59 GHz graphene based q-switched modelocked mid-infrared monolithic waveguide laser

Thorburn, Fiona; Lancaster, Adam; McDaniel, Sean A.; Cook, Gary; Kar, A. K.

doi:10.1364/oe.25.026166

Cited by 37 publications

(10 citation statements)

References 37 publications

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“…As can be seen, the measured fundamental repetition rate is 10.53 GHz with signal-to-noise ratio of 44.6 dB. As for the operation of the mode-locked waveguide lasers in the Q-switched mode-locked regime, this work obtains the relatively higher repetition rate compared with those reported in some past works [21,[30][31][32][52][53][54]. Compared with the mode-locked laser obtained by attaching the separate graphene SA on a Nd:YAG waveguide system (pulse duration of 16 ps, repetition rate of 11.3 GHz and maximum output power of 12 mW), the combined system with the encapsulated Ag NPs proposed in the current work exhibits comparable mode-locking performances (e.g.…”

Section: Resultsmentioning

confidence: 55%

“…By applying the saturable absorbers (SAs) of lowdimensional materials, such as nanoparticles, carbon nanotubes, or two-dimensional (2D) materials (graphene, MoS2, black phosphorus, heterostructures, among others, the Q-switched, Q-switched mode-locked and CW modelocked lasers have been achieved [24][25][26][27][28][29]. Particularly, the mode-locked waveguide lasers with pulse repetition frequencies up to the GHz level have attracted great attention for their applications in precision metrology, ultrafast nonlinear spectroscopy and high-speed optical communication [2,[30][31][32][33]. Owing to the high stability and spectral purity, GHz fundamental mode-locked lasers are ideal in meeting the demand of related practical applications.…”

Section: Introductionmentioning

confidence: 99%

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Monolithic waveguide laser mode-locked by embedded Ag nanoparticles operating at 1 μm

Pang

et al. 2019

Nanophotonics

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Monolithic waveguide laser devices are required to achieve on-chip lasing. In this work, a new design of a monolithic device with embedded Ag nanoparticles (NPs) plus the Nd:YAG ridge waveguide has been proposed and implemented. By using Ag+ ion implantation, the embedded Ag NPs are synthesized on the near-surface region of the Nd:YAG crystal, resulting in the significant enhancement of the optical nonlinearity of Nd:YAG and offering saturable absorption properties of the crystal at a wide wavelength band. The subsequent processing of the O5+ ion implantation and diamond saw dicing of crystal finally leads to the fabrication of monolithic waveguide with embedded Ag NPs. Under an optical pump, the Q-switched mode-locked waveguide lasers operating at 1 μm is realized with the pulse duration of 29.5 ps and fundamental repetition rate of 10.53 GHz, owing to the modulation of Ag NPs through evanescent field interaction with waveguide modes. This work introduces a new approach in the application of monolithic ultrafast laser devices by using embedded metallic NPs.

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Section: Resultsmentioning

confidence: 55%

Section: Introductionmentioning

confidence: 99%

Monolithic waveguide laser mode-locked by embedded Ag nanoparticles operating at 1 μm

Pang

et al. 2019

Nanophotonics

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“…In 2013, the researchers fabricated a graphene SAM and applied it to a single-chip waveguide laser to obtain the modelocked pulses with a pulse width of 1.06 ps and a repetition rate of 1.5 GHz, [575] as shown in Figure 19. Since then, waveguide lasers using layered materials such as graphene, [576][577][578][579][580][581][582][583][584][585] Bi 2 Se 3 , [586,587] TMDCs, [588][589][590][591][592] and BP [593,594] have been further developed, as shown in Table 6. It can be seen that, for Q-switching operation, the minimum pulse width and maximum pulse energy are 25.2 ns [576] and 310 nJ, [579] respectively.…”

Section: Waveguide/disk Lasersmentioning

confidence: 99%

2D Layered Materials: Synthesis, Nonlinear Optical Properties, and Device Applications

Guo

Xiao

Wang

et al. 2019

Laser & Photonics Reviews

420

197

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In recent years, 2D layered materials, including graphene, topological insulators, transition metal dichalcogenides, black phosphorus, MXenes, graphitic carbon nitride, and metal‐organic frameworks, have attracted considerable interest due to their potential applications in the fields of physics, chemistry, biology, and energy. Their rise in the field of nonlinear photonics began around 2009 and has become an important research direction. Here, the synthesis techniques, nonlinear optical properties, integration strategies, and device applications of layered materials are reviewed. In terms of nonlinear optical properties, the focus is on saturable absorption and Kerr nonlinearity. On this basis, their applications in various pulsed lasers, including fiber lasers, solid‐state lasers, waveguide lasers, and related nonlinear optical phenomenon, are summarized. In addition, novel optical devices using layered materials, such as optical modulators, optical polarizers, optical switchers, and even all‐optical device, are also involved. It is believed that the development of 2D layered materials in the field of photonics will continue to deepen, thus laying a good foundation for its practical application.

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“…The core diameter normally ranges between 25 and 150 μm so that it is possible the guidance of both monomode and multimode laser radiation for both TM and TE polarizations, from the visible to the IR region. These characteristics allow a better coupling to the waveguides, low propagation losses and a more efficient laser action in materials doped with Rare Earths (RE) [40][41][42][43][44][59][60][61][62].…”

Section: Ultrafast Laser Inscriptionmentioning

confidence: 99%

Ultrafast Laser Inscription of Buried Waveguides in W-TCP Bioactive Eutectic Glasses

Sola¹,

Peña²

2018

Advanced Surface Engineering Research

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Since the first report of Davis in 1996, ultrafast laser inscription (ULI) has been widely used to fabricate buried optical devices such as active and passive waveguides inside dielectric materials. In this technique, ultra-short and ultra-intense laser pulses are tightly focused inside transparent materials leading to laser-induced nonlinear processes in the focal volume. The energy density deposited into the submicron focal volume can reach several of MJcm −3 and hence, may trigger dramatic changes in a strongly localized region, whereas the surrounding bulk material remains unchanged. This technique can be used from void formation to weak refractive index modification, which is the key feature to create buried optical waveguides. In this chapter, firstly, we review the fundamentals of the ultrafast laser inscription technique to produce optical waveguides inside dielectric materials such as crystals and glasses. Next, as an example, we revise the application of this technique to create buried waveguides inside bioactive glasses and specifically, inside W-TCP eutectic glasses.

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59 GHz graphene based q-switched modelocked mid-infrared monolithic waveguide laser

Cited by 37 publications

References 37 publications

Monolithic waveguide laser mode-locked by embedded Ag nanoparticles operating at 1 μm

Monolithic waveguide laser mode-locked by embedded Ag nanoparticles operating at 1 μm

2D Layered Materials: Synthesis, Nonlinear Optical Properties, and Device Applications

Ultrafast Laser Inscription of Buried Waveguides in W-TCP Bioactive Eutectic Glasses

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