ORCID Profile
0000-0001-8263-8507
Current Organisation
City University of Hong Kong
Does something not look right? The information on this page has been harvested from data sources that may not be up to date. We continue to work with information providers to improve coverage and quality. To report an issue, use the Feedback Form.
In Research Link Australia (RLA), "Research Topics" refer to ANZSRC FOR and SEO codes. These topics are either sourced from ANZSRC FOR and SEO codes listed in researchers' related grants or generated by a large language model (LLM) based on their publications.
Atomic molecular and optical physics | Nanofabrication growth and self assembly | Astronomical instrumentation | Photonics optoelectronics and optical communications | Nonlinear optics and spectroscopy
Publisher: OSA
Date: 2018
Publisher: OSA
Date: 2019
Publisher: Optica Publishing Group
Date: 2020
DOI: 10.1364/CLEOPR.2020.P4_14
Abstract: We experimentally demonstrate integrated waveguide and micro-ring resonator polarizers incorporating two-dimensional layered graphene oxide films, with a high polarization dependent loss of 53.8 dB and a high polarization extinction ratio of 8.3 dB, respectively.
Publisher: Springer Science and Business Media LLC
Date: 06-01-2202
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 15-10-2018
Publisher: SPIE
Date: 02-01-2018
DOI: 10.1117/12.2282642
Publisher: SPIE
Date: 02-01-2018
DOI: 10.1117/12.2283456
Publisher: Optica Publishing Group
Date: 2020
DOI: 10.1364/CLEOPR.2020.C11E_4
Abstract: Two-dimensional layered graphene oxide films are integrated with micro-ring resonators to experimentally demonstrate enhanced four-wave mixing, achieving up to ~7.6-dB enhancement in conversion efficiency for a uniformly coated device and ~10.3-dB for a patterned device.
Publisher: AIP Publishing
Date: 24-10-2018
DOI: 10.1063/1.5045509
Abstract: We demonstrate enhanced four-wave mixing (FWM) in doped silica waveguides integrated with graphene oxide (GO) layers. Owing to strong mode overlap between the integrated waveguides and GO films that have a high Kerr nonlinearity and low loss, the FWM efficiency of the hybrid integrated waveguides is significantly improved. We perform FWM measurements for different pump powers, wavelength detuning, GO coating lengths, and number of GO layers. Our experimental results show good agreement with theory, achieving up to ∼9.5-dB enhancement in the FWM conversion efficiency for a 1.5-cm-long waveguide integrated with 2 layers of GO. We show theoretically that for different waveguide geometries an enhancement in FWM efficiency of ∼20 dB can be obtained in the doped silica waveguides and more than 30 dB in silicon nanowires and slot waveguides. This demonstrates the effectiveness of introducing GO films into integrated photonic devices in order to enhance the performance of nonlinear optical processes.
Publisher: IEEE
Date: 10-2019
Publisher: Wiley
Date: 11-03-2020
Publisher: IEEE
Date: 07-2021
Publisher: OSA
Date: 2016
Publisher: IEEE
Date: 10-2019
Publisher: The Optical Society
Date: 09-07-2012
DOI: 10.1364/OE.20.016671
Publisher: SPIE
Date: 03-2016
DOI: 10.1117/12.2218883
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 15-12-2019
Publisher: IEEE
Date: 07-2017
Publisher: IEEE
Date: 11-2017
Publisher: SPIE
Date: 05-03-2021
DOI: 10.1117/12.2584011
Publisher: OSA
Date: 2019
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 15-09-2020
Publisher: IEEE
Date: 07-2017
Publisher: Optica Publishing Group
Date: 2020
DOI: 10.1364/CLEOPR.2020.C7F_4
Abstract: We demonstrate RF channelizers based on 49GHz microcombs. 92 parallel channels and an instantaneous bandwidth of 8.08GHz are achieved for high-resolution RF spectral channelization. This approach is promising for integrated photonic RF receivers.
