A hollow-core photonic band-gap fiber with very high group birefringence is fabricated and characterized. Two independent methods, wavelength scanning and direct measurement of differential group delay (DGD), are used to obtain the group beatlength and group birefringence. The fiber illustrates a very high group birefringence of 0.025 at 1550 nm. The wavelength dependence of the group beatlength and group birefringence are also analyzed.
We present our recent progress on non-diffractive beam cleaved fibers for optical connectivity applications. Fiber/ribbon can be cleaved at flexible locations with no swelling, flat end face, controlled surface roughness, and high process throughput.
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