The performance of distributed feedback (DFB) polymer lasers was adjusted by changing the cavity coupling. The microcavity of DFB polymer lasers was fabricated by two-beam multi-exposure interference lithography. With the different angles between two gratings, the coupling strength of the cavity modes was controlled. Reducing the coupling strength of cavity modes, the threshold of the polymer lasers decreased. According to the experimental results, the azimuthally polarized output was changed by tuning the cavity coupling. This method provides a facile way to realize low threshold and azimuthally polarized DFB polymer laser.
Adjustable polymer lasers based on cavity coupling
Semiconductor Lasers and Laser Dynamics IX ; 2020 ; Online Only,France
Proc. SPIE ; 11356
2020-04-01
Conference paper
Electronic Resource
English
British Library Conference Proceedings | 1998
|Coupled cavity vertical external cavity surface emitting lasers
British Library Conference Proceedings | 2023
|Processing of Vertical Cavity Lasers
British Library Conference Proceedings | 1993
|Photonic crystal vertical-cavity lasers
SPIE | 2004
|Selectively Oxidized Vertical-Cavity Lasers
British Library Conference Proceedings | 1995
|