[1] et alPhotonics in a time of rapid growth: silicon based optoelectronics in China. IEEE Photonics J., 16, 0600109(2023). https://doi.org/10.1109/JPHOT.2023.3324756

[2] . Silicon Based Optoelectronics(2021).

[3] et alSilicon based optoelectronics and its frontier advances (invited). Acta Opt. Sin., 1, 0602002(2024). https://doi.org/10.3788/AOSOL240458

[4] Silicon-based optoelectronics for general-purpose matrix computation: a review. Adv. Photonics, 4, 044001(2022). https://doi.org/10.1117/1.AP.4.4.044001

[5] et alRoadmapping the next generation of silicon photonics. Nat. Commun., 15, 751(2024). https://doi.org/10.1038/s41467-024-44750-0

[6] et alRecent progress of integrated circuits and optoelectronic chips. Sci. China Inf. Sci., 64, 201401(2021). https://doi.org/10.1007/s11432-021-3235-7

[7] et alA low-fabrication-temperature, high-gain chip-scale waveguide amplifier. Sci. China Inf. Sci., 65, 162405(2022). https://doi.org/10.1007/s11432-021-3360-0

[8] et alAdvances in lithium niobate thin-film lasers and amplifiers: a review. Adv. Photonics, 5, 034002(2023). https://doi.org/10.1117/1.AP.5.3.034002

[9] Erbium-doped integrated waveguide amplifiers and lasers. Laser Photonics Rev., 5, 368-403(2011). https://doi.org/10.1002/lpor.201000015

[10] et alOn-chip waveguide amplifiers for multi-band optical communications: a review and challenge. J. Lightwave Technol., 40, 3364-3373(2022). https://doi.org/10.1109/JLT.2022.3153447

[11] et alRare-earth ion doped Al2O3 for active integrated photonics. Adv. Phys. X, 6, 1833753(2021). https://doi.org/10.1080/23746149.2020.1833753

[12] et alA fully hybrid integrated erbium-based laser. Nat. Photonics, 18, 829-835(2024). https://doi.org/10.1038/s41566-024-01454-7

[13] et alEfficient integrated amplifier-assisted laser on erbium-doped lithium niobate. ACS Photonics, 11, 2114-2122(2024). https://doi.org/10.1021/acsphotonics.4c00391

[14] et alErbium-doped waveguide laser in tantalum pentoxide. IEEE Photonics Technol. Lett., 22, 1571-1573(2010). https://doi.org/10.1109/LPT.2010.2072495

[15] et alHigh-efficiency single-mode erbium-doped lithium niobate microring laser with milliwatt output power. Opt. Lett., 49, 6996-6999(2024). https://doi.org/10.1364/OL.544271

[16] Erbium-doped waveguide DBR and DFB laser arrays integrated within an ultra-low-loss Si3N4 platform. Opt. Express, 22, 10655-10660(2014). https://doi.org/10.1364/OE.22.010655

[17] et alOn-chip hybrid erbium-doped tellurium oxide–silicon nitride distributed Bragg reflector lasers. Appl. Phys. B, 129, 158(2023). https://doi.org/10.1007/s00340-023-08099-4

[18] et alA photonic integrated circuit–based erbium-doped amplifier. Science, 376, 1309-1313(2022). https://doi.org/10.1126/science.abo2631

[19] et alUltra-high on-chip optical gain in erbium-based hybrid slot waveguides. Nat. Commun., 10, 432(2019). https://doi.org/10.1038/s41467-019-08369-w

[20] et alMonolithic integration of erbium-doped amplifiers with silicon-on-insulator waveguides. Opt. Express, 18, 27703-27711(2010). https://doi.org/10.1364/OE.18.027703

[21] et alHigh-gain waveguide amplifiers in Si3N4 technology via double-layer monolithic integration. Photonics Res., 8, 1634-1641(2020). https://doi.org/10.1364/PRJ.401055

[22] et alAn erbium-doped waveguide amplifier on thin film lithium niobate with an output power exceeding 100 mW. Laser Photonics Rev., 19, 2400765(2024). https://doi.org/10.1002/lpor.202400765

