Search Results - "Kechang, Song"

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  1. 1

    Failure mode characterizations of semiconductor lasers by Ren, Zhanqiang, Li, Qingmin, Qiu, Bocang, Zhang, Jin, Li, Xirong, Xu, Bin, Song, Kechang, Li, Bo

    Published in AIP advances (01-09-2023)
    “…Catastrophic optical mirror damage (COMD) and catastrophic optical bulk damage (COBD) are the main factors that affect the reliability of semiconductor lasers…”
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    Journal Article
  2. 2

    Carrier Transport in InGaN MQWs of Aquamarine- and Green-Laser Diodes by Sizov, D. S., Bhat, R., Zakharian, A., Kechang Song, Allen, D. E., Coleman, S., Chung-en Zah

    “…We studied experimentally and theoretically the substrate-orientation impact on carrier transport and capture in InGaN multiple quantum well (MQW) laser diodes…”
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    Journal Article
  3. 3

    107-mW low-noise green-light emission by frequency doubling of a reliable 1060-nm DFB semiconductor laser diode by Hong Ky Nguyen, Hu, M.H., Nishiyama, N., Visovsky, N.J., Yabo Li, Kechang Song, Xingsheng Liu, Gollier, J., Hughes, L.C., Bhat, R., Chung-En Zah

    Published in IEEE photonics technology letters (01-03-2006)
    “…We have generated 107-mW green-light emission by frequency doubling of a reliable 1060-nm distributed feedback (DFB) laser diode using a periodically poled…”
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    Journal Article
  4. 4

    High-power high-Modulation-speed 1060-nm DBR lasers for Green-light emission by Hu, M.H., Hong Ky Nguyen, Kechang Song, Yabo Li, Visovsky, N.J., Xingsheng Liu, Nishiyama, N., Coleman, S., Hughes, L.C., Gollier, J., Miller, W., Bhat, R., Chung-En Zah

    Published in IEEE photonics technology letters (15-02-2006)
    “…We report on the static and dynamic performance of high-power and high-modulation-speed 1060-nm distributed Bragg reflector (DBR) lasers for green-light…”
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    Journal Article
  5. 5

    Optical gain and gain saturation of blue-green InGaN quantum wells by Sizov, Dmitry, Bhat, Rajaram, Napierala, Jerome, Gallinat, Chad, Song, Kechang, Allen, Donald, Zah, Chung-en

    “…Using varied stripe length method we systematically studied optical gain properties of blue‐green 3 nm InGaN QWs grown on c‐plane and (11−22) semipolar…”
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    Journal Article
  6. 6

    Testing of high-power semiconductor laser bars by Hu, M.H., Xingsheng Liu, Caneau, C., Yabo Li, Bhat, R., Kechang Song, Chung-En Zah

    Published in Journal of lightwave technology (01-02-2005)
    “…A measurement system called laser bar prober for characterizing high-power semiconductor edge-emitting laser bars is described. The laser bar prober is fully…”
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    Journal Article
  7. 7

    480-mW DBR Laser Integrated with Micro Heaters for Wavelength Tuning by Hu, M.H., Visovsky, N.J., Coleman, S., Yabo Li, Kechang Song, Nguyen, H.K., Chung-En Zah

    “…We fabricated 1060-nm DBR lasers with 480-mW output power and integrated micro heaters. A 20-nm discrete wavelength tuning using Bragg-section heater alone and…”
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    Conference Proceeding
  8. 8

    A metallization scheme for junction-down bonding of high-power semiconductor lasers by Xingsheng Liu, Kechang Song, Davis, R.W., Hughes, L.C., Hu, M.H., Chung-En Zah

    Published in IEEE transactions on advanced packaging (01-08-2006)
    “…High-power semiconductor lasers have found increasing applications in industrial, military, commercial, and consumer products. The thermal management of…”
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    Journal Article
  9. 9
  10. 10

