[1] Kenyon A J. Erbium in silicon. Semiconductor Science and Technology, 2005, 20(12): R65–R84

[2] Mears R J, Reekie L, Jauncey I M, Payne D N. Low-noise erbiumdoped fibre amplifier operating at 1.54 mm. Electronics Letters, 1987, 23(19): 1026–1028

[3] Park N, Dawson J W, Vahala K J, Miller C. All fiber, low threshold, widely tunable singl-frequency, erbium-doped fiber ring laser with a tandem fiber Fabry-Perot filter. Applied Physics Letters, 1991, 59 (19): 2369–2371

[4] Yan Y C, Faber A J, de Waal H, Kik P G, Polman A. Erbium–doped phosphate glass waveguide on silicon with 4.1 dB/cm gain at 1.535 mm. Applied Physics Letters, 1997, 71(20): 2922–2924

[5] Kik P G, Polman A. Erbium doped optical-waveguide amplifiers on silicon. MRS Bulletin, 1998, 23(4): 48–54

[6] Della Valle G, Taccheo S, Laporta P, Sorbello G, Cianci E, Foglietti V. Compact high gain erbium-ytterbium doped waveguide amplifier fabricated by Ag-Na ion exchange. Electronics Letters, 2006, 42 (11): 632–633

[7] Bernhardi E H, van Wolferen H A G M, Agazzi L, Khan M R H, Roeloffzen C G H, W rhoff K, Pollnau M, de Ridder R M. Ultranarrow- linewidth, single-frequency distributed feedback waveguide laser in Al2O3:Er3+ on silicon. Optics Letters, 2010, 35(14): 2394– 2396

[8] Bradley J D B, Pollnau M. Erbium-doped integrated waveguide amplifiers and lasers. Laser & Photonics Reviews, 2011, 5(3): 368– 403

[9] Saini S, Chen K, Duan X, Michel J, Kimerling L C, Lipson M. Er2O3 for high-gain waveguide amplifiers. Journal of Electronic Materials, 2004, 33(7): 809–814

[10] Miritello M, Savio R L, Piro A, Franzò G, Priolo F, Iacona F, Bongiorno C. Optical and structural properties of Er2O3 films grown by magnetron sputtering. Journal of Applied Physics, 2006, 100(1): 013502

[11] Zheng J, Ding W, Xue C, Zuo Y, Cheng B, Yu J, Wang Q, Wang G, Guo H. Highly efficient photoluminescence of Er2SiO5 films grown by reactive magnetron sputtering method. Journal of Luminescence, 2010, 130(3): 411–414

[12] Choi H J, Shin J H, Suh K, Seong H K, Han H C, Lee J C. Selforganized growth of Si/Silica/Er2Si2O7 core-shell nanowire heterostructures and their luminescence. Nano Letters, 2005, 5(12): 2432– 2437

[13] Wang B, Guo R, Wang L, Wang X, Zhou Z. 1.53 μm electroluminescence of erbium excited by hot carriers in ErRE (RE = Yb, Y) silicates. In: Proceedings of Group IV Photonics (GFP). 2012, 72–74

[14] Wang L, Guo R, Wang B, Wang X, Zhou Z. Hybrid Si3N4-Er/Yb/Y silicate waveguide amplifier with 1.25 dB/cm internal gain. In: Proceedings of Group IV Photonics (GFP). 2012, 249–251

[15] Pan A, Yin L, Liu Z, Sun M, Liu R B, Nichols P L,Wang Y, Ning C Z. Single-crystal erbium chloride silicate nanowires as a Sicompatible light emission material in communication wavelength. Optical Materials Express, 2011, 1(7): 1202–1209

[16] Yin L, Shelhammer D, Zhao G, Liu Z, Ning C Z. Erbium concentration control and optimization in erbium yttrium chloride silicate single crystal nanowires as a high gain material. Applied Physics Letters, 2013, 103(12): 121902

[17] Liu Z, Yin L, Ning C Z. Extremely large signal enhancement in an erbium chloride silicate single-crystal nanowire. In: Proceedings of Conference on Lasers and Electro-Optics. San Jose: IEEE, 2013

[18] Liu Z, Zhao G, Yin L, Ning C Z. Demonstration of net gain in an erbium chloride silicate single nanowire waveguide. In: Proceedings of Conference on Lasers and Electro-Optics. San Jose: IEEE, 2014

[19] Suh K, Lee M, Chang J S, Lee H, Park N, Sung G Y, Shin J H. Cooperative upconversion and optical gain in ion-beam sputterdeposited ErxY2 – xSiO5 waveguides. Optics Express, 2010, 18(8): 7724–7731

[20] Bradley J D B, Agazzi L, Geskus D, Ay F, W rhoff K, Pollnau M. Gain bandwidth of 80 nm and 2 dB/cm peak gain in Al2O3:Er3+ optical amplifiers on silicon. Journal of the Optical Society of America B, 2010, 27(2): 187–196

[21] Mears R, Reekie L, Poole S, Payne D. Low-threshold tunable CW and Q-switched fibre laser operating at 1.55 mm. Electronics Letters, 1986, 22(3): 159–160

[22] Deotare P B, McCutcheon M W, Frank I W, Khan M, Lon ar M. High quality factor photonic crystal nanobeam cavities. Applied Physics Letters, 2009, 94(12): 121106

[23] Liu H C, Yariv A. Designing coupled-resonator optical waveguides based on high-Q tapered grating-defect resonators. Optics Express, 2012, 20(8): 9249–9263

[24] Quan Q, Deotare P B, Loncar M. Photonic crystal nanobeam cavity strongly coupled to the feeding waveguide. Applied Physics Letters, 2010, 96(20): 203102

[25] Sauvan C, Lecamp G, Lalanne P, Hugonin J. Modal-reflectivity enhancement by geometry tuning in photonic crystal microcavities. Optics Express, 2005, 13(1): 245–255

[26] McCutcheon MW, Loncar M. .Design of an ultrahigh quality factor silicon nitride photonic crystal nanocavity for coupling to diamond nanocrystals. 2008, arXiv preprint arXiv:0809.5066

[27] Zain A R, Johnson N P, Sorel M, De La Rue RM. Ultra high quality factor one dimensional photonic crystal/photonic wire microcavities in silicon-on-insulator (SOI). Optics Express, 2008, 16 (16): 12084–12089

[28] Quan Q, Loncar M. Deterministic design of wavelength scale, ultrahigh Q photonic crystal nanobeam cavities. Optics Express, 2011, 19(19): 18529–18542