InGaAs/InP distributed-feedback lasers for spectroscopic applications

Author

Martinelli, Ramon U. ; Menna, Raymond J. ; Cooper, David E.

Author_Institution

David Sarnoff Res. Center, Princeton, NJ, USA

Volume

1

fYear

1994

fDate

31 Oct-3 Nov 1994

Firstpage

95

Abstract

The availability of 1.25- to 2-μm InGaAsP/InP distributed-feedback lasers opens the way to sensitive, room-temperature trace-gas monitoring with applications in medical diagnostics, pollution monitoring, security, and factory-process control. InGaAsP/lnP distributed-feedback (DFB) lasers have been highly developed at 1.3 and 1.55 μm for fiber-optic communications. The same techniques can be used to make single-mode lasers operating from about 1.25 to 2.0 μm. Employing these devices as sources for laser absorption spectroscopy, many molecules having absorption bands in this wavelength interval can be detected with ⩽ ppm-meter sensitivity

Keywords

spectroscopic light sources; 1.25 to 2.0 micron; InGaAs/InP distributed-feedback lasers; InGaAsP-InP; laser absorption spectroscopy; molecules; single-mode lasers; trace-gas monitoring; Absorption; Biomedical monitoring; Fiber lasers; Indium gallium arsenide; Indium phosphide; Medical diagnosis; Optical control; Pollution; Security; Spectroscopy;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Society Annual Meeting, 1994. LEOS '94 Conference Proceedings. IEEE

Conference_Location

Boston, MA

Print_ISBN

0-7803-1470-0

Type

conf

DOI

10.1109/LEOS.1994.586909

Filename

586909