We report observations and measurements of the inscription of fiber Bragg gratings (FBGs) in two different types of microstructured polymer optical fiber: few-mode and an endlessly single mode. Contrary to the FBG inscription in silica microstructured fiber, where high-energy laser pulses are a prerequisite, we have successfully used a low-power cw laser source operating at 325 nm to produce 1 cm long gratings with a reflection peak at 1570 nm. Peak reflectivities of more than 10% have been observed.
© 2005 Optical Society of America
Fiber Optics and Optical Communications
Helen Dobb, David J. Webb, Kyriacos Kalli, Alexander Argyros, Maryanne C. Large, and Martijn A. van Eijkelenborg, "Continuous wave ultraviolet light-induced fiber Bragg gratings in few- and single-mode microstructured polymer optical fibers," Opt. Lett. 30, 3296-3298 (2005)