We demonstrated a continuously tunable optofluidic distributed feedback (DFB) dye laser on a monolithic poly(dimethylsiloxane) (PDMS) elastomer chip. The optical feedback was provided by a phase-shifted higher order Bragg grating embedded in the liquid core of a single mode buried channel waveguide. We achieved nearly 60nm continuously tunable output by mechanically varying the grating period with two dye molecules Rhodamine 6G (Rh6G) and Rhodamine 101 (Rh101). Single-mode operation was obtained with
Camille Sophie Brès, Anton Stroganov, Ozan Yakar, Christian André Clément Lafforgue, Marco Clementi, Anamika Nair Karunakaran
Tobias Kippenberg, Rui Ning Wang, Xinru Ji, Zheru Qiu, Andrea Bancora, Yang Liu, Andrey Voloshin