C- and L-Band Parallel Configuration Optical Fiber Amplifier Employing Bundled Er3+-Doped Fiber

Makoto YAMADA  Masaharu UNO  Hirotaka ONO  

IEICE TRANSACTIONS on Communications   Vol.E95-B   No.10   pp.3294-3297
Publication Date: 2012/10/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E95.B.3294
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Fiber-Optic Transmission for Communications
optical fiber amplifier,  multi-core amplifiers,  multi-core fiber,  bundled type Er3+-doped fiber,  C- and L-band parallel type optical fiber amplifier,  

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We propose a new configuration for a parallel fiber amplifier that can amplify both the C- and L-bands simultaneously by employing bundled Er3+-doped fiber (EDF). The bundled EDF is a candidate amplification medium for multi-core optical fiber amplifiers. Our parallel fiber amplifier is another application of the multi-core amplification medium. The amplifier achieves almost the same signal gain of 20 dB for both the C- and L-bands by using a bundled EDF, which is realized by bundling seven identical single-core EDFs.