Tunable narrow-band single-channel add-drop integrated optical filter with ultrawide FSR

Chunlei Sun^{1, 2},
Yuexin Yin^{1, 3},
Zequn Chen^{1, 2},
Yuting Ye^{1, 2},
Ye Luo^{1, 2},
Hui Ma^{4, 5},
Lichun Wang^{4, 5},
Maoliang Wei^{4, 5},
Jialing Jian^{1, 2},
Renjie Tang^{1, 2},
Hao Dai^{4, 5},
Jianghong Wu^{1, 2},
Junying Li^{4, 5},
Daming Zhang³,
Hongtao Lin^{4, 5},
Lan Li^{1, 2}

1.
Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, Hangzhou, 310024, China
2.
Institute of Advanced Technology, Westlake Institute for Advanced Study, Hangzhou, 310024, China
3.
State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, China
4.
Key Laboratory of Micro-Nano Electronics and Smart System of Zhejiang Province, College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou, 310027, China
5.
School of Microelectronics, Zhejiang University, Hangzhou, 310027, China

Funds: We thank Westlake Center for Micro/Nano Fabrication and Instrumentation, Service Center for Physical Sciences and Molecular Sciences at Westlake University, and ZJU Micro-Nano Fabrication Center at Zhejiang University for the facility support.

摘要

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Abstract: Free-spectral-range (FSR)-free optical filters have always been a critical challenge for photonic integrated circuits. A high-performance FSR-free filter is highly desired for communication, spectroscopy, and sensing applications. Despite significant progress in integrated optical filters, the FSR-free filter with a tunable narrow-band, high out-of-band rejection, and large fabrication tolerance has rarely been demonstrated. In this paper, we propose an exact and robust design method for add-drop filters (ADFs) with an FSR-free operation capability, a sub-nanometer optical bandwidth, and a high out-of-band rejection (OBR) ratio. The achieved filter has a 3-dB bandwidth of < 0.5 nm and an OBR ratio of 21.5 dB within a large waveband of 220 nm, which to the best of our knowledge, is the largest-FSR ADF demonstrated on a silicon photonic platform. The filter exhibits large tunability of 12.3 nm with a heating efficiency of 97 pm/mW and maintains the FSR-free feature in the whole tuning process. In addition, we fabricated a series of ADFs with different periods, which all showed reliable and excellent performances.
- Integrated devices /
- Silicon photonics /
- Optical filters /
- FSR-free filters /
- Tunable filters

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参考文献(36)

