Zobrazeno 1 - 10
of 109
pro vyhledávání: '"Jerome K. Butler"'
Autor:
Haosen Tan, Weida Zhang, Yudong Chen, Yuhe Xia, Chris Newey, Tso-Min Chou, Nai-Hsiang Sun, Jerome K. Butler, Gary A. Evans
Publikováno v:
IEEE Photonics Journal, Vol 14, Iss 6, Pp 1-10 (2022)
A simple thin film effective index analysis for first-order gratings in Si photonic waveguides is shown to provide highly accurate results for reflected and transmitted power spectrums as long as the waveguide remains single mode and non-radiating. A
Externí odkaz:
https://doaj.org/article/f109c095828c461c89785ad76fac35a1
Publikováno v:
IEEE Access, Vol 10, Pp 102669-102690 (2022)
We show that in an optical waveguide with no material losses at wavelengths near the second-order Bragg condition, there exists two pairs of modes. One pair has identical propagation constants but have different attenuation coefficients, while a seco
Externí odkaz:
https://doaj.org/article/72358429ece1464ebf225d5d34b0a55f
Autor:
Haosen Tan, Weida Zhang, Yudong Chen, Yuhe Xia, Chris Newey, Tso-Min Chou, Nai-Hsiang Sun, Jerome K. Butler, Gary A. Evans
Publikováno v:
IEEE Photonics Journal, Vol 15, Iss 5, Pp 1-2 (2023)
We report errors in Table III of (Tan et al. 2022) that requires changing the text discussions in four places. These errors, due to using an incorrect thickness for the middle layer of a three-layer waveguide in an analytic formula (Huang et al., 201
Externí odkaz:
https://doaj.org/article/7b9aa45be9164e17987e2d5bab001ec2
Publikováno v:
Materials Sciences and Applications. 12:622-638
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aacf778971705b4a6a57925401d9dce8
https://doi.org/10.4236/msa.2021.1212042
https://doi.org/10.4236/msa.2021.1212042
Autor:
Maryam Dezfuli, Freddie Castillo, Weida Zhang, Scott McWilliams, Jerome K. Butler, Ralph Johnson, Nai-Hsiang Sun, Gary A. Evans
Publikováno v:
Novel In-Plane Semiconductor Lasers XXI.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d8e9eb600a4dc36e3984a8ff57f027f7
https://doi.org/10.1117/12.2608337
https://doi.org/10.1117/12.2608337
Publikováno v:
Journal of Lightwave Technology. 35:2200-2210
An equivalent surface current method is used to derive an analytic expression that approximates the coupling coefficient, reflectivity bandwidth, and group velocity for coupling between identical and nonidentical TE modes in an asymmetric three-layer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e6440314c278d521508943773ad5a8a
https://doi.org/10.1109/jlt.2017.2661842
https://doi.org/10.1109/jlt.2017.2661842
Autor:
Xuezhe Zheng, Ashok V. Krishnamoorthy, Ruo-Hua He, Jin Yao, Jerome K. Butler, Jay B. Kirk, Gary A. Evans
Publikováno v:
Journal of Lightwave Technology. 35:2234-2242
The use of a thin, low-index liner layer over a surface grating covered by a high-index cover layer in a III-V alloy waveguide significantly improves the coupling efficiency of grating couplers, and therefore, reduces the length of such couplers by a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b81aefdf2645f4c1a72d388621dfeaa
https://doi.org/10.1109/jlt.2017.2651680
https://doi.org/10.1109/jlt.2017.2651680
Autor:
Jerome K. Butler, Gary A. Evans, Jin Huang, Linglin Jiang, Preston Young, Daniel J. Smith, Mark Schuckert, Duy Phan
Publikováno v:
High-Power Diode Laser Technology XV.
Two AlGaAs/GaAs broadened waveguide laser structures, one asymmetric, one nearly symmetric, were designed for high power at about 780 nm. The design concept is based on low losses and higher gain for the fundamental mode with higher losses and lower
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e8e6fec8206204045521f8a82781d89d
https://doi.org/10.1117/12.2255065
https://doi.org/10.1117/12.2255065
Autor:
Shih-Chiang Lin, Jung-Sheng Chiang, Jerome K. Butler, Wen-Fung Liu, Nai-Hsiang Sun, Jiun-Jie Liau, Gary A. Evans, Chia-Ming Hu
Publikováno v:
Fiber and Integrated Optics. 33:47-55
The experimental results of the radiation for second-order fiber Bragg gratings, which are made of a single-mode photosensitive fiber (PS-1500; Fiber-Core Corp.) and a single-mode fiber (SMF-28; Corning Inc.), by a phase mask writing fabrication tech
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d05132c66be92d858701722433e380f
https://doi.org/10.1080/01468030.2013.861951
https://doi.org/10.1080/01468030.2013.861951
Autor:
Gary A. Evans, Jung-Sheng Chiang, Jerome K. Butler, Nai-Hsiang Sun, Ming-Yu Tsai, Tsum-Yen He
Publikováno v:
2016 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD).
The reflectivity of forty-grating sections consisting of two grating periods is simulated. Close difference of two gratings periods causes similarity of the reflectivity of forty-gratings and single gratings except for the phase shift phenomenon.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::44828345fd429905615f6178c03d75ab
https://doi.org/10.1109/nusod.2016.7547101
https://doi.org/10.1109/nusod.2016.7547101