Volume 16 Issue 5
Sep.  2023
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WANG Fang, LIU Hua, MA Tao, MA Shou-dao, LIU Yu-fang. Double-slot ultra-compact polarization beam splitter based on asymmetric hybrid plasmonic structure[J]. Chinese Optics, 2023, 16(5): 1215-1225. doi: 10.37188/CO.EN.2022-0028
Citation: WANG Fang, LIU Hua, MA Tao, MA Shou-dao, LIU Yu-fang. Double-slot ultra-compact polarization beam splitter based on asymmetric hybrid plasmonic structure[J]. Chinese Optics, 2023, 16(5): 1215-1225. doi: 10.37188/CO.EN.2022-0028

Double-slot ultra-compact polarization beam splitter based on asymmetric hybrid plasmonic structure

doi: 10.37188/CO.EN.2022-0028
Funds:  Supported by National Natural Science Foundation of China (NSFC) (No. 62075057)
More Information
  • Author Bio:

    WANG Fang (1972—), female, born in Xinxiang, Henan Province, Ph.D, professor, doctoral supervisor, graduated from Henan Normal University in 2013 and is mainly engaged in the research of optical fiber sensing and new microelectronic device design. E-mail: 021034@htu.edu.cn

    LIU Hua (1995—), female, born in Anyang, Henan Province, master’s student, and is mainly engaged in the design of photoelectric integrated devices. E-mail: lh18237269109@163.com

  • Corresponding author: lh18237269109@163.com
  • Received Date: 13 Dec 2022
  • Rev Recd Date: 30 Jan 2023
  • Accepted Date: 16 Feb 2023
  • Available Online: 22 Feb 2023
  • To improve the extinction ratio of a polarization beam splitter, we propose a dual-slot ultra-compact polarization splitter (PBS) consisting of a hybrid plasma Horizontal Slot Waveguide (HSW) and a silicon nitride hybrid Vertical Slot Waveguide (VSW). The coating material is silicon dioxide, which can prevent the oxidation of the mixed plasma and also facilitate integration with other devices. The mode characteristics of the HSW and VSW are simulated by using the Finite Element Method (FEM). At suitable HSW and VSW widths, the TE polarization modes in HSW and VSW are phase-matched, while the TM polarization modes are phase mismatched. Therefore, the TE mode in an HSW waveguide is strongly coupled with a VSW waveguide by adopting a dual-slot, while the TM mode directly passes through the HSW waveguide. The results show that PBS achieves an Extinction Ratio (ER) of 35.1 dB and an Insertion Loss (IL) of 0.34 dB for the TE mode at 1.55 μm. For the TM mode, PBS reached 40.9 dB for ER and 2.65 dB for IL. The proposed PBS is designed with 100 nm bandwidth, high ER, and low IL, which can be suitable for photonic integrated circuits (PICs).


