Integrated-Optic Wavelength Multiplexer In Glass Fabricated By A Charge Controlled Ion Exchange

R. Klein; D. Jestel; H. J. Lilienhof; F. Rottman; E. Voges

doi:10.1117/12.949292

23 February 1989 Integrated-Optic Wavelength Multiplexer In Glass Fabricated By A Charge Controlled Ion Exchange

R. Klein, D. Jestel, H. J. Lilienhof, F. Rottman, E. Voges

Proceedings Volume 1011, Fiber Optic Sensors III; (1989) https://doi.org/10.1117/12.949292
Event: 1988 International Congress on Optical Science and Engineering, 1988, Hamburg, Germany

Abstract

Integrated-optic wavelength division multiplexing (WDM) is commonly used in communication systems. These WDM-devices are also well suited to build up optical fiber networks for both intensity and interferometric sensor types. The operation principle of our wavelength division multiplexing devise is based on the wavelength dependent two-mode interference in a two-moded waveguide, which is coupled adiabatically to the single-mode input and output strip waveguides. The single-mode input and output waveguides are connected via two Y-branches ( "'kJ- 1° branching angle ) with a two-moded intersection region. The ratio of the light powers in the single-mode output waveguides depends on wavelength . The two-mode interference within the two-moded center waveguide leads to an almost wavelength periodic transmission caracteristic . Dual-channel multiplexers/demultiplexers were fabricated by a charge controlled field assisted pottasium exchange in B-270 glass (Desag). The devices have a typical channel separation of 30 - 40 nm and a far-end crosstalk attenuation of better than 16 dB. The operation wavelength regions of the fabricated devices are 0.6 - 0.8 µm and 1.3 - 1.6 µm, respectively.

Citation Download Citation

R. Klein, D. Jestel, H. J. Lilienhof, F. Rottman, and E. Voges "Integrated-Optic Wavelength Multiplexer In Glass Fabricated By A Charge Controlled Ion Exchange", Proc. SPIE 1011, Fiber Optic Sensors III, (23 February 1989); https://doi.org/10.1117/12.949292

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