@inproceedings{SchreinerMulotWiedmannetal., author = {Schreiner, Rupert and Mulot, M. and Wiedmann, J{\"o}rg and Coenning, W. and Porsche, J. and Gentner, Jean-Louis and Berroth, Manfred and Scholz, Ferdinand and Schwizer, H.}, title = {Dynamic measurements on narrow linewidth complex coupled 1.55 μm DFB lasers with gain and index grating in antiphase}, series = {Conference Proceedings. Eleventh International Conference on Indium Phosphide and Related Materials (IPRM'99), 16-20 May 1999, Davos, Switzerland}, booktitle = {Conference Proceedings. Eleventh International Conference on Indium Phosphide and Related Materials (IPRM'99), 16-20 May 1999, Davos, Switzerland}, publisher = {IEEE}, address = {Piscataway}, isbn = {0-7803-5562-8}, doi = {10.1109/ICIPRM.1999.773626}, pages = {25 -- 28}, abstract = {We report on dynamic measurements on antiphase complex coupled 1.55 /spl mu/m DFB lasers. The antiphase complex coupling mechanism is realized by periodically etching the active layer and quarternary InGaAsP overgrowth. This new fabrication approach results in very narrow linewidths measured on devices with rather short resonator lengths. The minimum linewidth for a 375 /spl mu/m long ridge waveguide laser was only 250 kHz at an optical output power of 4 mW. The RC-limited 3dB-bandwidth for those devices was /spl sim/6 GHz. Using circuit model corrections, the intrinsic bandwidth limitation of those lasers was found to be 17.4 GHz.}, language = {en} } @inproceedings{SchreinerGrabeldingerWiedmannetal., author = {Schreiner, Rupert and Grabeldinger, H. and Wiedmann, J. and Wunstel, K. and Porsche, J. and Scholz, Ferdinand and Schweizer, H.}, title = {Complex coupled 1.55 mu m tunable super-grating DFB lasers and photonic filters}, series = {Compound semiconductors 1999 : proceedings of the Twenty-Sixth International Symposium on Compound Semiconductors held in Berlin, Germany, 22 - 26 August 1999}, booktitle = {Compound semiconductors 1999 : proceedings of the Twenty-Sixth International Symposium on Compound Semiconductors held in Berlin, Germany, 22 - 26 August 1999}, publisher = {Inst. of Physics Publ.}, address = {Bristol [u.a.]}, isbn = {0-7503-0704-8}, abstract = {We report on the investigation and realization of photonic filters based on the combination of fractional compositions of a few basic grating periods. Using a minimum set of two basic periods Lambda(1) and Lambda(2) we demonstrate comb-like few mode photonic band gap structures with arbitrary numbers of bands and frequency spacing between the bands. Optically integrated filters of different comb periods result in switchable wavelength filters for channel selection in WDM applications.}, language = {en} } @article{SchreinerWiedmannCoenningetal., author = {Schreiner, Rupert and Wiedmann, J. and Coenning, W. and Porsche, J. and Gentner, Jean-Louis and Berroth, Manfred and Scholz, Ferdinand and Schweizer, H.}, title = {Fabrication approach for antiphase narrow linewidth complex coupled 1.55 μm DFB lasers}, series = {Electronics Letters}, volume = {35}, journal = {Electronics Letters}, number = {2}, publisher = {The Institution of Engineering and Technology IET}, issn = {0013-5194}, doi = {10.1049/el:19990132}, pages = {146 -- 148}, abstract = {A new method for fabricating narrow linewidth antiphase complex coupled MQW DFB lasers by periodically etching the active layer and quartemary InGaAsP overgrowth is reported. The minimum linewidth for a 375 µm long ridge waveguide laser is only 250 kHz at an optical output power of 4 mW.}, language = {en} }