Variable Optical Filter Using Dynamic Grating in Er Doped Fiber Controlled by Synthesis of Optical Coherence Function: Proposal and Experimental Verification

Bing ZHU  Takashi SAIDA  Kazuo HOTATE  

Publication
IEICE TRANSACTIONS on Electronics   Vol.E86-C   No.1   pp.97-99
Publication Date: 2003/01/01
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Optoelectronics
Keyword: 
Erbium doped fiber,  gain grating,  absorption grating,  optical coherence function,  

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Summary: 
Due to saturable nature of gain or absorption of Er doped fiber, a dynamic grating is formed by standing wave produced by interference between two laser beams traveling in opposite directions in the fiber. In this letter, we propose a variable optical filter using the dynamic grating in Er doped fiber controlled by synthesis of optical coherence function. Simulations and experimental verifications are also shown.