Title

Tunable Multimode-Interference Bandpass Fiber Filter

Abstract

We report on a wavelength-tunable filter based on multimode interference (MMI) effects. A typical MMI filter consists of a multimode fiber (MMF) spliced between two single-mode fibers (SMF). The peak wavelength response of the filter exhibits a linear dependence when the length of the MMF is modified. Therefore a capillary tube filled with refractive-index-matching liquid is used to effectively increase the length of the MMF, and thus wavelength tuning is achieved. Using this filter a ring-based tunable erbium-doped fiber laser is demonstrated with a tunability of 30 nm, covering the full C-band. © 2010 Optical Society of America.

Publication Date

2-1-2010

Publication Title

Optics Letters

Volume

35

Issue

3

Number of Pages

324-326

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1364/OL.35.000324

Socpus ID

75749100268 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/75749100268

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