Monika Bhutani

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This paper investigates the effect of Self Phase Modulation (SPM) non-linearity on single channel optical communication system. For the analysis, different modulation formats: Differential Phase Shift Keying (DPSK), Duo-binary Return to Zero (DBRZ), Carrier Suppressed Return to Zero (CSRZ) and Differential Quadrature Phase Shift Keying (DQPSK) were(More)
Recently, two incidents involving the fall of kilocurie sources from telegamma units during repairs occurred in India. In one case it was a 60Co source of activity 222 TBq (6,000 Ci) and in the other case, it was a 137Cs source of activity 75.85 TBq (2,050 Ci). The line of action planned for the recovery of the sources was to cover the sources with large(More)
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