairon, “Demonstration of a dual alkali Rb/Cs
fountain clock,” Ultrasonics, Ferroelectrics and Frequency Control,
IEEE Transactions on, vol. 57, no. 3, pp. 647-653, 2010.
19
G. Mouret, F. Hindle, A. Cuisset, C. Yang, R. Bocquet, M. Lours, and D. Rovera,
“THz photomixing synthesizer based on a fiber frequency comb,” Opt.
Express, vol. 17, no. 24, pp. 22031-22040, 2009.
20
J. A. Stone, J. E. Decker, P. Gill, P. Juncar, A. Lewis, G. D. Rovera, and
M. Viliesid, “Advice from the CCL on the use of unstabilized lasers as
standards of wavelength: the helium-neon laser at 633 nm,” Metrologia,
vol. 46, no. 1, pp. 11-18, 2009.
21
M. Chwalla, J. Benhelm, K. Kim, G. Kirchmair, T. Monz, M. Riebe, P. Schindler,
A. S. Villar, W. Haensel, C. F. Roos, R. Blatt, M. Abgrall, G. Santarelli,
G. D. Rovera, and P. Laurent, “Absolute frequency measurement of the
clock transition,” Phys. Rev. Lett., vol. 102, p. 023002, 2009.
22
X. Baillard, M. Fouché, R. L. Targat, P. G. Westergaard, A. Lecallier,
F. Chapelet, M. Abgrall, G. D. Rovera, P. Laurent, P. Rosenbusch, S. Bize,
G. Santarelli, A. Clairon, P. Lemonde, G. Grosche, B. Lipphardt, and
H. Schnatz, “An optical lattice clock with spin-polarized 87sr atoms,” Eur. Phys. J. D, vol. 48, p. 11, 2008.
23
M. Fouche, R. Le Targat, X. Baillard, A. Brusch, O. Tcherbakoff, G. D. Rovera,
and P. Lemonde, “Accuracy evaluation of a
optical lattice
clock,” Instrumentation and Measurement, IEEE Transactions on, 2007,
vol. 56, pp. 336-340, April 2007.
24
X. Baillard, M. Fouché, R. L. Targat, P. G. Westergaard, A. Lecallier,
YannLe Coq, G. D. Rovera, S. Bize, and P. Lemonde, “Accuracy evaluation of
an optical lattice clock with bosonic atoms,” Opt. Lett., vol. 32,
no. 13, pp. 1812-1814, 2007.
25
R. Le Targat, X. Baillard, M. Fouché, A. Brusch, O. Tcherbakoff, G. D.
Rovera, and P. Lemonde, “Accurate optical lattice clock with
Sr
atoms,” Phys. Rev. Lett., vol. 97, p. 130801, Sep 2006.
26
I. Courtillot, A. Quessada-Vial, A. Brusch, D. Kolker, G. D. Rovera, and
P. Lemonde, “Accurate spectroscopy of Sr atoms,” Eur. Phys. J. D, vol. 33, pp. 161-171, 2005.
27
G. D. Rovera and J.-P. Wallerand, “Impulsions lumineuses ultra courtes pour la
métrologie de fréquences,” Images de la Physique, vol. ,
pp. 146-151, 2005.
28
T. Badr, M. D. Plimmer, P. Juncar, M. E. Himbert, J. D. Silver, and G. D.
Rovera, “Continuous wave Doppler-free two-photon spectroscopy of the
4d
5s
S
-> 4d
5s
D
transition in atomic silver,” Eur. Phys. J. D, vol. 31, no. 1,
pp. 3-10, 2004.
29
G. D. Rovera, “Métrologie de fréquence dans le domaine optique à
l'Observatoire de Paris,” XYZ, vol. 101, pp. 53-54, 2004.
30
I. Courtillot, A. Quessada, R. P. Kovacich, A. Brusch, D. Kolker, J.-J. Zondy,
G. D. Rovera, and P. Lemonde, “Clock transition for a future optical
frequency standard with trapped atoms,” Physical Review A, vol. 68,
p. 030501(R), 2003.