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  • [1]
    GAO L F, HU F F, WANG X J, et al. Ultracompact and silicon-on-insulator-compatible polarization splitter based on asymmetric plasmonic–dielectric coupling[J]. Applied Physics B, 2013, 113(2): 199-203. doi: 10.1007/s00340-013-5457-7
    ZOU J, XIA X, CHEN G T, et al. Birefringence compensated silicon nanowire arrayed waveguide grating for CWDM optical interconnects[J]. Optics Letters, 2014, 39(7): 1834-1837. doi: 10.1364/OL.39.001834
    HOSSEINI A, RAHIMI S, XU X, et al. Ultracompact and fabrication-tolerant integrated polarization splitter[J]. Optics Letters, 2011, 36(20): 4047-4049. doi: 10.1364/OL.36.004047
    HUANG Y W, TU ZH, YI H X, et al. High extinction ratio polarization beam splitter with multimode interference coupler on SOI[J]. Optics Communications, 2013, 307: 46-49. doi: 10.1016/j.optcom.2013.05.055
    LIANG T K, TSANG H K. Integrated polarization beam splitter in high index contrast silicon-on-insulator waveguides[J]. IEEE Photonics Technology Letters, 2005, 17(2): 393-395. doi: 10.1109/LPT.2004.839462
    DAI D X, WANG ZH, BOWERS J E. Ultrashort broadband polarization beam splitter based on an asymmetrical directional coupler[J]. Optics Letters, 2011, 36(13): 2590-2592. doi: 10.1364/OL.36.002590
    FENG J J, AKIMOTO R, ZENG H P. Asymmetric silicon slot-waveguide-assisted polarizing beam splitter[J]. IEEE Photonics Technology Letters, 2016, 28(12): 1294-1297. doi: 10.1109/LPT.2016.2541672
    HSU C W, CHANG T K, CHEN J Y, et al. 8.13 μm in length and CMOS compatible polarization beam splitter based on an asymmetrical directional coupler[J]. Applied Optics, 2016, 55(12): 3313-3318. doi: 10.1364/AO.55.003313
    KIM D W, LEE M H, KIM Y, et al. Planar-type polarization beam splitter based on a bridged silicon waveguide coupler[J]. Optics Express, 2015, 23(2): 998-1004. doi: 10.1364/OE.23.000998
    KIM S, QI M H. Copper nanorod array assisted silicon waveguide polarization beam splitter[J]. Optics Express, 2014, 22(8): 9508-9516. doi: 10.1364/OE.22.009508
    LIN SH Y, HU J J, CROZIER K B. Ultracompact, broadband slot waveguide polarization splitter[J]. Applied Physics Letters, 2011, 98(15): 151101. doi: 10.1063/1.3579243
    NI B, XIAO J B. Ultracompact and broadband silicon-based polarization beam splitter using an asymmetrical directional coupler[J]. IEEE Journal of Quantum Electronics, 2017, 53(4): 1-8.
    WU H, TAN Y, DAI D X. Ultra-broadband high-performance polarizing beam splitter on silicon[J]. Optics Express, 2017, 25(6): 6069-6075. doi: 10.1364/OE.25.006069
    XU H N, SHI Y CH. On-chip silicon TE-pass polarizer based on asymmetrical directional couplers[J]. IEEE Photonics Technology Letters, 2017, 29(11): 861-864. doi: 10.1109/LPT.2017.2693223
    XU Y, XIAO J B. Compact and high extinction ratio polarization beam splitter using subwavelength grating couplers[J]. Optics Letters, 2016, 41(4): 773-776. doi: 10.1364/OL.41.000773
    KIM D W, LEE M H, KIM Y, et al. Ultra-compact transverse magnetic mode-pass filter based on one-dimensional photonic crystals with subwavelength structures[J]. Optics Express, 2016, 24(19): 21560-21565. doi: 10.1364/OE.24.021560
    ZHANG Y, HE Y, WU J Y, et al. High-extinction-ratio silicon polarization beam splitter with tolerance to waveguide width and coupling length variations[J]. Optics Express, 2016, 24(6): 6586-6593. doi: 10.1364/OE.24.006586
    GALAN J V, SANCHIS P, GARCIA J, et al. Study of asymmetric silicon cross-slot waveguides for polarization diversity schemes[J]. Applied Optics, 2009, 48(14): 2693-2696. doi: 10.1364/AO.48.002693
    KOMATSU M A, SAITOH K, KOSHIBA M. Design of highly-nonlinear horizontal slot waveguide with low and flat dispersion[J]. Optics Communications, 2013, 298-299: 180-184. doi: 10.1016/j.optcom.2013.01.047
