Based on the un-even three-stage nonlinear interferometer instrument, this article has developed 1550 nm communication band portable polarization-entangled quantum photon source, in which three nonlinear fibers with lengths following binomial distribution (1∶2∶1) are sandwiched with two standard single mode fibers. The collection efficiency of entangled photons generated by polarized entangled quantum photon sources is greater than 85%. Under the condition of a counting rate of 4 kHz, the two-photon interference visibility of the entangled source is (77.1±0.6)%. In the case where the loss is only fiber transmission loss, the single-mode fiber is successfully used to distribute entangled photon pairs over 100 km over long distances.