31
G. D. Rovera, J.-P. Wallerand, F. Ducos, J.-J. Zondy, O. Acef, M. Lours, J. C.
Knight, and P. St. J. Russell, “Mesure absolue de fréquences
optiques au BNM: application à un étalon à 563 THz (532 nm),” Bulletin BNM, vol. 2003-1, no. 122, pp. 3-10, 2003.
32
G. D. Rovera, F. Ducos, J.-J. Zondy, O. Acef, J.-P. Wallerand, J. C. Knight,
and P. St. J. Russell, “Absolute frequency measurement of an
I
stabilized Nd
YAG optical frequency standard,” Meas. Sci. Technol., vol. 13, pp. 918-922, 2002.
33
F. Ducos, Y. Hadjar, G. D. Rovera, J.-J. Zondy, and O. Acef, “Progress towards
absolute frequency measurement of the
I
-stabilized
Nd
YAG laser at 563.2 THz/532 nm,” IEEE Trans. Instrum. Meas., vol. 50, no. 2, pp. 539-542, 2001.
Also in CPEM 2000, Sidney.
34
G. D. Rovera and O. Acef, “Optical frequency measurements relying on a mid
infrared frequency standard,” in Frequency measurement and control
(A. Luiten, ed.), vol. 79 of Topics in Applied Physics, pp. 249-272,
Springer-Verlag, 2000.
35
C. Daussy, F. Ducos, O. Acef, G. D. Rovera, , and O. Acef, “Performances of
OsO
stabilized CO
lasers as optical Frequency Standards
near 29 THz,” IEEE Trans. Ultrason., Ferroelec., Freq. Contr.,
vol. 47, no. 2, pp. 518-520, 2000.
36
F. Teles, D. V. Magalhães, M. S. dos Santos, G. D. Rovera, and V. S.
Bagnato, “Construction and evaluation of the first Brazilian atomic
clock,” IEEE Trans. Ultrason., Ferroelec., Freq. Contr., vol. 47,
no. 5, pp. 1111-1114, 2000.
37
O. Acef, F. Michaud, and G. D. Rovera, “Accurate determination of
OsO
absolute frequency grid at 28/29 THz,” IEEE Trans. Instrum. Meas., vol. 48, no. 2, pp. 567-570, 1999.
Also in CPEM 98, Washington.
38
G. D. Rovera and O. Acef, “Absolute frequency measurement of mid infrared
secondary frequency standard at BNM LPTF,” IEEE Trans. Instrum. Meas., vol. 48, no. 2, pp. 571-573, 1999.
Also presented as postdeadline at CPEM 98, Washington.
39
L. Lo Presti, G. D. Rovera, and A. De Marchi, “A simple analysis of the
Dick effect in terms of phase noise spectral density,” IEEE Trans. Ultrason., Ferroelec., Freq. Contr., vol. 45, pp. 899-905, July 1998.
40
G. D. Rovera, “Low frequency noise optically pumped FIR laser with frequency
stabilized pump,” Optics Comm., vol. 143, pp. 247-251, 1997.
41
G. D. Rovera, G. Santarelli, and A. Clairon, “Frequency synthesis chain for
the atomic fountain primary frequency standard,” IEEE Trans. Ultrason., Ferroelec., Freq. Contr., vol. 43, pp. 354-358, May 1996.
42
G. Santarelli, M. Lours, and G. D. Rovera, “Low noise phase lock of high
spectral purity 100 MHz VCXO to a high stability 10 MHz reference
oscillator,” Electron. Lett., vol. 32, pp. 866-867, May 1996.
43
J. H. Shirley, W. D. Lee, G. D. Rovera, and R. E. Drullinger, “Rabi pedestal
shifts as a diagnostic tool for primary frequency standard,” IEEE
Trans. Instrum. Meas., vol. 44, pp. 136-139, April 1995.
Also in: CPEM-94 Boulder, 27 June - 1 July 1994.