    SANCHIS P, BLASCO J, MARTINEZ A, et al. Design of silicon-based slot waveguide configurations for optimum nonlinear performance[J]. Journal of Lightwave Technology, 2007, 25(5): 1298-1305. doi: 10.1109/JLT.2007.893909
    SUN CH W, RONG K X, GAN F Y, et al. An on-chip polarization splitter based on the radiation loss in the bending hybrid plasmonic waveguide structure[J]. Applied Physics Letters, 2017, 111(10): 101105. doi: 10.1063/1.4997234
    WANG J, LIANG D, TANG Y B, et al. Realization of an ultra-short silicon polarization beam splitter with an asymmetrical bent directional coupler[J]. Optics Letters, 2013, 38(1): 4-6. doi: 10.1364/OL.38.000004
    AO X Y, LIU L, WOSINSKI L, et al. Polarization beam splitter based on a two-dimensional photonic crystal of pillar type[J]. Applied Physics Letters, 2006, 89(17): 171115. doi: 10.1063/1.2360201
    DAI D X, BOWERS J E. Novel ultra-short and ultra-broadband polarization beam splitter based on a bent directional coupler[J]. Optics Express, 2011, 19(19): 18614-18620. doi: 10.1364/OE.19.018614
    HEAVENS O S. Handbook of optical constants of solids II[J]. Journal of Modern Optics, 2011, 39(1): 189.
    CHEE J, ZHU SH Y, LO G Q. CMOS compatible polarization splitter using hybrid plasmonic waveguide[J]. Optics Express, 2012, 20(23): 25345-25355. doi: 10.1364/OE.20.025345
    AHMED R, RIFAT A A, SABOURI A, et al. Multimode waveguide based directional coupler[J]. Optics Communications, 2016, 370: 183-191. doi: 10.1016/j.optcom.2016.03.015
    MA Y Q, FARRELL G, SEMENOVA Y, et al. Low loss, high extinction ration and ultra-compact plasmonic polarization beam splitter[J]. IEEE Photonics Technology Letters, 2014, 26(7): 660-663. doi: 10.1109/LPT.2014.2302354
    NIKUFARD M, KHOMAMI A R. Hybrid plasmonic polarization splitter using three-waveguide directional coupler in InGaAsP/InP[J]. Optical and Quantum Electronics, 2016, 48(5): 296. doi: 10.1007/s11082-016-0576-0
    NI B, XIAO J B. Plasmonic-assisted TE-pass polarizer for silicon-based slot waveguides[J]. IEEE Photonics Technology Letters, 2018, 30(5): 463-466. doi: 10.1109/LPT.2018.2798709
    XIE Y, CHEN ZH X, YAN J, et al. Combination of surface plasmon polaritons and subwavelength grating for polarization beam splitting[J]. Plasmonics, 2020, 15(1): 235-241. doi: 10.1007/s11468-019-01032-6
    XU ZH Y, LYU T, SUN X H. Compact silicon-based TM-pass/TE-divide polarization beam splitter using contra-directional grating couplers assisted by horizontal slot waveguide[J]. Optics Communications, 2019, 451: 17-22. doi: 10.1016/j.optcom.2019.05.054
    ZHANG L, ZHANG L, FU X, et al. Compact, broadband and low-loss polarization beam splitter on lithium-niobate-on-insulator using a silicon nanowire assisted waveguide[J]. IEEE Photonics Journal, 2020, 12(5): 6601906.
    NIU CH Q, LIU ZH, LI X L, et al. High extinction ratio polarization beam splitter realized by separately coupling[J]. IEEE Photonics Technology Letters, 2020, 32(18): 1183-1186. doi: 10.1109/LPT.2020.3016028
    WANG F, CHEN Y K, LI CH Q, et al. Ultracompact and broadband mid-infrared polarization beam splitter based on an asymmetric directional coupler consisting of GaAs–CaF2 hybrid plasmonic waveguide and GaAs nanowire[J]. Optics Communications, 2022, 502: 127418. doi: 10.1016/j.optcom.2021.127418
    FILIMONOVA N I, ILYUSHIN V A, VELICHKO A A. Molecular beam epitaxy of BaF2/CaF2 buffer layers on the Si(100) substrate for monolithic photoreceivers[J]. Optoelectronics,Instrumentation and Data Processing, 2017, 53(3): 303-308. doi: 10.3103/S8756699017030153
    BARKAI M, LEREAH Y, GRÜNBAUM E, et al. Epitaxial growth of silicon and germanium films on CaF2/Si[J]. Thin Solid Films, 1986, 139(3): 287-297. doi: 10.1016/0040-6090(86)90058-1
    CHENG ZH, WANG J, HUANG Y Q, et al. Realization of a compact broadband polarization beam splitter using the three-waveguide coupler[J]. IEEE Photonics Technology Letters, 2019, 31(22): 1807-1810. doi: 10.1109/LPT.2019.2948076
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