The fabrication of meter-long continuous internal fiber electrodes is achieved through deposition of a silver film inside a twin-hole fiber. Photolithography of the electrodes with 5-μm resolution inside the fiber is demonstrated by point-by-point side exposure to 0.53-μm radiation through the unharmed acrylate coating, causing laser ablation. A proof-of-principle experiment demonstrates the creation of a phase-matched structure for frequency doubling.
© 2004 Optical Society of America
Niklas Myrén, Michael Fokine, Oleksandr Tarasenko, Lars-Erik Nilsson, Håkan Olsson, and Walter Margulis, "In-fiber electrode lithography," J. Opt. Soc. Am. B 21, 2085-2088 (2004)