[23] et alOn-chip integrated waveguide amplifiers on erbium-doped thin-film lithium niobate on insulator. Laser Photonics Rev., 15, 2100030(2021). https://doi.org/10.1002/lpor.202100030

[24] et alHighly efficient on-chip erbium–ytterbium co-doped lithium niobate waveguide amplifiers. Photonics Res., 11, 1733-1737(2023). https://doi.org/10.1364/PRJ.497947

[25] et alErbium-ytterbium codoped thin-film lithium niobate integrated waveguide amplifier with a 27 dB internal net gain. Opt. Lett., 48, 4344-4347(2023). https://doi.org/10.1364/OL.497543

[26] et alFull C-band tunable integrated erbium lasers via wafer-scale fabrication, AM3J–2(2024).

[27] et alHybrid integrated multi-lane erbium-doped Si3N4 waveguide amplifiers, M4A–5(2024).

[28] et alTerabit-class coherent communications enabled by an integrated photonics erbium doped amplifier(2024).

[29] et alFirst demonstration of erbium-doped waveguide amplifier enabled multi-Tb/s (1.6 × 1.6 T) coherent transmission, 1-3(2023).

[30] et alHybrid integrated thin-film lithium niobate and a silicon carbide microcomb amplifier. Opt. Lett., 50, 145-148(2024). https://doi.org/10.1364/OL.549175

[31] et alGain dynamics in integrated waveguide amplifier based on erbium-doped thin-film lithium niobate. ACS Photonics, 11, 4923-4932(2024). https://doi.org/10.1021/acsphotonics.4c01433

[32] et alErbium-doped lithium niobate on insulator waveguide amplifier with ultra-high internal net gain of 38 dB, 1-2(2024).

[33] et alIntegrated erbium-doped waveguide amplifier on lithium niobate on insulator. Opt. Mater. Express, 14, 1985-1994(2024). https://doi.org/10.1364/OME.532439

[34] et alOn-chip coherent beam combination of waveguide amplifiers on Er3+-doped thin film lithium niobate. Opt. Lett., 48, 6348-6351(2023). https://doi.org/10.1364/OL.504540

[35] et alMonolithically integrated active passive waveguide array fabricated on thin film lithium niobate using a single continuous photolithography process. Laser Photonics Rev., 17, 2200686(2023). https://doi.org/10.1002/lpor.202200686

[36] et alIntegrated spiral waveguide amplifiers on erbium-doped thin-film lithium niobate(2021).

[37] et alErbium-doped lithium niobate thin film waveguide amplifier with 16 dB internal net gain. IEEE J. Sel. Top. Quantum Electron., 28, 8200608(2022). https://doi.org/10.1109/JSTQE.2021.3137192

[38] et alHigh-gain erbium-doped waveguide amplifier on LNOI platform, T2E-2(2021).

[39] et alOn-chip erbium-doped lithium niobate waveguide amplifiers. Chin. Opt. Lett., 19, 060008(2021). https://doi.org/10.3788/COL202119.060008

[40] et alEfficient erbium-doped thin-film lithium niobate waveguide amplifiers. Opt. Lett., 46, 1161-1164(2021). https://doi.org/10.1364/OL.420250

[41] et alOn-chip erbium-doped lithium niobate microcavity laser. Sci. China Phys. Mech. Astron., 64, 234262(2021). https://doi.org/10.1007/s11433-020-1625-9

[42] et alErbium-doped waveguide amplifier on lithium niobate on insulator with 27.94 dB total gain and 6.20 dB/cm net gain, T5A-10(2021).

[43] et alErbium-doped LNOI as a gain platform for integrated optics, JW1A–113(2021).

