Broadband and low-loss mode scramblers using CO 2 -laser inscribed long-period gratings

• Published in: Optics letters Vol. 43; no. 12; p. 2868
• Main Authors: Zhao, Yunhe, Chen, Haoshuo, Fontaine, Nicolas K, Li, Jiaxiong, Ryf, Roland, Liu, Yunqi
• Format: Journal Article
• Language: English
• Published: United States 15.06.2018

We demonstrate broadband and low-loss three-mode and six-mode scramblers employing CO -laser inscribed long-period gratings (LPGs) for space-division multiplexing. Step-index (SI) few-mode fibers are used to avoid mode coupling to the cladding modes. We characterize the mode scramblers using a swept...