    Reliability and qualification of high-power wavelength-tunable 1060-nm laser diode for ultra-compact laser projector application by Hong Ky Nguyen, Yabo Li, Kechang Song, Visovsky, N.J., Coleman, S., Chung-en Zah

    “…We report highly reliable 1060-nm DBR semiconductor lasers after aging the gain section and DBR-section heater for up to 24000 and 11000 hrs, respectively, at…”
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    Conference Proceeding
  11. 11

    Design and implementation of metallization structures for epi-down bonded high power semiconductor lasers by Xingsheng Liu, Kechang Song, Davis, R.W., Hu, M.H., Chung-En Zah

    “…High power semiconductor lasers have found increasing applications in industrial, military, commercial and consumer products. The thermal management of high…”
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    Conference Proceeding
  12. 12

    High power 880nm laser chip with a predicted MTTF of 200,000 hours by Ren, Zhanqiang, Li, Qingmin, Song, Kechang, Li, Xirong

    “…Large optical cavity and low internal losses less than 0.62cm -1 were both used in the 880nm laser structure design, and the epitaxy of this structure was…”
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    Conference Proceeding
  13. 13

    Polarization measurement method of semiconductor laser by Li, Qingmin, Song, Kechang, Zhang, Huanhuan, Ren, Zhanqiang, Sun, Cheng, Zhao, Yongchao

    “…In this paper, the polarization degree of semiconductor laser device in COS package form is measured according to the principle of collimation lens, the light…”
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    Conference Proceeding
  14. 14

    X-ray diffraction of strain relaxation in Si-Si1− x Ge x heterostructures by Baribeau, J.-M., Kechang, Song, Munro, K.

    Published in Applied physics letters (23-01-1989)
    “…We report a double-crystal x-ray diffraction study of the relaxation of molecular beam epitaxy grown Si-Si1−xGex strained single layers and superlattices on…”
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    Journal Article
  15. 15

    High power 1060 nm DBR lasers with quantum well intermixed passive sections

    “…We report a single-wavelength 1060 nm distributed Bragg reflector laser with a record high single lateral mode optical power of 400 mW. These lasers are…”
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    Conference Proceeding
  16. 16

    Boron redistribution in doping superlattices grown by silicon molecular beam epitaxy using B2O3 by JACKMAN, T. E, HOUGHTON, D. C, DENHOFF, M. W, KECHANG, S, MCCAFFREY, J, JACKMAN, J. A, TUPPEN, C. G

    Published in Applied physics letters (05-09-1988)
    “…Coevaporation of B2O3 during silicon molecular beam epitaxy has been used to prepare heavily doped superlattices (pipi’s). Full activation up to 3×1020 cm−3…”
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    Journal Article
  17. 17

    High-power uncooled 975-nm Bragg grating stabilized thick-quantum-well lasers by Nguyen Hong Ky, Hu, M.H., Yabo Li, Xingsheng Liu, Kechang Song, Visovsky, N.J., Bhat, R., Chung-En Zah

    “…Coherence-collapse operation of a Bragg grating stabilized thick-quantum-well laser diode yields 975-nm wavelength emission with >40 dB side-mode-suppression…”
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    Conference Proceeding
  18. 18

    Reliability of High-Power 1060-nm DBR Lasers by Nguyen, H.K., Coleman, S., Visovsky, N.J., Yabo Li, Song, K., Davis, R.W., Hu, M.H., Loeber, D.A., Chung-En Zah

    “…We report highly reliable 1060-nm DBR lasers with a single-wavelength output power larger than 350 mW and a failure rate as low as 3.2 kFITs at a heat-sink…”
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    Conference Proceeding
  19. 19

    High power 1060-nm raised-ridge strained single-quantum-well lasers by Chung-En Zah, Yabo Li, Bhat, R., Kechang Song, Nick Visovsky, Hong Ky Nguyen, Xingsheng Liu, Hu, M., Nishiyama, N.

    “…We report a high kink-free facet power of 852 mW and a high single-wavelength facet power of 350 mW for 1060-nm raised-ridge Fabry-Perot (FP) and…”
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    Conference Proceeding