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Jalandhar, India

Singh R.,CTIEMT | Walia R.S.,PEC University of Technology
International Journal of Applied Engineering Research | Year: 2012

Limited efforts have been done towards enhancing the productivity of Abrasive Flow Machining (AFM) process with regard to better quality of work piece surface. In recent years, hybrid-machining processes have been developed to improve the efficiency of a process by clubbing the advantages of different machining processes and avoiding limitations. In the present study, the abrasive flow machining was hybridized with the magnetic force for productivity enhancement in terms of material removal (MR). The magnetic force is generate around the full length of the cylindrical work piece by applying DC current to the solenoid, which provides the magnetic force to the abrasive particles normal to the axis of work piece. The various parameters affecting the process are described here and the effect of the key parameters on the performance of process has been studied. © Research India Publications. Source


Kaur I.,Sri Guru Granth Sahib World University | Bhatia K.S.,Sri Guru Granth Sahib World University | Kaur H.,CTIEMT
Journal of Optical Communications | Year: 2015

In this paper, we analyze polarization-multiplexed quadrature phase shift keying (PM-QPSK) signals using different receiver with and without differential decoding for PM-QPSK modulation and reception using training sequence-based least mean square (LMS) receiver, PM-QPSK with external local oscillator, PM-QPSK modulation and LMS dynamic receiver and compare their results for bit error rate. © 2015 by De Gruyter. Source


Bharti M.,AIACTandR | Sharma A.K.,N.I.T. | Kumar M.,CTIEMT
2014 International Conference on Data Mining and Intelligent Computing, ICDMIC 2014 | Year: 2014

In this paper, a simulative analysis is presented to evaluate the performance of Optical Code Division Multiple Access (OCDMA) system to enhance security and reduce dispersion using 2-code keying i.e. bipolar coding approach. In this analysis for the first time we have used Walsh Hadamard codes (excluding the code words consisting of all 'ones') in bipolar arrangement to ensure successful transmission of OCDMA signal and to prevent wire tapper simultaneously for an authorized user as with single authorized user in the system transmitting information at a particular instant of time using single code keying approach there is always a possibility that a wire tapper can easily retrieve the information without any effort. Performance of the system is reported for variation in fiber length in form of Quality Factor and received optical power and values of these parameters are plotted on graphs. Investigations reveal that the proposed approach enhances the security of the system that is further proved by the eye diagrams. © 2014 IEEE. Source


Kaur P.,Sri Guru Granth Sahib World University | Bhatia K.S.,Sri Guru Granth Sahib World University | Kaur H.,CTIEMT
Journal of Optical Communications | Year: 2015

In this paper, we presented the wavelength division multiplexing (WDM) system based on optical add-drop multiplexer (OADM). We analysed the effect of loss on Q factor and BER for different fiber lengths. The NRZ modulation format is used for transmitting the signal for 9.953-Gb/s 16-channel WDM system based on OADM. © 2015 by De Gruyter. Source


Gupta A.,Sri Guru Granth Sahib World University | Bhatia K.S.,Sri Guru Granth Sahib World University | Kaur H.,CTIEMT
Optik | Year: 2014

Based on various modulation techniques available for coherent communication systems, in this paper, we compared 4-QAM and DP-QPSK for coherent optical communication for achieving high data transmission rates. We analyzed these comparisons using power spectrum and constellation diagrams. © 2014 Elsevier GmbH. All rights reserved. Source

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