Automatic locking of a semiconductor laser at /spl lambda//spl ap/633 nm on linear absorption iodine transitions

Author

Zarka, A. ; Chartier, J. ; Cliche, J.-F. ; Tetu, M.

Author_Institution

BIPM, Pavillon de Breteuil, France

fYear

1998

fDate

6-10 July 1998

Firstpage

251

Lastpage

252

Abstract

A 633 nm laser diode was frequency tuned by its injection current and was automatically locked on specific linear absorption lines of iodine by using a digital line identification system. The setup provides a low cost optical frequency reference that is precise enough to replace He-Ne references in many metrological applications.

Keywords

automatic frequency control; digital control; frequency modulation; frequency standards; hyperfine structure; iodine; laser frequency stability; laser tuning; optical modulation; optical variables control; physical instrumentation control; semiconductor lasers; 633 nm; I/sub 2/; automatic locking; digital line identification system; digital locking system; frequency stability; frequency standard; frequency tuned; injection current; laser diode; linear absorption iodine transitions; low cost optical frequency reference; microprocessor based device; semiconductor laser; single mode tuning; Absorption; Current measurement; Diode lasers; Frequency measurement; Laser stability; Laser theory; Laser transitions; Laser tuning; Optical control; Semiconductor lasers;

fLanguage

English

Publisher

ieee

Conference_Titel

Precision Electromagnetic Measurements Digest, 1998 Conference on

Conference_Location

Washington, DC, USA

Print_ISBN

0-7803-5018-9

Type

conf

DOI

10.1109/CPEM.1998.699892

Filename

699892