Search Results - "Khanna, Ginni"
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1
A Robust Adaptive Pre-Distortion Method for Optical Communication Transmitters
Published in IEEE photonics technology letters (01-04-2016)“…Present and next generation optical communication systems are constantly being developed to operate at higher baud rates and higher modulation formats. It then…”
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Journal Article -
2
Single-Carrier 400G 64QAM and 128QAM DWDM Field Trial Transmission Over Metro Legacy Links
Published in IEEE photonics technology letters (15-01-2017)“…We report on the results of a field trial carried out on a Telecom Italia metro link, targeting short data center interconnect applications. The test-bed…”
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Journal Article -
3
Long-Haul Transmission of PM-16QAM-, PM-32QAM-, and PM-64QAM-Based Terabit Superchannels Over a Field Deployed Legacy Fiber
Published in Journal of lightwave technology (01-07-2016)“…Increase in transmission symbol-rate as well as order of quadrature amplitude modulation (QAM) is identified as the most economical way to reduce cost per…”
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Journal Article -
4
Complex-Valued Neural Network Design for Mitigation of Signal Distortions in Optical Links
Published in Journal of lightwave technology (15-03-2021)“…Nonlinearity compensation is considered as a key enabler to increase channel transmission rates in the installed optical communication systems. Recently,…”
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Journal Article -
5
Low-Resolution Digital Pre-Compensation Enabled by Digital Resolution Enhancer
Published in Journal of lightwave technology (15-03-2019)“…Digital pre-compensation (DPC) is an indispensable block of state-of-the-art optical transceivers, and a key enabler for high-order modulation formats (HOMFs)…”
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Journal Article -
6
Adaptive Transmitter Pre-Distortion Using Feedback From the Far-End Receiver
Published in IEEE photonics technology letters (01-02-2018)“…In recent years, digital pre-distortion has emerged as a powerful approach to compensate linear and non-linear imperfections of the transmitter. Previous…”
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Journal Article -
7
Digital pre-compensation techniques enabling high-capacity bandwidth variable transponders
Published in Optics communications (15-02-2018)“…Digital pre-compensation techniques are among the enablers for cost-efficient high-capacity transponders. In this paper we describe various methods to mitigate…”
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Journal Article -
8
Autonomous intelligent transponder enabling adaptive network optimization in a live network field trial
Published in Journal of optical communications and networking (01-09-2019)“…We introduce a new transponder type for optical networks called an autonomous intelligent transponder (AIT). It is capable of autonomously adapting…”
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Journal Article -
9
220 GBaud Signal Generation Enabled by a Two-channel 256 GSa/s Arbitrary Waveform Generator and Advanced DSP
Published in 2020 European Conference on Optical Communications (ECOC) (01-12-2020)“…We report, to the best of our knowledge, the highest symbol rate of 220 GBaud in optical back-to-back QPSK transmission enabled by a new 256 GSa/s SiGe…”
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Conference Proceeding -
10
Towards All Optical DCI Networks
Published in 2020 Optical Fiber Communications Conference and Exhibition (OFC) (01-03-2020)“…We propose and experimentally demonstrate an all-optical architecture for data center interconnect networks with reconfiguration times of a few seconds…”
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Conference Proceeding -
11
A memory polynomial based digital pre-distorter for high power transmitter components
Published in 2017 Optical Fiber Communications Conference and Exhibition (OFC) (01-03-2017)“…An adaptive digital pre-distortion method based on memory polynomials to compensate for non-linearities in high power optical transmitters is presented. Gains…”
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Conference Proceeding -
12
400G single carrier transmission in 50 GHz grid enabled by adaptive digital pre-distortion
Published in 2016 Optical Fiber Communications Conference and Exhibition (OFC) (01-03-2016)“…An adaptive digital pre-distortion method to enable single carrier 400G DP-128QAM transmission over 328 km fiber with 30% FEC is presented. Experimental…”
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Conference Proceeding -
13
Accurate Estimation of Transmitter I/Q Skew for High-Rate Spectrally Efficient Optical Transponders
Published in 2018 European Conference on Optical Communication (ECOC) (01-09-2018)“…We present a phase noise canceler to improve the accuracy of transmitter I/Q skew estimation for high baud-rate optical transponders using high-order…”
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Conference Proceeding -
14
Experimental Verification of 400G 64QAM Using 4 Bits DACs Enabled by Digital Resolution Enhancer
Published in 2018 European Conference on Optical Communication (ECOC) (01-09-2018)“…Employing DACs with low resolution plays a significant role in reducing the transponder power consumption. We experimentally verified the benefit of a digital…”
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Conference Proceeding -
15
Joint adaptive pre-compensation of transmitter I/Q skew and frequency response for high order modulation formats and high baud rates
Published in 2015 Optical Fiber Communications Conference and Exhibition (OFC) (01-03-2015)“…We present a digital algorithm for joint pre-compensation of the low-pass frequency response and I/Q skew in transmitters. Experimental results for DP-16QAM to…”
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Conference Proceeding -
16
A memory polynomial based adaptive digital pre-distorter for optical communication transmitters
Published in 2017 19th International Conference on Transparent Optical Networks (ICTON) (01-07-2017)“…We present a robust adaptive digital pre-distortion technique to mitigate the linear and non-linear degradation of optical communication transmitter…”
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Conference Proceeding -
17
Joint linear and non-linear adaptive pre-distortion of high baud rate transmitters for high-order modulation formats
Published in 2016 21st OptoElectronics and Communications Conference (OECC) held jointly with 2016 International Conference on Photonics in Switching (PS) (01-07-2016)“…We review a digital pre-distortion technique to mitigate linear and nonlinear impairments from analog components. We assess the technique's effectiveness and…”
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Conference Proceeding -
18
Record field demonstration of C-band multi-terabit 16QAM, 32QAM and 64QAM over 762km of SSMF
Published in 2015 Opto-Electronics and Communications Conference (OECC) (01-06-2015)“…We demonstrate a record 38.4Tb/s 64QAM C-band transmission over 762km of field deployed SSMF fiber, connecting Lyon and Marseille, France, employing hybrid…”
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Conference Proceeding Journal Article -
19
Multi-flex field trial over 762km of G.652 SSMF using programmable modulation formats up to 64QAM
Published in 2016 Optical Fiber Communications Conference and Exhibition (OFC) (01-03-2016)“…We demonstrate next-generation network upgrade scenarios using flexi-format (PM-QPSK→PM-64QAM) and flexi-rate (100G→300G) transmission over field-deployed…”
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Conference Proceeding