[44] et alEr3+-doped lithium niobate thin film: a material platform for ultracompact, highly efficient active microphotonic devices. Adv. Photonics Res., 2, 2100081(2021). https://doi.org/10.1002/adpr.202100081

[45] et alA short high-gain waveguide amplifier based on low concentration erbium-doped thin-film lithium niobate on insulator. Appl. Phys. Lett., 122, 123503(2023). https://doi.org/10.1063/5.0137678

[46] et alA high-gain cladded waveguide amplifier on erbium doped thin-film lithium niobate fabricated using photolithography assisted chemo-mechanical etching. Nanophotonics, 11, 1033-1040(2022). https://doi.org/10.1515/nanoph-2021-0737

[47] Controlled ALD doping of Er3+ for active on-chip waveguide amplifiers based on Al2O3. Proc. SPIE, 11689, 116890S(2021). https://doi.org/10.1117/12.2586874

[48] et alErbium-doped spiral amplifiers with 20 dB of net gain on silicon. Opt. Express, 22, 25993-26004(2014). https://doi.org/10.1364/OE.22.025993

[49] et alErbium-ytterbium co-doped aluminium oxide waveguide amplifiers fabricated by reactive co-sputtering and wet chemical etching. Opt. Express, 28, 30130-30140(2020). https://doi.org/10.1364/OE.402802

[50] et alHigh-gain waveguide amplifiers in Ge25Sb10S65 photonics heterogeneous integration with erbium-doped Al2O3 thin films. Laser Photonics Rev., 18, 2300893(2024). https://doi.org/10.1002/lpor.202300893

[51] et al480 Gbps WDM transmission through an Al2O3:Er3+ waveguide amplifier. J. Lightwave Technol., 40, 735-743(2021). https://doi.org/10.1109/JLT.2021.3121467

[52] et alGain bandwidth of 80 nm and 2 dB/cm peak gain in Al2O3:Er3+ optical amplifiers on silicon. J. Opt. Soc. Am. B, 27, 187-196(2010). https://doi.org/10.1364/JOSAB.27.000187

[53] et alErbium doped Al2O3 films for integrated III–V photonics, 1-4(2013).

[54] et alErbium-ytterbium co-doped aluminum oxide thin films: co-sputtering deposition, photoluminescence, luminescent lifetime, energy transfer and quenching fraction. Opt. Mater., 111, 110692(2021). https://doi.org/10.1016/j.optmat.2020.110692

[55] Global net-gain characterization of monolithically integrated waveguide amplifiers, JW3B–15(2022).

[56] High-gain Er3+:Al2O3 on-chip waveguide amplifiers. IEEE J. Sel. Top. Quantum Electron., 26, 3200208(2020). https://doi.org/10.1109/JSTQE.2020.3002656

[57] et alMonolithic integration of Al2O3 and Si3N4 toward double-layer active–passive platform. IEEE J. Sel. Top. Quantum Electron., 25, 8200911(2019). https://doi.org/10.1109/JSTQE.2019.2908559

[58] et alHigh on-chip gain spiral Al2O3:Er3+ waveguide amplifiers. Opt. Express, 32, 15527-15536(2024). https://doi.org/10.1364/OE.516705

[59] et alMonolithically-integrated distributed feedback laser compatible with CMOS processing. Opt. Express, 25, 18058-18065(2017). https://doi.org/10.1364/OE.25.018058

[60] et alAtomic-layer engineered erbium-doped waveguide amplifier with a 14.4 dB net gain. ACS Photonics, 12, 674-683(2025). https://doi.org/10.1021/acsphotonics.4c01466

[61] et alAn on-chip atomic layer deposited waveguide amplifier with broadband net gain. Proc. SPIE, 12504, 125040B(2022). https://doi.org/10.1117/12.2657026

[62] et alAn on-chip atomic layer deposited waveguide amplifier with net gain at C-band. Proc. SPIE, 12764, 127640I(2023). https://doi.org/10.1117/12.2687603

[63] et alAtomic layer engineering of Er-ion distribution in highly doped Er:Al2O3 for photoluminescence enhancement. ACS Photonics, 3, 2040-2048(2016). https://doi.org/10.1021/acsphotonics.6b00283

[64] et alWafer-scale atomic-layer-deposition of Er3+- and Yb3+-doped gain materials for integrated photonics, 1-2(2023).

