Frequency-stabilised laser reference system for water vapour spectroscopy and sensing applications

Author

Matthey, R. ; Affolderbach, C. ; Mileti, G. ; Schilt, S. ; Werner, D. ; Thévenaz, L.

Author_Institution

Obs. de Neuchatel, Switzerland

fYear

2005

fDate

12-17 June 2005

Firstpage

462

Abstract

To acheive the requirements of DIAL instrument, a frequency detection unit (FDU) was realised for water vapour spectroscopy. For this we have developed and realised an ECDL, which can be adjusted at 935 nm or at 942 nm, a region also considered as possible for the WALES (water vapour lidar experiment in space) transmitter. The second main subsystem of the FDU, a frequency reference unit (FRU), grants short- and long-term frequency stabilities of the ISL. Offset-locking with frequency differences up to 19 GHz has been experimentally demonstrated with the proposed technique.

Keywords

atmospheric techniques; laser frequency stability; optical radar; optical sensors; semiconductor lasers; spectroscopy; DIAL instrument; extended-cavity diode laser; frequency detection unit; frequency reference unit; frequency-stabilised laser reference system; multipass configuration; offset-locking; sensing application; water vapour lidar transmitter; water vapour spectroscopy; Absorption; Frequency; Laser modes; Laser radar; Laser stability; Laser tuning; Optical transmitters; Semiconductor lasers; Space missions; Spectroscopy;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Europe, 2005. CLEO/Europe. 2005 Conference on

Print_ISBN

0-7803-8974-3

Type

conf

DOI

10.1109/CLEOE.2005.1568240

Filename

1568240