An interesting article here on NewsFactor.com for those of you looking to run fiber deeper into your enterprise network.
The rise of bend-optimized fiber (BOF) originally came about as carriers needed a means to snake the otherwise rigid cables through the more twisted routes of the last mile of their regional networks. Now, the technology is gaining speed as fiber enters the actual enterprise infrastructure.
With standard fiber, bends are a no-no because they allow light to escape from the fiber core, reducing signal integrity. New standards from the International Telecommunications Union specify characteristics such as attenuation, splice loss and polarization dispersion for both macrobends (those you can see) and microbends (those you can't).
Most in-building fiber will fall under Class B of the G.657 standard, which allows for low-loss performance, even with tight bends.