Iodine-stabilized diode laser at 633 nm: effects of optical feedback

Author

Merimaa, Mikko ; Talvitie, Hannu ; Hu, Jianpei ; Ikonen, Erkki

Author_Institution

Metrol. Res. Inst., Helsinki Univ. of Technol., Espoo, Finland

Volume

48

Issue

2

fYear

1999

fDate

4/1/1999 12:00:00 AM

Firstpage

587

Lastpage

591

Abstract

The frequency of a diode laser has been stabilized to the hyperfine spectrum of molecular iodine at 633 mm. A frequency stability and a (day-to-day) reproducibility of 4×10^-12 and 5×10^-11, respectively, were obtained. In particular, we have investigated the effect of optical feedback on the locking point frequency of the stabilized diode laser. Optical feedback can cause amplitude variations and harmonic distortion of the frequency modulation of the diode laser and, subsequently, cause a significant shift of the locking point of the laser. The optical feedback is shown to have undesired effects even at very small (7×10^-10) levels

Keywords

iodine; laser feedback; laser frequency stability; semiconductor lasers; 633 nm; I₂; diode laser; frequency modulation; frequency stabilization; hyperfine spectrum; locking point; molecular iodine; optical feedback; Amplitude modulation; Diode lasers; Frequency modulation; Laser feedback; Laser noise; Laser stability; Lenses; Optical distortion; Optical feedback; Reproducibility of results;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.769664

Filename

769664