[65] et alCMOS-compatible 75 mW erbium-doped distributed feedback laser. Opt. Lett., 39, 3106-3109(2014). https://doi.org/10.1364/OL.39.003106

[66] et alOn-chip Er-doped Ta2O5 waveguide amplifiers with a high internal net gain. Opt. Lett., 48, 5799-5802(2023). https://doi.org/10.1364/OL.499779

[67] et alElectroluminescence from silicon-based light-emitting devices with erbium-doped Ta2O5 films. Phys. Status Solidi – Rapid Res. Lett., 18, 2400045(2024). https://doi.org/10.1002/pssr.202400045

[68] et alSpectroscopy, modeling, and performance of erbium-doped Ta2O5 waveguide amplifiers. J. Lightwave Technol., 30, 1455-1462(2012). https://doi.org/10.1109/JLT.2012.2185925

[69] et alSpectroscopy of thulium-doped tantalum pentoxide waveguides on silicon. Opt. Mater. Express, 10, 2201-2211(2020). https://doi.org/10.1364/OME.397011

[70] et alYtterbium-doped tantalum pentoxide waveguides: spectroscopy for compact waveguide lasers, AM4A–38(2013).

[71] et alSpectroscopy of ytterbium-doped tantalum pentoxide rib waveguides on silicon. Opt. Mater. Express, 4, 1505-1514(2014). https://doi.org/10.1364/OME.4.001505

[72] et alFabrication of erbium and ytterbium co-doped tantalum-oxide thin films using radio-frequency co-sputtering. Mater. Sci. Appl., 6, 343-347(2015). https://doi.org/10.4236/msa.2015.65039

[73] et alErbium-ytterbium co-doped tantalum pentoxide as a gain material for silicon-based optoelectronics, P3_060(2024).

[74] et alSilicon-based tantalum pentoxide ridge waveguide with high erbium concentration. Infrared Laser Eng., 46, 821002(2017). https://doi.org/10.3788/IRLA201746.0821002

[75] et alErbium-doped TeO2-coated Si3N4 waveguide amplifiers with 5 dB net gain. Photonics Res., 8, 127-134(2020). https://doi.org/10.1364/PRJ.8.000127

[76] Very low loss reactively ion etched tellurium dioxide planar rib waveguides for linear and non-linear optics. Opt. Express, 17, 17645-17651(2009). https://doi.org/10.1364/OE.17.017645

[77] et alErbium-doped tellurium-oxide-coated silicon nitride waveguide amplifiers, SW3F–2(2020).

[78] et alLow-loss TeO2-coated Si3N4 waveguides for application in photonic integrated circuits. Opt. Express, 27, 12529-12540(2019). https://doi.org/10.1364/OE.27.012529

[79] Tellurium dioxide erbium doped planar rib waveguide amplifiers with net gain and 2.8 dB/cm internal gain. Opt. Express, 18, 19192-19200(2010). https://doi.org/10.1364/OE.18.019192

[80] et al980 nm pumped erbium doped tellurium oxide planar rib waveguide laser and amplifier with gain in S, C and L band. Opt. Express, 23, 747-755(2015). https://doi.org/10.1364/OE.23.000747

[81] et alOptical gain at 1.55  μm of Er(TMHD)3 complex doped polymer waveguides based on the intramolecular energy transfer effect. Opt. Express, 31, 5242-5256(2023). https://doi.org/10.1364/OE.479180

[82] et alOptical gain based on NaYF4: Er3+, Yb3+ nanoparticles-doped polymer waveguide under convenient LED pumping. Appl. Phys. Lett., 118, 173301(2021). https://doi.org/10.1063/5.0047509

[83] et alDemonstration of optical gain at 1550 nm in an Er3+-Yb3+ co-doped phosphate planar waveguide under commercial and convenient LED pumping. Opt. Express, 29, 11372-11385(2021). https://doi.org/10.1364/OE.414847

[84] et alOptical amplification at 1.5  μm in ErIII coordination polymer-doped waveguides based on intramolecular energy transfer. Adv. Sci., 11, 2401131(2024). https://doi.org/10.1002/advs.202401131

