Investigation of mode characteristics in rectangular microresonators for wide and continuous wavelength tuning

Abstract

The mode characteristics are investigated for the rectangular microresonators with an output waveguide connected to the midpoint of the long side for wide and continuous wavelength tuning. Through adjusting the aspect ratio of the rectangular microresonator, the mode Q factors can be greatly enhanced. Furthermore, the large mode interval between the high-Q modes makes the rectangular microresonators suitable for tunable lasers. As a special case, single-mode operation is achieved with a continuous tuning range of 9.1 nm for a square microlaser with the side length of 17.8 mm and the output waveguide width of 1.8 mm.

Keywords

rectangular microresonator / semiconductor laser / tunable laser

References

[1] McCall S L, Levi A F J, Slusher R E, Pearton S J, Logan R A. Whispering-gallery mode microdisk lasers. Applied Physics Letters, 1992, 60(3): 289–291

[2] Baba T, Yogo Y, Suzuki K, Koyama F, Iga K. Near room temperature continuous wave lasing characteristics of GaInAsP/InP surface emitting laser. Electronics Letters, 1993, 29(10): 913–914

[3] Levi A F J, Slusher R E, Mccall S L, Glass J L, Pearton S J, Logan R A. Directional light coupling from microdisk lasers. Applied Physics Letters, 1993, 62(6): 561–563

[4] Zhang Z, Yang L, Liu V, Hong T, Vahala K, Scherer A. Visible submicron microdisk lasers. Applied Physics Letters, 2007, 90(11): 111119–111121

[5] Yang Y D, Wang S J, Huang Y Z. Investigation of mode coupling in a microdisk resonator for realizing directional emission. Optics Express, 2009, 17(25): 23010–23015

[6] Wang S J, Lin J D, Huang Y Z, Yang Y D, Che K J, Xiao J L, Du Y, Fan Z C. AlGaInAs-InP microcylinder lasers connected with an output waveguide. IEEE Photonics Technology Letters, 2010, 22(18): 1349–1351

[7] Poon A W, Courvoisier F, Chang R K. Multimode resonances in square-shaped optical microcavities. Optics Letters, 2001, 26(9): 632–634

[8] Boriskina S V, Benson T M, Sewell P, Nosich A I. Spectral shift and Q-change of circular and square-shaped optical microcavity modes due to periodic sidewall surface roughness. Journal of the Optical Society of America B: Optical Physics, 2005, 21(10): 1792–1796

[9] Guo W H, Huang Y Z, Lu Q Y, Yu L J. Whispering-gallery-like modes in square resonators. IEEE Journal of Quantum Electronics, 2003, 39(9): 1106–1110

[10] Che K J, Huang Y Z. Mode characteristics of metallically coated square microcavity connected with an output waveguide. Journal of Applied Physics, 2010, 107(11): 113103

[11] Long H, Huang Y Z, Yang Y D, Zou L X, Lv X M, Liu B W, Xiao J L, Du Y. Mode characteristics of unidirectional emission AlGaInAs/InP square resonator microlasers. IEEE Journal of Quantum Electronics, 2014, 50(12): 981–989

[12] Tang M Y, Sui S S, Yang Y D, Xiao J L, Du Y, Huang Y Z. Mode selection in square resonator microlasers for widely tunable single mode lasing. Optics Express, 2015, 23(21): 27739–27750

[13] Lin J D, Huang Y Z, Yang Y D, Yao Q F, Lv X M, Xiao J L, Du Y. Single transverse whispering-gallery mode AlGaInAs/InP hexagonal resonator microlasers. IEEE Photonics Journal, 2011, 3(4): 756–764

[14] Zou L X, Lv X M, Huang Y Z, Long H, Xiao J L, Yao Q F, Lin J D, Du Y. Mode analysis for unidirectional emission AlGaInAs/InP octagonal resonator microlasers. IEEE Journal of Selected Topics in Quantum Electronics, 2013, 19(4): 1501808

[15] Huang Y Z, Chen Q, Guo W H, Lu Q Y, Yu L J. Mode characteristics for equilateral triangle optical resonators. IEEE Journal of Selected Topics in Quantum Electronics, 2006, 12(1): 59–65

[16] Huang Y Z, Hu Y H, Chen Q, Wang S J, Du Y, Fan Z C. Room-temperature continuous-wave electrically injected InP-GaInAsP equilateral-triangle-resonator lasers. IEEE Photonics Technology Letters, 2007, 19(13): 963–965

[17] Ni C Y A, Chang S W, Gargas D J, Moore M C, Yang P D, Chuang S L. Metal-coated zinc oxide nanocavities. IEEE Journal of Quantum Electronics, 2011, 47(2): 245–251

[18] Zhang C, Zhang F, Sun X W, Yang Y, Wang J, Xu J. Frequency-upconverted whispering-gallery-mode lasing in ZnO hexagonal nanodisks. Optics Letters, 2009, 34(21): 3349–3351

[19] Yang Y D, Huang Y Z. Mode analysis and Q-factor enhancement due to mode coupling in rectangular resonators. IEEE Journal of Quantum Electronics, 2007, 43(6): 497–502

[20] Guo W H, Li W J, Huang Y Z. Computation of resonant frequencies and quality factors of cavities by FDTD technique and Pade approximation. IEEE Microwave and Wireless Components Letters, 2001, 11(5): 223–225

[21] Mccaulley J A, Donnelly V M, Vernon M, Taha I.Temperature dependence of the near-infrared refractive index of silicon, gallium arsenide, and indium phosphide. Physical Review B: Condensed Matter, 1994, 49(11): 7408–7417

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2016 Higher Education Press and Springer-Verlag Berlin Heidelberg