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Question hand written solution required hand written solution required Image transcription textThe power amplification stage of a thulium doped fiber laser requires a pump combiner (WDM) to mix thepump of 793 nm and the seed of 1850 nm. The pump combiner is made by fusing together the cladding of twosilica fibers, in a way that super-modes are formed. The difference of effective index between the … Show more… Show more Science Physics Share QuestionEmailCopy link Comments (0)