Zobrazeno 1 - 10
of 233
pro vyhledávání: '"Xuezhe Zheng"'
Publikováno v:
AI, Vol 3, Iss 3, Pp 571-581 (2022)
Since tiny optical glass is the key component in various optical instruments, more and more researchers have paid attention to automatic defect detection on tiny optical glass in recent years. It remains a challenging problem, as the defects are extr
Externí odkaz:
https://doaj.org/article/b4d7cc62e4974974b1e0f6ad4da8201f
Publikováno v:
IEEE Photonics Journal, Vol 10, Iss 6, Pp 1-12 (2018)
We propose an analytical model to evaluate three different methods for generating the optical four-level pulse-amplitude-modulation (PAM-4) signal with a standard silicon Mach-Zehnder (M-Z) optical modulator. With this model, we further use the unifo
Externí odkaz:
https://doaj.org/article/1b426fd97cea4fbcb88320cef7f53cfd
Autor:
Jin-Hyoung Lee, Daniel Y. Lee, Ivan Shubin, Jock Bovington, Stevan S. Djordjevic, Shiyun Lin, Ying Luo, Jin Yao, John E. Cunningham, Kannan Raj, Ashok V. Krishnamoorthy, Xuezhe Zheng
Publikováno v:
IEEE Photonics Journal, Vol 8, Iss 5, Pp 1-7 (2016)
We present a real-time approach for stabilizing a III-V/Si hybrid external-cavity laser implemented using microring monitoring and a feedback control loop. Laser mode stabilization over bias current and stage temperature variations are experimentally
Externí odkaz:
https://doaj.org/article/9b02c455582a45cba921dc2bcece7d9d
Autor:
John E. Cunningham, Ashok V. Krishnamoorthy, Kannan Raj, Roshanak Shafiiha, Mehdi Asghari, Shirong Liao, Cheng-Chih Kung, Joan Fong, Jin-Hyoung Lee, Dazeng Feng, Jin Yao, Hiren Thacker, Ivan Shubin, Guoliang Li, Xuezhe Zheng, Ying Luo
Publikováno v:
Micromachines, Vol 3, Iss 2, Pp 345-363 (2012)
We have investigated the selective epitaxial growth of GeSi bulk material on silicon-on-insulator substrates by reduced pressure chemical vapor deposition. We employed AFM, SIMS, and Hall measurements, to characterize the GeSi heteroepitaxy quality.
Externí odkaz:
https://doaj.org/article/855d77c5c3cd477a81a914ee9ab72c13
Autor:
Ashok V. Krishnamoorthy, Xuezhe Zheng, Guoliang Li, Jin Yao, Thierry Pinguet, Attila Mekis, Hiren Thacker, Ivan Shubin, Ying Luo, Kannan Raj, John E. Cunningham
Publikováno v:
IEEE Photonics Journal, Vol 3, Iss 3, Pp 567-579 (2011)
We present manufacturing tolerances of cascaded silicon microring resonators fabricated in a commercial 130-nm complementary-oxide semiconductor (CMOS) foundry using 193-nm lithography and provide statistics gathered from over 500 four-channel micror
Externí odkaz:
https://doaj.org/article/68ebd1f292c946b98df1dfedde066c0d
Autor:
Hao Wu, Chen Zhu, Ning Cheng, Chenlei Li, Min Teng, Pan Sun, Feng Wang, Yinchao Du, Gang Cheng, Xuezhe Zheng
Publikováno v:
2023 Optical Fiber Communications Conference and Exhibition (OFC).
An end-to-end link model is developed to optimize silicon PIC and evaluate the coherent system performance. 128Gbaud 16-QAM data transmission based on silicon photonics is achieved with -9.1dBm Tx-output power and 26dB Rx OSNR sensitivity.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d51e3e8ab5556870a3a4314835c6ad31
https://doi.org/10.23919/ofc49934.2023.10117024
https://doi.org/10.23919/ofc49934.2023.10117024
Publikováno v:
2023 Optical Fiber Communications Conference and Exhibition (OFC).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4cd4c64340827a40c3cbb73d1b6831f7
https://doi.org/10.23919/ofc49934.2023.10117116
https://doi.org/10.23919/ofc49934.2023.10117116
Publikováno v:
Optical Fiber Communication Conference (OFC) 2023.
A simple method using DC-balanced line-coding and receiver-side high-pass filtering is proposed to mitigate MPI in high-speed PAM4 transmission. 5-dB improvement in MPI tolerance is achieved in both simulations and experiments for 25GBd PAM4 transmis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f8d0f9d41fc4a11cf43cf2bff262d79
https://doi.org/10.1364/ofc.2023.w2a.24
https://doi.org/10.1364/ofc.2023.w2a.24
Publikováno v:
Optical Fiber Communication Conference (OFC) 2022.
A SiN edge coupler is experimentally demonstrated with a < 1.9 dB/facet loss over the whole O band for a 4μm MFD fiber. The power is further transformed into Si waveguide using a SiN-to-Si transition.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c9372b45b56bdddec751a3c0bb872c0
https://doi.org/10.1364/ofc.2022.th2a.5
https://doi.org/10.1364/ofc.2022.th2a.5