High-quality, large-area monolayer graphene for efficient bulk laser mode-locking near 125 μm

Won Bae Cho, Jun Wan Kim, Hwang Woon Lee, Sukang Bae, Byung Hee Hong, Sun Young Choi, In Hyung Baek, Kihong Kim, Dong‐Il Yeom, Fabıan Rotermund

Optics Letters · 2011 · 129 citations · 16 references

Concepts

Abstract

was synthesized by chemical vapor deposition and used as a transmitting saturable absorber for efficient passive mode-locking of a femtosecond bulk solid-state laser. The monolayer graphene mode-locked Cr:forsterite laser was tunable around 1.25 μm and delivered sub-100 fs pulses with output powers up to 230 mW. The nonlinear optical characteristics of the monolayer graphene saturable absorber and the mode-locked operation were then compared with the case of the bilayer graphene saturable absorber.

References

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