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Higher-Order Modes of Fibers: a Solution for Single-Mode Guidance with Large Mode Area?
Thu, 2006-10-05 09:19 ? Yan
A recent paper proposes a new solution for achieving robust single-mode guidance in fibers with very large mode area. The basic idea is to convert the fundamental mode to a higher-order mode with a large mode area and then convert the light back to the fundamental mode at the end. The mode conversion can be done with a long-period fiber Bragg grating. The article discusses this idea and its limitations. [The Photonics Spotlight]
Similar idea had been proposed for broad area solid state lasers. Does it practical?
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