Continuously tunable optical mm-waves for fiber radio applications and ultra high bit-rate communications

Herbert Burkhard; H. Schoell

doi:10.1117/12.328712

4 December 1998 Continuously tunable optical millimeter waves for fiber radio applications and ultrahigh bit-rate communications

Herbert Burkhard, H. Schoell

Author Affiliations +

Proceedings Volume 3491, 1998 International Conference on Applications of Photonic Technology III: Closing the Gap between Theory, Development, and Applications; (1998) https://doi.org/10.1117/12.328712
Event: 1998 International Conference on Applications of Photonic Technology, 1998, Ottawa, Canada

Abstract

For the generation of optical mm-waves many schemes have been investigated19 because of its increasing technical interest for the wireless local ioop. Simple beating of two different laser lines yields high flexibility, the excessive phase noise, however, is a drawback. Nearly all methods for pulse generation are based on RF injection into single or two mode DFB lasers or Fabry Perot lasers. The tunability ofthese mm-sources is rather limited. The RF power in some cases exceeds 25 dBm, so that the generation of the optical mm-waves becomes quite costly. Our method relies on two dc-biased DFB lasers. The output of one of them (master laser) is injected via an isolator into a second DFB laser (slave laser): Under these conditions output power oscillations ofthe slave laser can be created of nearly arbitrary repetition frequency up to the THz range with high modulation index, high output power and very low phase noise. The additional continuous tunability makes this method attractive for a very flexible and low cost optical mm-wave generation.

Citation Download Citation

Herbert Burkhard and H. Schoell "Continuously tunable optical millimeter waves for fiber radio applications and ultrahigh bit-rate communications", Proc. SPIE 3491, 1998 International Conference on Applications of Photonic Technology III: Closing the Gap between Theory, Development, and Applications, (4 December 1998); https://doi.org/10.1117/12.328712

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