Demonstration of a fiber grating based wavelength stabilization scheme for WDM application

Summary form only given. In this paper, we present a simple and yet effective way of wavelength stabilization using a fiber grating, which is known to provide high stability so as to keep the wavelength variation (0.05 nm over 100/spl deg/C) with a thermal packaging. Because our scheme is based on a level detection technique using both transmission and reflection profiles of a fiber grating, it doesn´t require dithering signals or complex electronics. Furthermore, for the convenience of an operator it provides wavelength warning lamps, which indicates the current wavelength position compared with the reference.