An Optically Narrowed Diode Laser for Rb Saturation Spectroscopy

Abstract Diode laser linewidths have been reduced by a factor of up to 20 000 using the technique of resonant optical feedback. In this method, the laser frequency also locks optically to a confocal cavity, greatly improving the passive frequency stability. For the first time, such an optically narrowed diode laser has been used to obtain high-resolution Doppler-free spectra of the D2 line of 85Rb and 87Rb at 780 nm.

[1]  L. Hollberg,et al.  Frequency stabilization of semiconductor lasers by resonant optical feedback. , 1987, Optics letters.

[2]  P. Gill,et al.  Laser diode frequency stabilisation to Doppler-free rubidium spectra , 1988 .

[3]  C. Henry.  Theory of the linewidth of semiconductor lasers , 1982 .

[4]  Christopher C. Davis,et al.  Studies of the coherence properties of a diode-pumped Nd:YAG ring laser , 1988 .

[5]  D. W. Allan,et al.  Statistics of atomic frequency standards , 1966 .

[6]  H. Li,et al.  Efficient frequency noise reduction of GaAlAs semiconductor lasers by optical feedback from an external high-finesse resonator , 1989 .

[7]  P. Gill,et al.  A simple rubidium-stabilised laser diode for interferometric applications , 1988 .

[8]  R. Wyatt,et al.  10 kHz linewidth 1.5 μm InGaAsP external cavity laser with 55 nm tuning range , 1983 .

[9]  C.-H. Shin,et al.  Novel measurement method of linewidth enhancement factor in semiconductor lasers by optical self-locking , 1989 .

[10]  R. O. Miles,et al.  Spectral characteristics of semiconductor lasers with optical feedback , 1982 .

[11]  M. Ohtsu,et al.  Evaluations of frequency shift and stability in rubidium vapor stabilized semiconductor lasers. , 1989, Applied optics.

[12]  A. Mooradian,et al.  Linewidth and offset frequency locking of external cavity GaAlAs lasers , 1989 .

[13]  A. Clairon,et al.  Frequency noise analysis of optically self-locked diode lasers , 1989 .

[14]  B. Edĺen.  The Refractive Index of Air , 1966 .

[15]  Shigeru Nakayama.  Theoretical Analysis of Rb and Cs D 2 Lines in Saturation Spectroscopy with Optical Pumping , 1984 .