Direct comparison of two cold-atom-based optical frequency standards by using a femtosecond-laser comb

被引：27

作者：

Vogel, KR ^{[1
]}

Diddams, SA ^{[1
]}

Oates, CW ^{[1
]}

Curtis, EA ^{[1
]}

Rafac, RJ ^{[1
]}

Itano, WM ^{[1
]}

Bergquist, JC ^{[1
]}

Fox, RW ^{[1
]}

Lee, WD ^{[1
]}

Wells, JS ^{[1
]}

Hollberg, L ^{[1
]}

机构：

[1] Natl Inst Stand & Technol, Div Time & Frequency, Boulder, CO 80305 USA

来源：

OPTICS LETTERS | 2001年 / 26卷 / 02期

关键词：

D O I：

10.1364/OL.26.000102

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

With a fiber-broadened, femtosecond-laser frequency comb, the 76-THz interval between two laser-cooled optical frequency standards was measured with a statistical uncertainty of 2 x 10(-13) in 5 s, to our knowledge the best short-term instability thus far reported for an optical frequency measurement. One standard is based on the calcium intercombination line at 657 nm, and the other, on the mercury ion electric-quadrupole transition at 282 nm. By linking this measurement to the known Ca frequency, we report a new frequency value for the Hg+ clock transition with an improvement in accuracy of similar to 10(5) compared with its best previous measurement.

引用

页码：102 / 104

页数：3

共 19 条

[1] Cs-based frequency measurement of a single, trapped ton transition in the visible region of the spectrum [J].

Bernard, JE ;

Madej, AA ;

Marmet, L ;

Whitford, BG ;

Siemsen, KJ ;

Cundy, S .

PHYSICAL REVIEW LETTERS, 1999, 82 (16) :3228-3231

[2] Direct link between microwave and optical frequencies with a 300 THz femtosecond laser comb [J].

Diddams, SA ;

Jones, DJ ;

Ye, J ;

Cundiff, ST ;

Hall, JL ;

Ranka, JK ;

Windeler, RS ;

Holzwarth, R ;

Udem, T ;

Hänsch, TW .

PHYSICAL REVIEW LETTERS, 2000, 84 (22) :5102-5105

[3] Sub-systems for optical frequency measurements:: application to the 282-nm 199Hg+ transition and the 657-nm Ca line [J].

Frech, B ;

Wells, JS ;

Oates, CW ;

Mitchell, J ;

Lan, YP ;

Kurosu, T ;

Zink, L ;

Hollberg, L ;

Zibrova, T ;

Young, BC ;

Bergquist, JC .

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 2000, 47 (02) :513-517

[4] Optical frequency synthesizer for precision spectroscopy [J].

Holzwarth, R ;

Udem, T ;

Hänsch, TW ;

Knight, JC ;

Wadsworth, WJ ;

Russell, PSJ .

PHYSICAL REVIEW LETTERS, 2000, 85 (11) :2264-2267

[5] DIRECT FREQUENCY-MEASUREMENT OF THE I2-STABILIZED HE-NE 473-THZ (633-NM) LASER [J].

JENNINGS, DA ;

POLLOCK, CR ;

PETERSEN, FR ;

DRULLINGER, RE ;

EVENSON, KM ;

WELLS, JS ;

HALL, JL ;

LAYER, HP .

OPTICS LETTERS, 1983, 8 (03) :136-138

[6] Carrier-envelope phase control of femtosecond mode-locked lasers and direct optical frequency synthesis [J].

Jones, DJ ;

Diddams, SA ;

Ranka, JK ;

Stentz, A ;

Windeler, RS ;

Hall, JL ;

Cundiff, ST .

SCIENCE, 2000, 288 (5466) :635-639

[7] DELIVERING THE SAME OPTICAL FREQUENCY AT 2 PLACES - ACCURATE CANCELLATION OF PHASE NOISE INTRODUCED BY AN OPTICAL-FIBER OR OTHER TIME-VARYING PATH [J].

MA, LS ;

JUNGNER, P ;

YE, J ;

HALL, JL .

OPTICS LETTERS, 1994, 19 (21) :1777-1779

[8] Measurement of the hydrogen 1S-2S transition frequency by phase coherent comparison with a microwave cesium fountain clock [J].

Niering, M ;

Holzwarth, R ;

Reichert, J ;

Pokasov, P ;

Udem, T ;

Weitz, M ;

Hänsch, TW ;

Lemonde, P ;

Santarelli, G ;

Abgrall, M ;

Laurent, P ;

Salomon, C ;

Clairon, A .

PHYSICAL REVIEW LETTERS, 2000, 84 (24) :5496-5499

[9] Improved short-term stability of optical frequency standards: approaching 1 Hz in 1 s with the Ca standard at 657 nm [J].

Oates, CW ;

Curtis, EA ;

Hollberg, L .

OPTICS LETTERS, 2000, 25 (21) :1603-1605

[10] A diode-laser optical frequency standard based on laser-cooled Ca atoms: Sub-kilohertz spectroscopy by optical shelving detection [J].

Oates, CW ;

Bondu, F ;

Fox, RW ;

Hollberg, L .

EUROPEAN PHYSICAL JOURNAL D, 1999, 7 (03) :449-460

← 1 2 →