[85] et alHigh-gain of NdIII complex doped optical waveguide amplifiers at 1.06 and 1.31  μm wavelengths based on intramolecular energy transfer mechanism. Adv. Mater., 35, 2209239(2023). https://doi.org/10.1002/adma.202209239

[86] et alOptical amplification at 637 and 1067 nm based on organic molecule AQ(PhDPA)₂ and Nd^III complex codoped polymer waveguides. Small Methods, 7, 2201366(2023). https://doi.org/10.1002/smtd.202201366

[87] et alMonolithic integration of waveguide amplifiers and passive polymer photonic devices using photolithography. Opt. Express, 32, 38285-38291(2024). https://doi.org/10.1364/OE.533433

[88] et alStrip loaded waveguide amplifiers based on erbium-doped nanocomposites with 17 dB internal net gain. Opt. Express, 32, 7931-7939(2024). https://doi.org/10.1364/OE.514318

[89] et alGain enhancement technique for S-band polymer-based waveguide amplifiers. Opt. Express, 31, 14140-14148(2023). https://doi.org/10.1364/OE.488465

[90] et alGain enhancement of polymer waveguide amplifier based on NaYF4:Er3+, Yb3+ nanocrystals using backward pump scheme. Opt. Commun., 488, 126723(2021). https://doi.org/10.1016/j.optcom.2020.126723

[91] et alGreat enhancement of relative gain in polymer waveguide amplifier using NaYF4/NaLuF4:Yb, Er-PMMA nanocomposite as gain media. Polymer, 188, 122104(2020). https://doi.org/10.1016/j.polymer.2019.122104

[92] et alDemonstration of optical gain at 1535 nm based on ErIII complex-doped polymer waveguides under light-emitting diode excitation. Adv. Opt. Mater., 12, 2400496(2024). https://doi.org/10.1002/adom.202400496

[93] Ultra-low loss SiN waveguide platform for integrated passive and active components for next generation photonic integrated circuits, 1-2(2016).

[94] et alWatt-class silicon photonics-based optical high-power amplifier. Nat. Photonics, 19, 307-314(2025). https://doi.org/10.1038/s41566-024-01587-9

[95] et alWatt-class CMOS-compatible power amplifier, 1(2023).

[96] et alSub-2W tunable laser based on silicon photonics power amplifier. Light Sci. Appl., 14, 18(2025). https://doi.org/10.1038/s41377-024-01681-1

[97] et alPlanar waveguide integrated EDFA, PDP17(2008).

[98] et alVersatile waveguide design for optical amplification, WDD27(2001).

[99] et alEight-wavelength Er-Yb doped amplifier: combiner/splitter planar integrated module. IEEE Photonics Technol. Lett., 11, 1105-1107(1999). https://doi.org/10.1109/68.784202

[100] et alAn eight-wavelength 160-km transparent metro WDM ring network featuring cascaded erbium-doped waveguide amplifiers. IEEE Photonics Technol. Lett., 13, 1130-1132(2001). https://doi.org/10.1109/68.950758

[101] et alNet gain of 27 dB with a 8.6-cm-long Er/Yb-doped glass-planar-amplifier, 45-46(1998).

[102] et alFirst experimental evidence of a novel multimode pumping scheme for an array of rare-earth doped waveguide amplifiers and lasers, 1-3(2010).

[103] et alHighly integrated, lossless bus interface modules for avionic fiber optic communications networks, 60-61(2006).

[104] Waveguide amplifier design and integration, OTuD1(2006).

[105] et alEight wavelength amplifying combiner/splitter module based on erbium/ytterbium doped planar technology, FC5(1999).

[106] et alAmplifying four-wavelength combiner, based on erbium/ytterbium-doped waveguide amplifiers and integrated splitters. IEEE Photonics Technol. Lett., 9, 315-317(1997). https://doi.org/10.1109/68.556058

[107] et alCharacterization and packaging of erbium-doped alumina waveguide amplifier on a silicon nitride layer, 1-4(2024).

