Paper
18 June 2002 Ion-exchanged glass DFB lasers for DWDM
Author Affiliations +
Abstract
Nowadays, optical telecommunication systems require an increasing bit-rate. For this reason Dense Wavelength Division Multiplexing (DWDM) systems are currently under development. They need optical sources with a narrow and stable emission spectrum in the C band which should also integrate several emission wavelengths. Glass waveguide lasers enable both the sharp linewidth of optical fiber lasers and the integration possibilities of semiconductor lasers. In this paper, the realization of ion-exchanged waveguide DFB lasers on glass substrates is presented. Phosphate Er-Yb-codoped glass integrated lasers are first investigated for different doping concentrations. The characteristics of these lasers are then compared : each one have low threshold and exhibit single mode output power of several milliwatt for 100 mW launched pump power. The effect of a passivation layer is then studied. Its modelling and experiment shows that the emitted power can be increased by reducing pump scattering losses. Thanks to the use of silver ion exchange technology, a high index increase is obtained which induces an important variation of the waveguide's effective index with its width. Thus, the emission of 15 channels roughly placed on the 100 GHz ITU grid is demonstrated.
© (2002) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Sylvain Blaize, Lionel Bastard, Cedric Cassagnetes, Guy Vitrant, and Jean-Emmanuel Broquin "Ion-exchanged glass DFB lasers for DWDM", Proc. SPIE 4640, Integrated Optics: Devices, Materials, and Technologies VI, (18 June 2002); https://doi.org/10.1117/12.433203
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Cited by 6 scholarly publications.
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KEYWORDS
Waveguides

Glasses

Semiconductor lasers

Fiber lasers

Laser glasses

Dense wavelength division multiplexing

Laser optics

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