Reflective graphene oxide absorber for passively mode-locked laser operating at nearly 1 μm

Abstract

A low cost and simply fabricated reflective graphene oxide is successfully made. By using this absorber, as well as an end reflector, we obtain a passively mode-locked Yb:LuYSiO5 laser operating at nearly 1 μm. When the pump power is increased up to 5.73 W, stable mode locking is achieved. The central wavelength of the laser spectrum is 1043.2 nm with a pulse duration of 5.0 ps. When the pump power reaches 8.16 W, dual-wavelength mode locking laser pulses at 1036.3 nm and 1043.5 nm are simultaneously detected.

Metal-enhanced fluorescence of graphene oxide by palladium nanoparticles in the blue–green part of the spectrum

“…[1,2] Graphite has been used for the preparation of GO, which in turn is widely used as a precursor for the synthesis of reduced GO. [3] Due to its unique electronic, thermal, and mechanical properties, GO has been used in different applications such as developing sensors, [4] medical applications, [5,6] ultrafast lasers, [7,8] etc. GO consists of intact graphitic regions interspersed with sp 3 -hybridized carbons containing carboxyl, hydroxyl, and epoxide functional groups on the edge, top, and bottom surface of each sheet and sp 2 -hybridized carbons on the aromatic network (Fig.…”

A 1.7-ps pulse mode-locked Yb 3 + :Sc 2 SiO 5 laser with a reflective graphene oxide saturable absorber

“…Many GO-based pulsed lasers have been reported recently. [28][29][30][31] Yb:Sc 2 SiO 5 (Yb:SSO) is one of the oxyorthosilicate laser crystals, which exhibits exciting advantages of large energylevel splitting, high thermal conductivity, and broad absorption bandwidth. Furthermore, Yb:SSO has the advantage of a negative thermal dispersion index of −6.3 × 10 −6 K −1 , [32] which can partly compensate for the thermal expansion.…”

Passive harmonic mode-locking of Er-doped fiber laser using CVD-grown few-layer MoS 2 as a saturable absorber

“…Since the first demonstration of graphene mode-locking, [2,3] graphene has been successfully exploited as an excellent saturable absorber (SA) for passive Q-switching and modelocking applications in a broadband spectral range. [4][5][6][7][8] The success of graphene has greatly encouraged scientific researchers to explore other graphene-like two-dimensional (2D) nanomaterials, such as atomic layered transition-metal dichalcogenides (TMDs) for photonic applications. [9,10] 2D molybdenum disulfide (MoS 2 ) is a representative material of TMDs, [11] which is now attracting continuous attention due to its exceptional optical properties, including saturable absorption behavior [12] and ultrafast carrier dynamics.…”