Graphite saturable absorber based on the pencil-sketching method for Q-switching of an erbium fiber laser

Jinho Lee; Junsu Lee; Joonhoi Koo; Ju Han Lee

doi:10.1364/AO.55.000303

Graphite saturable absorber based on the pencil-sketching method for Q-switching of an erbium fiber laser

Jinho Lee, Junsu Lee, Joonhoi Koo, Ju Han Lee

School of Electrical and Computer Engineering

University of Seoul

Research output: Contribution to journal › Article › peer-review

28 Scopus citations

Abstract

We experimentally demonstrate a practical and simple method for the preparation of a graphite-based, fiberized saturable absorber (SA). Our SA is prepared by using a low-cost graphite-core pencil that is commercially available from stationary stores to uniformly shade the flat end of a fiber ferrule. The saturable-absorption performance of the prepared SA was experimentally tested, and the feasibility of using the SA as a passive Q-switch was investigated through its incorporation into an erbium-doped-fiber ring cavity. The modulation depth of the SA is ∼1%, and the Q-switched pulses of a 1.98 μs temporal width were readily obtained at a repetition rate of 46.08 kHz.

Original language	English
Pages (from-to)	303-309
Number of pages	7
Journal	Applied Optics
Volume	55
Issue number	2
DOIs	https://doi.org/10.1364/AO.55.000303
State	Published - 10 Jan 2016

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title = "Graphite saturable absorber based on the pencil-sketching method for Q-switching of an erbium fiber laser",

abstract = "We experimentally demonstrate a practical and simple method for the preparation of a graphite-based, fiberized saturable absorber (SA). Our SA is prepared by using a low-cost graphite-core pencil that is commercially available from stationary stores to uniformly shade the flat end of a fiber ferrule. The saturable-absorption performance of the prepared SA was experimentally tested, and the feasibility of using the SA as a passive Q-switch was investigated through its incorporation into an erbium-doped-fiber ring cavity. The modulation depth of the SA is ∼1%, and the Q-switched pulses of a 1.98 μs temporal width were readily obtained at a repetition rate of 46.08 kHz.",

author = "Jinho Lee and Junsu Lee and Joonhoi Koo and Lee, {Ju Han}",

note = "Publisher Copyright: {\textcopyright} 2016 Optical Society of America.",

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T1 - Graphite saturable absorber based on the pencil-sketching method for Q-switching of an erbium fiber laser

AU - Lee, Jinho

AU - Lee, Junsu

AU - Koo, Joonhoi

AU - Lee, Ju Han

PY - 2016/1/10

Y1 - 2016/1/10

N2 - We experimentally demonstrate a practical and simple method for the preparation of a graphite-based, fiberized saturable absorber (SA). Our SA is prepared by using a low-cost graphite-core pencil that is commercially available from stationary stores to uniformly shade the flat end of a fiber ferrule. The saturable-absorption performance of the prepared SA was experimentally tested, and the feasibility of using the SA as a passive Q-switch was investigated through its incorporation into an erbium-doped-fiber ring cavity. The modulation depth of the SA is ∼1%, and the Q-switched pulses of a 1.98 μs temporal width were readily obtained at a repetition rate of 46.08 kHz.

AB - We experimentally demonstrate a practical and simple method for the preparation of a graphite-based, fiberized saturable absorber (SA). Our SA is prepared by using a low-cost graphite-core pencil that is commercially available from stationary stores to uniformly shade the flat end of a fiber ferrule. The saturable-absorption performance of the prepared SA was experimentally tested, and the feasibility of using the SA as a passive Q-switch was investigated through its incorporation into an erbium-doped-fiber ring cavity. The modulation depth of the SA is ∼1%, and the Q-switched pulses of a 1.98 μs temporal width were readily obtained at a repetition rate of 46.08 kHz.

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JO - Applied Optics

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ER -

Graphite saturable absorber based on the pencil-sketching method for Q-switching of an erbium fiber laser

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