To address the issues of excessive path lengths and spectrum resource wastage in virtual optical network embedding (VONE), a fragmentation-aware virtual optical network cooperative embedding (FA-VONE) algorithm is proposed. This algorithm enhances the success rate of virtual node embedding through a node ranking strategy and adopts a cooperative node and link embedding approach to reduce optical path hops and spectrum consumption. During the link embedding phase, an optical path resource evaluation strategy is employed to improve the success rate of virtual link embedding. In the spectrum allocation phase, a spectrum fragmentation metric is designed to optimize spectrum utilization. Simulation results on NSFNET and Indian Network topologies demonstrate that FA-VONE excels in virtual request acceptance rate, spectrum utilization, and substrate network revenue.