44
O. Acef, F. Nez, and G. D. Rovera, “Optical heterodyning with frequency
difference of 1 THz in the 850 nm range,” Optics Letters, vol. 19,
pp. 1275-1277, Sept. 1994.
45
G. D. Rovera, E. de Clercq, and A. Clairon, “L'Etalon primire de frequence
du LPTF,” Bulletin BNM, vol. 95, pp. 3-9, Janvier 1994.
46
G. Rovera, E. de Clercq, and A. Clairon, “An analysis of major frequency
shifts in the LPTF optically pumped primary frequency standard,” Ultrasonics, Ferroelectrics and Frequency Control, IEEE Transactions on,
vol. 41, pp. 245-249, March 1994.
47
G. D. Rovera, G. Santarelli, and A. Clairon, “A laser diode stabilized on the
Caesium D
line,” Review of Scientific Instruments, vol. 65,
pp. 1502-1505, May 1994.
48
O. Acef, J. J. Zondy, M. Abed, G. D. Rovera, A. H. Gerard, A. Clairon,
Ph. Laurent, Y. Millerioux, and P. Juncar, “Chaine de synth`ese de
fr'equences visibles: mesure de la frequ'ence à 473 THz d'un laser
He-Ne/I2,” Bulletin BNM, vol. 91, pp. 7-16, Janvier 1993.
49
O. Acef, J. J. Zondy, M. Abed, G. D. Rovera, A. H. Gerard, A. Clairon,
Ph. Laurent, Y. Millerioux, and P. Juncar, “A CO
to Visible
Optical Frequency Synthesis Chain: Accurate Measurement of the
473 THz He-Ne/I
laser,” Optics Comm., vol. 97,
pp. 29-34, 1993.
50
A. Clairon, O. Acef, J. J. Zondy, M. Abed, G. D. Rovera, A. H. Gerard,
Ph. Laurent, J. P. Bouyer, Ch. Bréant, Y. Millerioux, and P. Juncar,
“Mesure de fréquences optiques de l'infrarouge au visible,” Revue
Scientifique Technique de la Défense, vol. 3, no. 91, pp. 87-96,
1993.
51
E. de Clercq, G. D. Rovera, S. Bouzid, and A. Clairon, “The LPTF optically
pumped primary frequency standard,” IEEE Trans. Instrum. Meas.,
vol. 42, pp. 457-461, April 1993.
Also in: CPEM-92 Paris.
52
A. De Marchi, G. D. Rovera, and A. Premoli, “Effects of servo loop modulation
in atomic beam frequency standards employing a Ramsey cavity,” IEEE
Trans. Ultrason., Ferroelec., Freq. Contr., vol. UFFC 34, pp. 582-591,
Nov. 1987.
53
A. Godone, E. Bava, A. De Marchi, G. D. Rovera, and G. Giusfredi,
“Experimental results on a Mg atomic beam,” IEEE Trans. Instrum. Meas., vol. IM-34, pp. 129-132, June 1985.
Also in: CPEM-84 Delft.
54
A. De Marchi, G. D. Rovera, and A. Premoli, “Pulling by neighbouring
transitions and its effects on the performance of Caesium beam frequency
standards,” Metrologia, vol. 20, pp. 37-47, 1984.
55
E. Bava, A. Godone, and G. D. Rovera, “Phase-lock of a submillimetric
carcinotron,” Infrared Phys. & Tech., vol. 23, no. 3, pp. 157-160,
1983.
56
E. Bava, A. De Marchi, A. Godone, G. D. Rovera, and G. Giusfredi, “Isotopic
shift measurement of 3P1 - 3P0 fine structure transition of 24Mg
and 26Mg,” Optics Comm., vol. 47, pp. 193-195, Sept. 1983.
57
A. Godone, A. De Marchi, G. D. Rovera, E. Bava, and G. Giusfredi, “Frequency
measurement of 3P1 - 3P0 fine structure transition of 24Mg,” Physical Review A, vol. 28, pp. 2562-2564, Oct. 1983.