[1]	Corcoran B, Tan M, Xu X, Boes A, Wu J, Nguyen TG, et al. Ultra-dense optical data transmission over standard fibre with a single chip source. Nat Commun. 2020;11:2568.
[2]	Dai D, Bowers JE. Silicon-based on-chip multiplexing technologies and devices for Peta-bit optical interconnects. Nanophotonics. 2014;3:283–311.
[3]	Morichetti F, Milanizadeh M, Petrini M, Zanetto F, Ferrari G, De Aguiar DO, et al. Polarization-transparent silicon photonic add-drop multiplexer with wideband hitless tuneability. Nat Commun. 2021;12:4324.
[4]	Baier M, Grote N, Moehrle M, Sigmund A, Soares FM, Theurer M, et al. Integrated transmitter devices on InP exploiting electro-absorption modulation. PhotoniX. 2020;1:4.
[5]	Feldmann J, Youngblood N, Karpov M, Gehring H, Li X, Stappers M, et al. Parallel convolutional processing using an integrated photonic tensor core. Nature. 2021;589:52–8.
[6]	Feldmann J, Youngblood N, Wright CD, Bhaskaran H, Pernice WHP. All-optical spiking neurosynaptic networks with self-learning capabilities. Nature. 2019;569:208–14.
[7]	Li C, Zhang X, Li J, Fang T, Dong X. The challenges of modern computing and new opportunities for optics. PhotoniX. 2021;2:20.
[8]	Goi E, Zhang Q, Chen X, Luan H, Gu M. Perspective on photonic memristive neuromorphic computing. PhotoniX. 2020;1:3.
[9]	Liu T, Fiore A. Designing open channels in random scattering media for on-chip spectrometers. Optica. 2020;7:934–9.
[10]	Zhang Z, Wang Y, Tsang HK. Tandem Configuration of Microrings and Arrayed Waveguide Gratings for a High-Resolution and Broadband Stationary Optical Spectrometer at 860 nm. ACS Photon. 2021;8:1251–7.
[11]	Xia Z, Eftekhar AA, Soltani M, Momeni B, Li Q, Chamanzar M, et al. High resolution on-chip spectroscopy based on miniaturized microdonut resonators. Opt Express. 2011;19:12356–64.
[12]	Zheng S, Cai H, Song J, Zou J, Liu PY, Lin Z, et al. A Single-Chip Integrated Spectrometer via Tunable Microring Resonator Array. IEEE Photonics J. 2019;11:1–9.
[13]	Wan Y, Zhang S, Norman JC, Kennedy MJ, He W, Liu S, et al. Tunable quantum dot lasers grown directly on silicon. Optica. 2019;6:1394–400.
[14]	Wang R, Sprengel S, Vasiliev A, Boehm G, Van Campenhout J, Lepage G, et al. Widely tunable 2.3 μm III-V-on-silicon Vernier lasers for broadband spectroscopic sensing. Photonics Res. 2018;6:858–66.
[15]	Wan Y, Zhang S, Norman JC, Kennedy MJ, He W, Tong Y et al. Directly Modulated Single-Mode Tunable Quantum Dot Lasers at 1.3 μm. Laser Photonics Rev 2020;14:1900348.
[16]	Liu D, Zhang L, Jiang H, Dai D. First demonstration of an on-chip quadplexer for passive optical network systems. Photonics Res. 2021;9:757–63.
[17]	Yun H, Hammood M, Lin S, Chrostowski L, Na FJ. Broadband flat-top SOI add-drop filters using apodized sub-wavelength grating contradirectional couplers. Opt Lett. 2019;44:4929–32.
[18]	Sun H, Chen LR. Polarization-dependent tuning of Bragg reflection enabled through tilted subwavelength grating waveguide Bragg gratings. Opt Lett. 2021;46:1450–3.
[19]	Cheben P, Ctyroky J, Schmid JH, Wang S, Lapointe J, Wanguemert-Perez JG, et al. Bragg filter bandwidth engineering in subwavelength grating metamaterial waveguides. Opt Lett. 2019;44:1043–6.
[20]	Ren Y, Perron D, Aurangozeb F, Jiang Z, Hossain M, Van V. Silicon Photonic Vernier Cascaded Microring Filter for Broadband Tunability. IEEE Photon Technol Lett. 2019;31:1503–6.
[21]	Boeck R, Jaeger NA, Rouger N, Chrostowski L. Series-coupled silicon racetrack resonators and the Vernier effect: theory and measurement. Opt Express. 2010;18:25151–7.
[22]	Boeck R, Flueckiger J, Yun H, Chrostowski L, Jaeger NA. High performance Vernier racetrack resonators. Opt Lett. 2012;37:5199–201.
[23]	Sun C, Zhong C, Wei M, Ma H, Luo Y, Chen Z, et al. Free-spectral-range-free filters with ultrawide tunability across the S + C + L band. Photonics Res. 2021;9:1013–8.
[24]	Cheng Z, Dong J, Zhang X. Ultracompact optical switch using a single semisymmetric Fano nanobeam cavity. Opt Lett. 2020;45:2363–6.
[25]	Huang Q, Liu Q, Xia J. Traveling wave-like Fabry-Perot resonator-based add-drop filters. Opt Lett. 2017;42:5158–61.
[26]	Soref R, De Leonardis F, Passaro VMN. Compact resonant 2 x 2 crossbar switch using three coupled waveguides with a central nanobeam. Opt Express. 2021;29:8751–62.
[27]	Yu P, Qiu H, Dai T, Cheng R, Lian B, Li W, et al. Ultracompact Channel Add-Drop Filter Based on Single Multimode Nanobeam Photonic Crystal Cavity. J Lightwave Technol. 2021;39:162–6.
[28]	Poulton CV, Zeng X, Wade MT, Popovic MA. Channel add-drop filter based on dual photonic crystal cavities in push-pull mode. Opt Lett. 2015;40:4206–9.
[29]	Alonso-Ramos C, Annoni A, Ortega-Moñux A, Molina-Fernández I, Strain M, Orlandi P, et al. Narrow-band single-channel filter in silicon photonics. San Dieg: Advanced Photonics for Communications Optical Society of America; 2014.
[30]	Manolatou C, Khan MJ, Fan S, Villeneuve PR, Haus HA, Joannopoulos JD. Coupling of modes analysis of resonant channel add-drop filters. IEEE J Quantum Electron. 1999;35:1322–31.
[31]	Yariv A. Coupled-mode theory for guided-wave optics. IEEE J Quantum Electron. 1973;9:919–33.
[32]	Koks C, Van Exter MP. Microcavity resonance condition, quality factor, and mode volume are determined by different penetration depths. Opt Express. 2021;29:6879–89.
[33]	Zheng SN, Zou J, Cai H, Song JF, Chin LK, Liu PY, et al. Microring resonator-assisted Fourier transform spectrometer with enhanced resolution and large bandwidth in single chip solution. Nat Commun. 2019;10:2349.
[34]	Ma Y, Zhao Y, Shi Y, Hao L, Sun Z, Hong Z, et al. Silicon Add-Drop Multiplexer Based on π Phase-Shifted Antisymmetric Bragg Grating. IEEE J Quantum Electron. 2021;57:1–8.
[35]	Xing J, Li Z, Yu Y, Yu J. Design of polarization-independent adiabatic splitters fabricated on silicon-on-insulator substrates. Opt Express. 2013;21:26729–34.
[36]	Yun H, Shi W, Wang Y, Chrostowski L, NaF J. 2×2 adiabatic 3-dB coupler on silicon-on-insulator rib waveguides. Photonics North. The International Society for. Opt Eng. 2013.