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 | Fiber Standards | 
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 | B | ||
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 | Table  | |||
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| 
 | Description | Application | 
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| Standard | 
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| G.653 | 
 | Longer spans and extended reach. | 
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| 
 | Optimized for operation in the region | 
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| 
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 | from 1500 to  | 
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| G.654 | 
 | Extended  | 
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| 
 | Optimized for  | 
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| 
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 | transmission in the 1500 to  | 
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| 
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 | region, with low loss in the  | 
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| 
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 | band. | 
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| G.655 | 
 | Extended  | 
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 | Optimized for  | 
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| 
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| 
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 | (DWDM) operation in the region from | 
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| 
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 | 1500 to  | 
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