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About product and suppliers:
        Alibaba.com offers 11 passive wdm optical isolator products. 

There are 11 passive wdm optical isolator suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of passive wdm optical isolator respectively. 

Passive wdm optical isolator products are most popular in South Asia, Southern Europe, and Northern Europe. 

You can ensure product safety by selecting from certified suppliers, including 9 with ISO9001, 1 with Other certification.