Zobrazeno 61 - 70
of 73
pro vyhledávání: '"Justin Norman"'
Publikováno v:
2017 IEEE Photonics Conference (IPC).
After discussing the reliability issues limiting existing quantum well InP-based lasers, and the past reliability challenges of lasers grown on silicon substrates, we will show the recent reliability test results of a number of different types of qua
Autor:
Daehwan Jung, Arthur C. Gossard, Alan Y. Liu, Xue Huang, Minjoo Larry Lee, Justin Norman, John E. Bowers, Jon D. Peters
Publikováno v:
Optics letters. 42(2)
We demonstrate the first electrically pumped continuous-wave (CW) III-V semiconductor lasers epitaxially grown on on-axis (001) silicon substrates without offcut or germanium layers, using InAs/GaAs quantum dots as the active region and an intermedia
Publikováno v:
Frontiers in Optics 2017.
We report for the first time electro-optic phase and amplitude modulators in GaAs/AlGaAs epitaxial layers grown on Si substrates. Intensity modulators with 4-mm long electrodes have Vπ of 3.59V corresponding to 1.44 V-cm modulation efficiency.
Autor:
Alfredo Torres, Justin Norman, Daehwan Jung, Arthur C. Gossard, Di Liang, Duanni Huang, Alan Y. Liu, Kei May Lau, Yating Wan, Qiang Li, Chong Zhang, Evelyn L. Hu, Michael Kennedy, John E. Bowers
Publikováno v:
Conference on Lasers and Electro-Optics.
We demonstrate the first electrically pumped quantum-dot micro-ring lasers epitaxially grown on (001) silicon. Continuous-wave lasing around 1.3 μm was achieved with ultra-low thresholds as small as 0.6 mA and maximum operation temperatures up to 10
Autor:
Yu Geng, Qiang Li, Arthur C. Gossard, Yating Wan, Kei May Lau, Justin Norman, Weng W. Chow, Evelyn L. Hu, John E. Bowers, Alan Y. Liu
Publikováno v:
OFC
Heteroepitaxially grown InAs quantum dot lasers were demonstrated on (001) Si under continuous-wave optical pumping with low thresholds (down to 35 μW). The feasibility of integrating active and passive devices through electrical injection was analy
Autor:
Songtao Liu, Robert W. Herrick, Kunal Mukherjee, Yating Wan, John E. Bowers, Daehwan Jung, Jennifer Selvidge, Justin Norman, Arthur C. Gossard
Publikováno v:
physica status solidi (a). 216:1800602
Publikováno v:
Materials Letters. 117:241-243
The centrifugation method was proposed to extract Au nanocages (AuNCs) from a mixture of the bimetallic Au and Ag alloyed nanocages, Ag and Au core–shell structure, and Au-pitted silver nanocubes. The DDA simulation was found to be a powerful tool
Publikováno v:
Applied Physics Letters. 113:061105
We investigate, both experimentally and theoretically, the gain characteristics of modulation p-doped 1.3 μm quantum dot lasers epitaxially grown on silicon. Gain spectra and transparency points are measured for structurally identical lasers with va
Publikováno v:
Applied Physics Letters. 113:041108
Optical frequency comb direct generation on silicon by mode locked lasers (MLLs) is promising as it offers high wavelength channel counts and ultrashort pulses that will benefit future large-scale high capacity silicon photonic integrated circuits. H
Autor:
Daisuke Inoue, Justin Norman, Arthur C. Gossard, Daehwan Jung, Yating Wan, Chen Shang, John E. Bowers
Publikováno v:
Photonics Research. 6:776
Microring lasers feature ultralow thresholds and inherent wavelength-division multiplexing functionalities, offering an attractive approach to miniaturizing photonics in a compact area. Here, we present static and dynamic properties of microring quan