456-mW graphene Q-switched Yb:yttria waveguide laser by evanescent-field interaction

Choudhary, Amol; Beecher, Stephen J.; Dhingra, Shonali; D’Urso, Brian; Parsonage, Tina L.; Grant-Jacob, James; Hua, Ping-Rang; Mackenzie, Jacob I.; Eason, R.W.; Shepherd, D.P.

doi:10.1364/ol.40.001912

Cited by 28 publications

(15 citation statements)

References 25 publications

(30 reference statements)

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“…In 2013, the researchers fabricated a graphene SAM and applied it to a single‐chip waveguide laser to obtain the mode‐locked pulses with a pulse width of 1.06 ps and a repetition rate of 1.5 GHz, as shown in Figure . Since then, waveguide lasers using layered materials such as graphene, Bi 2 Se 3 , TMDCs, and BP have been further developed, as shown in Table . It can be seen that, for Q‐switching operation, the minimum pulse width and maximum pulse energy are 25.2 ns and 310 nJ, respectively.…”

Section: Versatile Pulsed Lasers Using 2d Layered Materialsmentioning

confidence: 99%

“…Since then, waveguide lasers using layered materials such as graphene, Bi 2 Se 3 , TMDCs, and BP have been further developed, as shown in Table . It can be seen that, for Q‐switching operation, the minimum pulse width and maximum pulse energy are 25.2 ns and 310 nJ, respectively. For example, the researchers achieved the Q‐switching operation in a Nd:YAG ceramic channel waveguide laser based on Bi 2 Se 3 SA, as shown in Figure .…”

Section: Versatile Pulsed Lasers Using 2d Layered Materialsmentioning

confidence: 99%

See 1 more Smart Citation

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

Guo

Xiao

Wang

et al. 2019

Laser & Photonics Reviews

388

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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Section: Versatile Pulsed Lasers Using 2d Layered Materialsmentioning

confidence: 99%

Section: Versatile Pulsed Lasers Using 2d Layered Materialsmentioning

confidence: 99%

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

Guo

Xiao

Wang

et al. 2019

Laser & Photonics Reviews

388

197

View full text Add to dashboard Cite

show abstract

“…-doped hosts) [16,23]. Two absorber geometries have been studied, the first based on transmission-type SA and the second based on evanescent-field interaction with the SA.…”

Section: +mentioning

confidence: 99%

Graphene Q-switched Tm:KY(WO₄)₂waveguide laser

et al. 2017

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We report on the first Tm 3+ -doped double tungstate waveguide laser passively Q-switched by a graphene saturable absorber using a 12.4 µm-thick 3 at.% Tm:KY 0.58 Gd 0.22 Lu 0.17 (WO 4 ) 2 epitaxial layer grown on a (0 1 0)-oriented pure KY(WO 4 ) 2 substrate. This laser generated 5.8 nJ/195 ns pulses at 1831.8 nm corresponding to a pulse repetition frequency of 1.13 MHz. These are the shortest pulses achieved in passively Q-switched Tm waveguide lasers. The laser slope efficiency was 9% and the Q-switching conversion efficiency reached 45%. Graphene is promising for the generation of ns pulses at ~2 µm in Tm 3+ -doped double tungstate waveguide lasers operating in the MHz-range.

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“…For instance, how to produce the pulsed laser with high peak power is an important question for super-resolution bio-imaging microscopy and advanced materials processing91011. Among all the methods, the passive Q-switching based on saturable absorption is more promising to produce such high power output1213141516. However, the intra-cavity intensity of the waveguide laser is commonly lower than several megawatts per square centimeter (MW/cm 2 ), which is below the saturation intensity of most saturable absorbers.…”

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confidence: 99%

Tunable Picosecond Laser Pulses via the Contrast of Two Reverse Saturable Absorption Phases in a Waveguide Platform

Tan

Chen

Wang

et al. 2016

Sci Rep

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How to enhance the optical nonlinearity of saturable absorption materials is an important question to improve the functionality of various applications ranging from the high power laser to photonic computational devices. We demonstrate the saturable absorption (SA) of VO2 film attributed to the large difference of optical nonlinearities between the two states of the phase-transition materials (VO2). Such VO2 film demonstrated significantly improved performance with saturation intensity higher than other existing ultrathin saturable absorbers by 3 orders due to its unique nonlinear optical mechanisms in the ultrafast phase change process. Owing to this feature, a Q-switched pulsed laser was fabricated in a waveguide platform, which is the first time to achieve picosecond pulse duration and maintain high peak power. Furthermore, the emission of this VO2 waveguide laser can be flexibly switched between the continuous-wave (CW) and pulsed operation regimes by tuning the temperature of the VO2 film, which enables VO2-based miniature laser devices with unique and versatile functions.

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456-mW graphene Q-switched Yb:yttria waveguide laser by evanescent-field interaction

Cited by 28 publications

References 25 publications

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

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

Graphene Q-switched Tm:KY(WO₄)₂waveguide laser

Tunable Picosecond Laser Pulses via the Contrast of Two Reverse Saturable Absorption Phases in a Waveguide Platform

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456-mW graphene Q-switched Yb:yttria waveguide laser by evanescent-field interaction

Cited by 28 publications

References 25 publications

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

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

Graphene Q-switched Tm:KY(WO4)2waveguide laser

Tunable Picosecond Laser Pulses via the Contrast of Two Reverse Saturable Absorption Phases in a Waveguide Platform

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Graphene Q-switched Tm:KY(WO₄)₂waveguide laser