Optical wavelength monitor using fiber optical coupler

Author

Ferreira, Eduardo S. ; Morimoto, Nilton I. ; Carvalho, Ricardo T.

Author_Institution

Escola Politecnica, Sao Paulo Univ., Brazil

Volume

2

fYear

2003

fDate

20-23 Sept. 2003

Firstpage

637

Abstract

We propose a wavelength monitoring system to control a LED central wavelength using a 2×2 single-mode fiber optic coupler. The coupler wavelength sensitivity was characterized in different temperature sets. The coupler split ratio is both wavelength and temperature dependent, and a significative variation of the wavelength to split ratio was observed in different temperature stances. The coupler is an easy-to-interface device as a suitable wavelength monitor to control the LED/laser wavelength stability, in an integrated all-fiber configuration.

Keywords

Sagnac interferometers; fibre optic gyroscopes; laser frequency stability; laser variables measurement; light emitting diodes; optical fibre couplers; LED central wavelength; Sagnac interferometer; coupler wavelength sensitivity; easy-to-interface device; fiber optic gyroscope; fiber optical coupler; integrated all-fiber configuration; laser wavelength stability; optical modal coupling; optical wavelength monitoring system; single-mode coupler; temperature dependent; wavelength dependent; wavelength sensor; Centralized control; Laser stability; Light emitting diodes; Monitoring; Optical control; Optical coupling; Optical fiber couplers; Optical sensors; Temperature dependence; Temperature sensors;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Optoelectronics Conference, 2003. IMOC 2003. Proceedings of the 2003 SBMO/IEEE MTT-S International

Print_ISBN

0-7803-7824-5

Type

conf

DOI

10.1109/IMOC.2003.1242652

Filename

1242652