Graphene Oxide for Integrated Photonics and Flat Optics

Wu, Jiayang; Jia, Litao; Zhang, Yuning; Qu, Yang; Jia, Baohua; Moss, David J.

doi:10.1002/adma.202006415

Cited by 157 publications

(177 citation statements)

References 217 publications

(504 reference statements)

Supporting

Mentioning

177

Contrasting

Order By: Relevance

“…Design of silicon waveguides with integrated graphene oxide films for nonlinear optics Yuning Zhang, Jiayang Wu, Member, IEEE, Yang Qu, Linnan Jia, Baohua Jia, Fellow, OSA and David J. Moss, Fellow, IEEE, Fellow, OSA T To overcome these limitations, two-dimensional (2D) materials that exhibit an ultrahigh optical nonlinearity, such as graphene [80,81], graphene oxide (GO) [82,83], black phosphorus [84,85], and transition metal dichalcogenides (TMDCs) [86,87], have been integrated onto chips to enhance the nonlinear optical performance. Amongst the different 2D materials, GO has become highly promising due to its ease of preparation as well as the flexibility in tuning its material properties [88][89][90][91][92][93][94]. Previously, GO has been shown to have a giant Kerr nonlinearity -about 4 orders of magnitude higher than silicon [92,95].…”

Section: Introductionmentioning

confidence: 99%

Design of silicon waveguides with integrated graphene oxide films for nonlinear optics

Zhang¹,

Wu²,

Qu³

et al. 2021

Preprint

Self Cite

View full text Add to dashboard Cite

The Kerr nonlinear optical performance of silicon nanowire waveguides integrated with 2D layered graphene oxide (GO) films is theoretically studied and optimized based on experimentally measured linear and nonlinear optical parameters of the GO films. The strong mode overlap between the silicon nanowires and highly nonlinear GO films yields a significantly enhanced Kerr nonlinearity for the hybrid waveguides. A detailed analysis for the influence of waveguide geometry and GO film thickness on the propagation loss, nonlinear parameter, and nonlinear figure of merit (FOM) is performed. The results show that the effective nonlinear parameter and nonlinear FOM can be increased by up to ~ 52 and ~ 79 times relative to bare silicon nanowires, respectively. Self-phase modulation (SPM)-induced spectral broadening of optical pulses is used as a benchmark to evaluate the nonlinear performance, examining the trade-off between enhancing Kerr nonlinearity and minimizing loss. By optimizing the device parameters to balance this, a high spectral broadening factor of 27.8 can be achieved ‒ more than 6 times that achieved in previous experiments. Finally, the influence of pulse chirp, material anisotropy, and the interplay between saturable absorption and SPM is also discussed, together with the comparison between the spectral broadening after going through GO-coated and graphene-coated silicon waveguides. These results provide useful guidance for optimizing the Kerr nonlinear optical performance of silicon waveguides integrated with 2D layered GO films.

show abstract

Section: Introductionmentioning

confidence: 99%

Design of silicon waveguides with integrated graphene oxide films for nonlinear optics

Zhang¹,

Wu²,

Qu³

et al. 2021

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…In the GO coated segment, the idler power reaches a maximum at L = 4.5 mm due to the trade-off between γ and loss, whereas in the uncoated segment the idler power This further confirms that the enhancement in the Kerr nonlinearity dominates for short film lengths whereas the loss dominates for long GO film lengths. It also provides a criteria for choosing the optimized GO film length in order to maximize the output idler power and hence the CE, and has implications for more advanced photonic integrated circuits [51][52][53] as well as for applications based on SiN and Hydex devices for microwave photonics, data communications, neural networks and many other applications .…”

Section: Discussionmentioning

confidence: 99%

Design of SiN waveguides integrated with graphene oxide films for nonlinear optics

Zhang

et al. 2021

Preprint

Self Cite

View full text Add to dashboard Cite

We theoretically investigate and optimize four-wave mixing (FWM) in silicon nitride (SiN) waveguides integrated with two-dimensional (2D) layered graphene oxide (GO) films. Based on extensive previous measurements of the material parameters of the GO films, we perform detailed analysis for the influence of device parameters including waveguide geometry, GO film thickness, length, and coating position on the FWM conversion efficiency (CE) and conversion bandwidth (CB). The influence of dispersion and photo-thermal changes in the GO films is also discussed. Owing to the strong mode overlap between the SiN waveguides and the highly nonlinear GO films, FWM in the hybrid waveguides can be significantly enhanced. We obtain good agreement with previous experimental results and show that by optimizing the device parameters to balance the trade-off between Kerr nonlinearity and loss, the FWM CE can be improved by as much as ~20.7 dB and the FWM CB can be increased by ~4.4 folds, relative to the uncoated waveguides. These results highlight the significantly enhanced FWM performance that can be achieved in SiN waveguides by integrating 2D layered GO films.

show abstract

“…Finally, this work could have applications to nonlinear devices [20][21][22][23][24][25][26][27][28][29][30] as well as to microwave photonic chips and integrated quantum optics [64-] where advanced optical filter shapes are extremely useful.…”

Section: Varied Resonance Mode Splittingmentioning

confidence: 99%

Spectral Shaping Based via IntegratedCoupled Sagnac Loop Reflectors in a Self-Coupled Nanowire

Arianfard¹,

Wu²,

Juodkazis³

et al. 2021

Preprint

Self Cite

View full text Add to dashboard Cite

We propose and theoretically investigate integrated photonic filters based on coupled Sagnac loop reflectors (SLRs) formed by a self-coupled wire waveguide. By tailoring coherent mode interference in the device, three different filter functions are achieved, including Fano-like resonances, wavelength interleaving, and varied resonance mode splitting. For each function, the impact of device structural parameters is analyzed to facilitate optimized performance. Our results theoretically verify the proposed device as a compact multi-functional integrated photonic filter for flexible spectral shaping.

show abstract

Graphene Oxide for Integrated Photonics and Flat Optics

Cited by 157 publications

References 217 publications

Design of silicon waveguides with integrated graphene oxide films for nonlinear optics

Design of silicon waveguides with integrated graphene oxide films for nonlinear optics

Design of SiN waveguides integrated with graphene oxide films for nonlinear optics

Spectral Shaping Based via IntegratedCoupled Sagnac Loop Reflectors in a Self-Coupled Nanowire

Contact Info

Product

Resources

About