Title :
Frequency comparison of /sup 127/I/sub 2/-stabilized Nd:YAG lasers
Author :
Feng-Lei Hong ; Ishikawa, J. ; Jun Ye ; Long-Sheng Ma ; Hall, J.L.
Author_Institution :
Nat. Res. Lab. of Metrol., Ibaraki, Japan
Abstract :
A first international comparison of I/sub 2/-stabilized Nd:YAG lasers has been made between National Research Laboratory of Metrology (NRLM, Japan) and Joint Institute for Laboratory Astrophysics (JILA, USA). The results of the comparison show that the Allan variance of the portable NRLM laser has reached <3/spl times/10/sup -13/ when the integration time is larger than 100 s. Frequency difference between the NRLM laser and the JILA laser is 3563 Hz (of IR light) with the matrix-averaged standard deviation of about 310 Hz.
Keywords :
frequency standards; hyperfine structure; iodine; laser frequency stability; neodymium; optical harmonic generation; solid lasers; /sup 127/I/sub 2/-stabilized Nd:YAG lasers; Allan variance; I/sub 2/; JILA laser; SHG buildup cavity; YAG:Nd; YAl5O12:Nd; frequency comparison; frequency stability; hyperfine transitions; international comparison; matrix-averaged standard deviation; modulation transfer; optical frequency standards; portable NRLM laser; reproducibility; Frequency; Laser excitation; Laser stability; Laser transitions; Nonlinear optics; Optical harmonic generation; Optical pumping; Power lasers; Pump lasers; Temperature;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 1998 Conference on
Conference_Location :
Washington, DC, USA
Print_ISBN :
0-7803-5018-9
DOI :
10.1109/CPEM.1998.699859