[108] et alErbium-doped Ga2O3 waveguide for optical amplification. Appl. Phys. Lett., 123, 151109(2023). https://doi.org/10.1063/5.0168092

[109] et alUltra-low-loss Ta2O5-core/SiO2-clad planar waveguides on Si substrates. Optica, 4, 532-536(2017). https://doi.org/10.1364/OPTICA.4.000532

[110] et alHybrid Si3N4-Er/Yb silicate waveguides for amplifier application. IEEE Photonics Technol. Lett., 24, 900-902(2012). https://doi.org/10.1109/LPT.2012.2190276

[111] et alOptical amplification in Er/Yb silicate strip loaded waveguide. Appl. Phys. Lett., 99, 161115(2011). https://doi.org/10.1063/1.3655330

[112] et alOptical amplification in Er/Yb silicate slot waveguide. Opt. Lett., 37, 1427-1429(2012). https://doi.org/10.1364/OL.37.001427

[113] et alGiant optical gain in a single-crystal erbium chloride silicate nanowire. Nat. Photonics, 11, 589-593(2017). https://doi.org/10.1038/nphoton.2017.115

[114] et alHigh-gain polymer optical waveguide amplifiers based on core-shell NaYF4/NaLuF4:Yb3+, Er3+ NPs-PMMA covalent-linking nanocomposites. Sci. Rep., 6, 36729(2016). https://doi.org/10.1038/srep36729

[115] et alFull C-and L-band tunable erbium-doped integrated lasers via scalable manufacturing(2025).

[116] Erbium-doped Si3N4 photonic integrated circuits and wafer-scale fabrication to include our recent progress, Th1D.1(2024).

[117] et alHigh-yield, wafer-scale fabrication of ultralow-loss, dispersion-engineered silicon nitride photonic circuits. Nat. Commun., 12, 2236(2021). https://doi.org/10.1038/s41467-021-21973-z

[118] et alIntegrated high quality factor lithium niobate microdisk resonators. Opt. Express, 22, 30924-30933(2014). https://doi.org/10.1364/OE.22.030924

[119] et alUltra-low loss lithium niobate photonics. Acta Opt. Sin., 41, 0823012(2021). https://doi.org/10.3788/AOS202141.0823012

[120] et alLithium niobate micro-disk resonators of quality factors above 10⁷. Opt. Lett., 43, 4116-4119(2018). https://doi.org/10.1364/OL.43.004116

[121] et alPhotonic-electronic integrated circuit-based coherent lidar engine. Nat. Commun., 15, 3134(2024). https://doi.org/10.1038/s41467-024-47478-z

[122] et alGain simulation of erbium-doped Al2O3 waveguide amplifiers for lidar applications(2021).

[123] et alLossless 1 × 4 silicon photonic ROADM based on a monolithic integrated erbium doped waveguide amplifier on a Si3N4 platform. J. Lightwave Technol., 40, 1718-1725(2022). https://doi.org/10.1109/JLT.2021.3131130

[124] et alDeep learning with coherent nanophotonic circuits. Nat. Photonics, 11, 441-446(2017). https://doi.org/10.1038/nphoton.2017.93

[125] Photonic chip brings optical quantum computers a step closer. Nature, 591, 40-41(2021). https://doi.org/10.1038/d41586-021-00488-z

[126] Silicon optical phased array with a 180-degree field of view for 2D optical beam steering. Optica, 9, 903-907(2022). https://doi.org/10.1364/OPTICA.458642

[127] et alAn EDWA-supported multi-terabit/s coherent optical transmission. Proc. SPIE, PC12894, PC128940C(2024). https://doi.org/10.1117/12.3009992

[128] Computing on silicon photonic platform. Chin. J. Lasers, 47, 0600001(2020). https://doi.org/10.3788/CJL202047.0600001

[129] et alMultidimensional quantum entanglement with large-scale integrated optics. Science, 360, 285-291(2018). https://doi.org/10.1126/science.aar7053

[130] et alLow loss nanostructured polymers for chip-scale waveguide amplifiers. Sci. Rep., 7, 3366(2017). https://doi.org/10.1038/s41598-017-03543-w