The article concerning state- of the art of photonic crystal fibers is compared with that concerning ultra broadband single- mode triple- clad fibers (UBSM- TCF) optimized by target- oriented design method (TODM). A physical model and TODM are introduced based on macroscopic Maxwell equations. Acceptable tolerances of three control parameters for mass production of UBSM- TCF optimized by TODM are estimated. Ultra broadband optical fibers and ultra broadband telecommunication systems are studied to serve the national strategy of broadband china. Three targets of national optical fiber industry are discussed.