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All-fiber dissipative soliton laser with 10.2 nJ pulse energy using an evanescent field interaction with graphene saturable absorber

Cited 64 time in Web of Science Cited 77 time in Scopus

Choi, Sun Young; Jeong, Hwanseong; Hong, Byung Hee; Rotermund, Fabian; Yeom, Dong-Il

Issue Date
Wiley - VCH Verlag GmbH & CO. KGaA
Laser Physics Letters, Vol.11 No.1, p. 015101
We demonstrate a high-power dissipative soliton fiber laser by employing an evanescent field-coupled graphene saturable absorber (SA). In the SA, a polymer supporter enhances the nonlinear interaction between the guided mode and the high-quality graphene layers, which enables high-power operation of the mode-locked laser in the normal dispersion regime of the laser cavity. A self-started dissipative soliton fiber laser stably generates pulses with a spectral bandwidth of 10.4 nm at 1565 nm. The linearly chirped pulse of the laser output has a pulse duration of 13.8 ps at a repetition rate of 16.99 MHz. The maximum output power achieved is 174 mW using a single-mode pump laser diode with an applied power of 785 mW. The pulse energy is estimated to be 10.2 nJ; we believe this is the highest pulse energy ever reported for an Er-doped dissipative soliton fiber laser oscillator using a graphene SA.
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  • College of Natural Sciences
  • Department of Chemistry
Research Area Physics


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