Photonic band gap optical fiber

摘要

The present invention is directed toward photonic band gap optical fibers having low optical loss and low optical nonlinearity. According to one embodiment of the invention, a photonic band gap fiber includes a cladding region formed from a photonic band gap structure, the optical energy having a wavelength within the photonic band gap of the photonic band gap structure; and a core region surrounded by the photonic band gap structure. The photonic band gap fiber guides the optical energy substantially within the core region with a loss of less than about 300 dB/km. According to another embodiment of the invention, an optical fiber guides optical energy in a mode having a nonlinear index of refraction of less than about 10<-18 >cm<2>/W. According to another embodiment of the invention, an optical fiber supports a soliton having a peak power of greater than about 1 MW.