Advanced Photonics, Volume. 5, Issue 3, 036004(2023)

Tailoring light on three-dimensional photonic chips: a platform for versatile OAM mode optical interconnects

Jue Wang1,2、†, Chengkun Cai1,2, Feng Cui1,2, Min Yang1,2, Yize Liang1,2, and Jian Wang1,2、*
Author Affiliations
  • 1Huazhong University of Science and Technology, Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information, Wuhan, China
  • 2Optics Valley Laboratory, Wuhan, China
  • show less
    Figures & Tables(5)
    (a) Multiple physical dimensions of light waves: from traditional ones to the spatial domain (e.g., OAM modes). (b) Concept of 3D photonic chips fabricated by FSLW for tailoring spatial modes (OAM generation/multiplexing/exchange). (c) Fabrication setup for FSLW.
    On-chip OAM mode generator. (a) Concept and principle of the trench-based OAM generator. (b) Structure of trench waveguide and its supporting higher-order modes. (c) Simulated LP-like modes and their synthesized OAM modes. (d) Experimental results of OAM generator with different trench locations: (d1) trench facet images captured by an optical microscope, (d2) measured mode profiles, and (d3) measured interferograms (interference with a reference Gaussian beam). Scale bar, 20 μm.
    On-chip OAM mode multiplexer. (a) Concept and principle of the trench-based OAM mode multiplexer. (b) Structure of the trench waveguide and the supported higher-order eigenmodes (TE01 and TE10). (c) Simulation results of OAM mode multiplexer and exchanger. (d) Experimental results of OAM mode multiplexer and exchanger. Scale bar, 20 μm.
    (a) Middle, photo of the packaged on-chip OAM mode multiplexer and demultiplexer. Left, zoom-in view of the OAM mode multiplexer. Right, zoom-in view of the OAM mode demultiplexer. (b) Experimental setup for chip–chip optical interconnects with OAM modes. PC, polarization controller; EDFA, erbium-doped fiber amplifier; AWG, arbitrary waveform generator; OC, optical coupler; SMF, single-mode fiber; and VOA, variable optical attenuator. (c) Measured crosstalk matrix. (d) Measured BER performance and constellations.
    (a) Photos of the packaged on-chip OAM mode multiplexer (left), OAM mode demultiplexer (middle), and unpackaged OAM mode (de)multiplexers (right) in the silica substrate. (b) Experimental setup for chip–fiber–chip optical interconnects with OAM modes. (c) Measured intensity profiles of OAM modes after propagating through the 2-km OAM fiber. (d) Measured crosstalk matrix. (e) Measured BER performance and constellations.
    Tools

    Get Citation

    Copy Citation Text

    Jue Wang, Chengkun Cai, Feng Cui, Min Yang, Yize Liang, Jian Wang, "Tailoring light on three-dimensional photonic chips: a platform for versatile OAM mode optical interconnects," Adv. Photon. 5, 036004 (2023)

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Category: Research Articles

    Received: Feb. 3, 2023

    Accepted: Apr. 13, 2023

    Posted: Apr. 14, 2023

    Published Online: May. 26, 2023

    The Author Email: Jian Wang (jwang@hust.edu.cn)

    DOI:10.1117/1.AP.5.3.036004

    Topics