All-fiberized, femtosecond laser at 1912 nm using a bulk-like MoSe 2 saturable absorber

Jinho Lee, Joonhoi Koo, Junsu Lee, Young Min Jhon, Ju Han Lee

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

An all-fiberized, mode-locked fiber laser that operates in the 1912 nm region with a saturable absorber (SA) that is based on a composite consisting of bulk-like, molybdenum diselenide (MoSe 2 ) particles and polyvinyl alcohol (PVA), is experimentally demonstrated here. The MoSe 2 particles were prepared using liquid phase exfoliation (LPE) without a centrifugation. The SA was implemented on a side-polished fiber platform and deposited with the MoSe 2 /PVA. The saturation power and modulation depth of the SA were measured as ~25.7 W and ~4.4%, respectively. Using the prepared SA, the stable soliton pulses with a temporal width of ~920 fs could be produced at 1912 nm from a thulium-holmium (Tm-Ho) co-doped fiber ring cavity. The mode-locked pulses were operated at a repetition rate of ~18.21 MHz, and a 3-dB bandwidth was measured as ~4.62 nm. The signal-to-noise ratio (SNR) was measured as ~65 dB at the fundamental frequency of ~18.21 MHz. To the best of the authors' knowledge this is the first time demonstration of the use of a saturable absorber based on a transition metal dichalcogenide for femtosecond mode-locking of a 2-μm fiber laser.

Original languageEnglish
Pages (from-to)2968-2979
Number of pages12
JournalOptical Materials Express
Volume7
Issue number8
DOIs
Publication statusPublished - 2017 Jan 1

Fingerprint

Saturable absorbers
Ultrashort pulses
Polyvinyl Alcohol
Polyvinyl alcohols
Thulium
Holmium
Mode-locked fiber lasers
Laser mode locking
Molybdenum
Centrifugation
Fibers
Fiber lasers
Solitons
Transition metals
Laser pulses
Signal to noise ratio
Demonstrations
Modulation
Bandwidth
Composite materials

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials

Cite this

Lee, Jinho ; Koo, Joonhoi ; Lee, Junsu ; Jhon, Young Min ; Lee, Ju Han. / All-fiberized, femtosecond laser at 1912 nm using a bulk-like MoSe 2 saturable absorber In: Optical Materials Express. 2017 ; Vol. 7, No. 8. pp. 2968-2979.
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All-fiberized, femtosecond laser at 1912 nm using a bulk-like MoSe 2 saturable absorber . / Lee, Jinho; Koo, Joonhoi; Lee, Junsu; Jhon, Young Min; Lee, Ju Han.

In: Optical Materials Express, Vol. 7, No. 8, 01.01.2017, p. 2968-2979.

Research output: Contribution to journalArticle

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