Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Yukta Timalsina"'
Autor:
Mohammad Rakib Uddin, Jin Wallner, Amit Dikshit, M. Jobayer Hossain, Yukta Timalsina, Nicholas M. Fahrenkopf, David L. Harame
Publikováno v:
Integrated Optics: Devices, Materials, and Technologies XXVII.
Autor:
Amit Dikshit, Jin Wallner, M. Rakib Uddin, M. Jobayer Hossain, Javery Mann, Amir Begovic, Yukta Timalsina, Lewis G. Carpenter, Gerald Leake, Christopher Baiocco, Colin McDonough, Nicholas Fahrenkopf, Chandra C. Cotter, Christopher Striemer, David Harame
Publikováno v:
Integrated Optics: Devices, Materials, and Technologies XXVII.
Autor:
Mohammad Rakib Uddin, Jin Wallner, Amit Dikshit, M. Jobayer Hossain, Yukta Timalsina, Nicholas M. Fahrenkopf, David L. Harame
Publikováno v:
Optical Components and Materials XX.
Autor:
M. Rakib Uddin, Jin Wallner, Amit Dikshit, M. Jobayer Hossain, Yukta Timalsina, Nicholas M. Fahrenkopf, David L. Harame
Publikováno v:
Frontiers in Optics + Laser Science 2022 (FIO, LS).
A unique structured carrier depletion ring modulator is fabricated. We achieved high modulation efficiency of 0.9nm with a large extinction ratio of about 20dB. The device has a free spectral range of about 13nm.
Autor:
M. Rakib Uddin, Jin Wallner, Amit Dikshit, Yukta Timalsina, S. Khatijah, Nicholas M. Fahrenkopf, David L. Harame
Publikováno v:
Optica Advanced Photonics Congress 2022.
A 30-µm length silicon rib-waveguide based on-chip optical attenuator is fabricated and experimentally demonstrated. For a wide range of wavelengths (1490-1590nm), the attenuator offers around 2.6 dB of attenuation at 1.5V.
Autor:
M. Rakib Uddin, Jin Wallner, Amit Dikshit, M. Jobayer Hossain, Yukta Timalsina, Nicholas M. Fahrenkopf, David L. Harame
Publikováno v:
Frontiers in Optics + Laser Science 2022 (FIO, LS).
A very compact ring resonator based multiplexer is demonstrated. The fabricated four channel multiplexer shows the extinction ratio of about 25dB in each of the four consecutive resonances with a channel spacing of 2nm.
Autor:
Nicholas M. Fahrenkopf, Pavan Bhargava, Seth Kruger, Christopher Baiocco, Michael R. Watts, Taehwan Kim, Christopher V. Poulton, Yukta Timalsina, Jelena Notaros, Erman Timurdogan, Ami Yaacobi, Vladimir Stojanovic, Tat Ngai
Publikováno v:
IEEE Journal of Solid-State Circuits. 54:3061-3074
With the growing demand for automotive LiDAR and the maturation of silicon photonics platforms, optical phased arrays (OPAs) have emerged as a key technology for solid-state optical beam-steering. In order to meet realistic automotive specifications
Autor:
Vladimir Stojanovic, Tat Ngai, Yukta Timalsina, Michael R. Watts, R. Wilcox, Nandish Mehta, Christopher Baiocco, Zhan Su, Jelena Notaros, Nicholas M. Fahrenkopf, Christopher V. Poulton, Seth Kruger, Erman Timurdogan
Publikováno v:
2020 IEEE Symposium on VLSI Technology.
The accuracy of conventional ADCs for high-frequency input signals is mainly limited by the sampling clock jitter. To address this issue, this paper demonstrates an ADC that uses low-jitter $( optical pulses to sample the input signal. A prototype tw
Autor:
Pavan Bhargava, Vladimir Stojanovic, Jelena Notaros, Yukta Timalsina, T. Ngai, Taehwan Kim, Michael R. Watts, Christopher Baiocco, Erman Timurdogan, Ami Yaacobi, Nicholas M. Fahrenkopf, Christopher V. Poulton, Seth Kruger
Publikováno v:
VLSI Circuits
We present the first integrated coherent LiDAR system with experimental ranging demonstrations operating within the eye-safe 1550nm band. Leveraging a unique wafer-scale 3D integration platform which includes customizable silicon photonics and nanosc
Autor:
Yukta Timalsina, Erman Timurdogan, Michael R. Watts, Nicholas M. Fahrenkopf, Taehwan Kim, Pavan Bhargava, Ami Yaacobi, Jelena Notaros, Christopher Baiocco, Seth Kruger, Christopher V. Poulton, Vladimir Stojanovic, Tat Ngai
Publikováno v:
ISSCC
The realization of a low-cost and robust optical beam-steering platform is a key enabler for a number of applications, including light detection and ranging (LIDAR) and free-space optical communications (FSO). Optical phased arrays (OPAs) have emerge