Feedback enhancement in lasers with organic gain material

Rik Harbers; Patric Strasser; Rainer F. Mahrt; Daniel Erni; Werner Baechthold; Bert J. Offrein; Ullrich Scherf

doi:10.1117/12.608662

7 July 2005 Feedback enhancement in lasers with organic gain material

Rik Harbers, Patric Strasser, Rainer F. Mahrt, Daniel Erni, Werner Baechthold, Bert J. Offrein, Ullrich Scherf

Proceedings Volume 5840, Photonic Materials, Devices, and Applications; (2005) https://doi.org/10.1117/12.608662
Event: Microtechnologies for the New Millennium 2005, 2005, Sevilla, Spain

Abstract

The mode coupling of organic distributed feedback lasers is enhanced by using a distributed feedback grating that is etched into a thin layer of titanium dioxide (TiO₂). The use of TiO₂ increases the index contrast in the grating and the confinement in the waveguide. The enhanced mode coupling results in larger feedback given to the lasing modes, which lowers the laser threshold and allows smaller devices to be built. The lasing threshold of the TiO₂-enhanced devices is twice as low as that of conventional devices whose grating is etched directly into the quartz.

Citation Download Citation

Rik Harbers, Patric Strasser, Rainer F. Mahrt, Daniel Erni, Werner Baechthold, Bert J. Offrein, and Ullrich Scherf "Feedback enhancement in lasers with organic gain material", Proc. SPIE 5840, Photonic Materials, Devices, and Applications, (7 July 2005); https://doi.org/10.1117/12.608662

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