Publisher: IOP Publishing
Date: 16-10-2018
Publisher: SPIE
Date: 27-02-2019
DOI: 10.1117/12.2508120
Publisher: SPIE
Date: 16-02-2018
DOI: 10.1117/12.2292938
Publisher: Wiley
Date: 13-08-2019
Publisher: SPIE
Date: 03-2019
DOI: 10.1117/12.2506942
Publisher: SPIE
Date: 30-12-2019
DOI: 10.1117/12.2540379
Publisher: SPIE
Date: 30-12-2019
DOI: 10.1117/12.2540414
Publisher: The Optical Society
Date: 13-08-2015
DOI: 10.1364/OE.23.022087
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 15-01-2020
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 15-12-2021
Publisher: OSA
Date: 2017
Publisher: SPIE
Date: 18-02-2020
DOI: 10.1117/12.2544584
Publisher: Institution of Engineering and Technology
Date: 2019
DOI: 10.1049/CP.2019.0882
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 15-02-2019
Publisher: Optica Publishing Group
Date: 2020
DOI: 10.1364/CLEO_SI.2020.SM4L.5
Abstract: We experimentally demonstrate enhanced four-wave mixing in micro-ring resonators (MRRs) integrated with graphene oxide films. We achieve up to ~7.6-dB enhancement in conversion efficiency for a uniformly coated MRR and ~10.3-dB for a patterned device.
Publisher: OSA
Date: 2019
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 07-2018
Publisher: OSA
Date: 2017
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 11-2020
Publisher: SPIE
Date: 30-12-2019
DOI: 10.1117/12.2540180
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 04-2020
Publisher: OSA
Date: 2018
Publisher: SPIE
Date: 04-03-2019
DOI: 10.1117/12.2508152
Publisher: OSA
Date: 2018
Publisher: Springer Science and Business Media LLC
Date: 22-05-2020
DOI: 10.1038/S41467-020-16265-X
Abstract: Micro-combs - optical frequency combs generated by integrated micro-cavity resonators – offer the full potential of their bulk counterparts, but in an integrated footprint. They have enabled breakthroughs in many fields including spectroscopy, microwave photonics, frequency synthesis, optical ranging, quantum sources, metrology and ultrahigh capacity data transmission. Here, by using a powerful class of micro-comb called soliton crystals, we achieve ultra-high data transmission over 75 km of standard optical fibre using a single integrated chip source. We demonstrate a line rate of 44.2 Terabits s −1 using the telecommunications C-band at 1550 nm with a spectral efficiency of 10.4 bits s −1 Hz −1 . Soliton crystals exhibit robust and stable generation and operation as well as a high intrinsic efficiency that, together with an extremely low soliton micro-comb spacing of 48.9 GHz enable the use of a very high coherent data modulation format (64 QAM - quadrature litude modulated). This work demonstrates the capability of optical micro-combs to perform in demanding and practical optical communications networks.
Publisher: IOP Publishing
Date: 04-2021
DOI: 10.1088/1674-4926/42/4/041305
Abstract: We review recent work on narrowband orthogonally polarized optical RF single sideband generators as well as dual-channel equalization, both based on high- Q integrated ring resonators. The devices operate in the optical telecommunications C-band and enable RF operation over a range of either fixed or thermally tuneable frequencies. They operate via TE/TM mode birefringence in the resonator. We achieve a very large dynamic tuning range of over 55 dB for both the optical carrier-to-sideband ratio and the dual-channel RF equalization for both the fixed and tunable devices.
Publisher: IOP Publishing
Date: 04-2021
DOI: 10.1088/1674-4926/42/4/041302
Abstract: We review recent work on broadband RF channelizers based on integrated optical frequency Kerr micro-combs combined with passive micro-ring resonator filters, with microcombs having channel spacings of 200 and 49 GHz. This approach to realizing RF channelizers offers reduced complexity, size, and potential cost for a wide range of applications to microwave signal detection.
