Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Hong Ky Nguyen"'
Autor:
Hong-Ky Nguyen, Kevin Lascola, Feng Xie, H.P. Leblanc, Dean J. Miller, Larry Hughes, Jie Wang
Publikováno v:
SPIE Proceedings.
Here we present lifetime test results of 4 groups of quantum cascade lasers (QCL) under various aging conditions including an accelerated life test. The total accumulated life time exceeds 1.5 million device·hours, which is the largest QCL reliabili
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::11af73f9293acd438abc48ee9d1ab6d4
https://doi.org/10.1117/12.2255069
https://doi.org/10.1117/12.2255069
Publikováno v:
Journal of Lightwave Technology. 27:893-900
A new method for electrically measuring optical performance degradation in InP-based semiconductor optical amplifiers (SOAs) is presented. It is shown that this degradation can be directly qualified through measurements of electrical subthreshold dif
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b0d1becd4496d1862f75afc88638493c
https://doi.org/10.1109/jlt.2008.922213
https://doi.org/10.1109/jlt.2008.922213
Autor:
M.K. Davis, S. Balsamo, Hong Ky Nguyen, G.M. Smith, D.A.S. Loeber, G. Ghislotti, Martin H. Hu
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 11:1197-1208
Wavelength stabilization of high-power pump lasers for fiber amplifier applications involves complex interactions between the laser chip and the fiber Bragg grating (FBG). We present a comprehensive theoretical model for the window of operation in th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::27fbbebf171a7d3a729e39d7e763e296
https://doi.org/10.1109/jstqe.2005.853850
https://doi.org/10.1109/jstqe.2005.853850
Autor:
Hong Ky Nguyen, Xingsheng Liu, Michael H. Rasmussen, Catherine Caneau, Chung-En Zah, Martin H. Hu, R.W. Davis
Publikováno v:
IEEE Transactions on Advanced Packaging. 27:640-646
Epi-down and epi-up bonded high-power single-mode 980-nm lasers have been studied in terms of bonding process, thermal behavior, optical performances, and long-term laser reliability. We demonstrated that epi-down bonding can offer lower thermal resi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db880a882a83a6922255fd05de30aa49
https://doi.org/10.1109/tadvp.2004.831862
https://doi.org/10.1109/tadvp.2004.831862
Autor:
Hong Ky Nguyen, Jacques Gollier, Kechang Song, Rajaram Bhat, Nick Visovsky, Yabo Li, Chung-En Zah, Lawrence C. Hughes, Martin H. Hu, Xingsheng Liu, Nobuhiko Nishiyama
Publikováno v:
IEEE Photonics Technology Letters. 18:682-684
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 MgO-doped lithium niobate waveguide in the most compact single-pass configuration. The green p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5bbd9874ca6275b1b13f185661de0b39
https://doi.org/10.1109/lpt.2006.870077
https://doi.org/10.1109/lpt.2006.870077
Autor:
Hong Ky Nguyen, Xingsheng Liu, William James Miller, Yabo Li, Nick Visovsky, Sean Coleman, Chung-En Zah, Kechang Song, Martin H. Hu, Lawrence C. Hughes, Jacques Gollier, Nobuhiko Nishiyama, Rajaram Bhat
Publikováno v:
IEEE Photonics Technology Letters. 18:616-618
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 emission by second-harmonic generation. Single-wavelength power of 387 mW at 1060-nm wavelength a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a212b9d4cc19c529b52be5c6ea83809
https://doi.org/10.1109/lpt.2006.870057
https://doi.org/10.1109/lpt.2006.870057
Autor:
Guowen Yang, Hong-Ky Nguyen, A. Kussmaul, Martin H. Hu, M.K. Davis, Chung-En Zah, G.M. Smith, D.A.S. Loeber, Rajaram Bhat
Publikováno v:
IEEE Photonics Technology Letters. 16:981-983
We report high-performance 980-nm ridge waveguide quantum-well lasers with extremely low vertical beam divergence of 13/spl deg/. A very small aspect ratio of 1.6 is obtained at high operating power of 900 mW. In addition to the more circular beam, l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9ede03e662ab8e7069ba75b86f9c9b23
https://doi.org/10.1109/lpt.2004.824662
https://doi.org/10.1109/lpt.2004.824662
Autor:
Dean J. Miller, Hong-Ky Nguyen, Feng Xie, Larry Hughes, Kevin Lascola, Jie Wang, Jianguo Wen, H.P. Leblanc
Publikováno v:
Applied Physics Letters. 109:121111
Here, we present results of quantum cascade laser lifetime tests under various aging conditions including an accelerated life test. The total accumulated life time exceeds 1.5 × 106 device hours. The longest single device aging time was 46 500 hours
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c4ab6c7eb8b0870f69181019e790268
https://doi.org/10.1063/1.4962808
https://doi.org/10.1063/1.4962808
Publikováno v:
2009 IEEE LEOS Annual Meeting Conference Proceedings.
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 various high-stress conditions.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d44b58153d322d4ee0f4ba8126b4ee02
https://doi.org/10.1109/leos.2009.5343131
https://doi.org/10.1109/leos.2009.5343131
Autor:
Martin H. Hu, Yabo Li, Hong Ky Nguyen, Chung-En Zah, Nick Visovsky, Kechang Song, Sean Coleman
Publikováno v:
SPIE Proceedings.
We report for the first time, to the best of our knowledge, 304 mW green light emission generated by frequency doubling of the output from a 1060-nm DBR semiconductor laser using a periodically poled MgO-doped lithium niobate waveguide in a compact s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a2be74256bee06d4f64a8f88539f6b21
https://doi.org/10.1117/12.770678
https://doi.org/10.1117/12.770678