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 2023
Publisher: SPIE
Date: 07-03-2022
DOI: 10.1117/12.2607905
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 10-2018
Publisher: SPIE
Date: 30-12-2019
DOI: 10.1117/12.2540404
Publisher: AIP Publishing
Date: 09-2017
DOI: 10.1063/1.4989871
Abstract: We propose and experimentally demonstrate a microwave photonic intensity differentiator based on a Kerr optical comb generated by a compact integrated micro-ring resonator (MRR). The on-chip Kerr optical comb, containing a large number of comb lines, serves as a high-performance multi-wavelength source for implementing a transversal filter, which will greatly reduce the cost, size, and complexity of the system. Moreover, owing to the compactness of the integrated MRR, frequency spacings of up to 200-GHz can be achieved, enabling a potential operation bandwidth of over 100 GHz. By programming and shaping in idual comb lines according to calculated tap weights, a reconfigurable intensity differentiator with variable differentiation orders can be realized. The operation principle is theoretically analyzed, and experimental demonstrations of the first-, second-, and third-order differentiation functions based on this principle are presented. The radio frequency litude and phase responses of multi-order intensity differentiations are characterized, and system demonstrations of real-time differentiations for a Gaussian input signal are also performed. The experimental results show good agreement with theory, confirming the effectiveness of our approach.
Publisher: SPIE
Date: 30-12-2019
DOI: 10.1117/12.2540370
Publisher: Wiley
Date: 06-08-2020
Publisher: OSA
Date: 2019
Publisher: The Optical Society
Date: 24-10-2017
DOI: 10.1364/OL.42.004391
Publisher: Optica Publishing Group
Date: 2020
DOI: 10.1364/CLEO_SI.2020.SW4J.7
Abstract: We report photonic RF fractional Hilbert transformers and filters based on a 49GHz soliton crystal micro-comb source. By employing up to 80 wavelengths and controlling the channel weights, erse transfer functions are achieved.
Publisher: SPIE
Date: 05-03-0030
DOI: 10.1117/12.2584015
Publisher: OSA
Date: 2019
Publisher: AIP Publishing
Date: 02-2019
DOI: 10.1063/1.5080246
Publisher: SPIE
Date: 05-03-2021
DOI: 10.1117/12.2584014
Publisher: SPIE
Date: 18-04-2021
DOI: 10.1117/12.2588733
Publisher: SPIE
Date: 04-03-2019
DOI: 10.1117/12.2508146
Publisher: SPIE
Date: 05-03-2021
DOI: 10.1117/12.2584017
Publisher: OSA
Date: 2018
Publisher: SPIE
Date: 30-12-2019
DOI: 10.1117/12.2541201
Publisher: SPIE
Date: 30-12-2019
DOI: 10.1117/12.2541202
Publisher: OSA
Date: 2019
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 15-11-2020
Publisher: OSA
Date: 2019
Publisher: The Optical Society
Date: 12-04-2018
DOI: 10.1364/PRJ.6.000B30
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 11-2023
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 12-2020
Publisher: SPIE
Date: 30-12-2019
DOI: 10.1117/12.2540360
Publisher: SPIE
Date: 05-03-2022
DOI: 10.1117/12.2607903
Publisher: OSA
Date: 2018
Publisher: Optica Publishing Group
Date: 24-10-2023
DOI: 10.1364/OE.503072
Publisher: The Optical Society
Date: 24-01-2018
DOI: 10.1364/OE.26.002569
Publisher: OSA
Date: 2016
Publisher: Optica Publishing Group
Date: 2020
DOI: 10.1364/CLEOPR.2020.C6F_1
Abstract: We investigate the performance of soliton crystal micro-comb lines as local oscillators, by emulating degradation through noise loading. We show a 0.3 b/symbol penalty for the minimum comb OSNR on a 64QAM signal.
Start Date: 2023
End Date: 12-2029
Amount: $34,948,820.00
Funder: Australian Research Council
View Funded Activity