37 - Gaurav Pandey - Academia.edu (original) (raw)
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Papers by 37 - Gaurav Pandey
Optik - International Journal for Light and Electron Optics, 2014
Here we have demonstrated a novel architecture of colorless wavelength division multiplexed-passi... more Here we have demonstrated a novel architecture of colorless wavelength division multiplexed-passive optical network (WDM-PON) and analyze its performance which is capable of transmitting 10 Gbps data symmetrically in both downstream and upstream. In this architecture downstream data is subcarrier modulated (SCM) using radio frequency (RF) as subcarrier and laser frequency as carrier with the help of a Mach-Zehnder modulator (MZM). For upstream data modulation an electro-absorption modulator, an optical coupler and reflective semiconductor optical amplifier (RSOA) are used. Upstream data is transmitted through wavelength conversion between pump wavelength and continuous wave light sent from central office (CO) using cross gain modulation (XGM) in RSOA. Pump wavelengths have separate wavelength band than the carrier's wavelength sent from optical network unit (ONU) and can be chosen any one in its band. Since carrier reuse scheme is implemented so all the ONUs are operates in colorless mode. Effect of ER of delay interferometer (DI) on output OCSR of DI for different input OCSR is performed for SCM data. Simulation is performed with all 16 downlink and 16 uplink channels having data rate of 10 Gbps having acceptable performance.
2010 International Conference on Signal Acquisition and Processing, 2010
Abstract-- In this paper we are dealing with a linearly swept-frequency cosine signal so called ... more Abstract-- In this paper we are dealing with a linearly swept-frequency cosine signal so called chirp function. We are generating an image row of the same function of required frequency (frequency f = 1 ... around 256 pixel/period, amplitude = 1). After that we are stacking 20 ...
2010 International Conference on Signal Acquisition and Processing, 2010
In this paper we are generating a gray gradient image with clearly visible object edges and witho... more In this paper we are generating a gray gradient image with clearly visible object edges and without branches(eg letter ¿B¿ = 3 objects O1, O2, O3, use image¿text.bmp¿), then we are determining the contour lines of the objects as lists of pixel coordinates and of contour codes ...
Optical and Quantum Electronics, 2014
ABSTRACT
Journal of Biotechnology, 1999
A recombinant plasmid containing the complete lacZ gene downstream of the T7 promoter was used to... more A recombinant plasmid containing the complete lacZ gene downstream of the T7 promoter was used to transform Escherichia coli containing another plasmid which had the T7 RNA polymerase gene under the control of heat inducible λPL promoter. This recombinant E. coli containing the two plasmids was studied in order to enhance β-galactosidase expression. The heat shock time which effectively regulates
Optik - International Journal for Light and Electron Optics, 2014
Here we have demonstrated a novel architecture of colorless wavelength division multiplexed-passi... more Here we have demonstrated a novel architecture of colorless wavelength division multiplexed-passive optical network (WDM-PON) and analyze its performance which is capable of transmitting 10 Gbps data symmetrically in both downstream and upstream. In this architecture downstream data is subcarrier modulated (SCM) using radio frequency (RF) as subcarrier and laser frequency as carrier with the help of a Mach-Zehnder modulator (MZM). For upstream data modulation an electro-absorption modulator, an optical coupler and reflective semiconductor optical amplifier (RSOA) are used. Upstream data is transmitted through wavelength conversion between pump wavelength and continuous wave light sent from central office (CO) using cross gain modulation (XGM) in RSOA. Pump wavelengths have separate wavelength band than the carrier's wavelength sent from optical network unit (ONU) and can be chosen any one in its band. Since carrier reuse scheme is implemented so all the ONUs are operates in colorless mode. Effect of ER of delay interferometer (DI) on output OCSR of DI for different input OCSR is performed for SCM data. Simulation is performed with all 16 downlink and 16 uplink channels having data rate of 10 Gbps having acceptable performance.
2010 International Conference on Signal Acquisition and Processing, 2010
Abstract-- In this paper we are dealing with a linearly swept-frequency cosine signal so called ... more Abstract-- In this paper we are dealing with a linearly swept-frequency cosine signal so called chirp function. We are generating an image row of the same function of required frequency (frequency f = 1 ... around 256 pixel/period, amplitude = 1). After that we are stacking 20 ...
2010 International Conference on Signal Acquisition and Processing, 2010
In this paper we are generating a gray gradient image with clearly visible object edges and witho... more In this paper we are generating a gray gradient image with clearly visible object edges and without branches(eg letter ¿B¿ = 3 objects O1, O2, O3, use image¿text.bmp¿), then we are determining the contour lines of the objects as lists of pixel coordinates and of contour codes ...
Optical and Quantum Electronics, 2014
ABSTRACT
Journal of Biotechnology, 1999
A recombinant plasmid containing the complete lacZ gene downstream of the T7 promoter was used to... more A recombinant plasmid containing the complete lacZ gene downstream of the T7 promoter was used to transform Escherichia coli containing another plasmid which had the T7 RNA polymerase gene under the control of heat inducible λPL promoter. This recombinant E. coli containing the two plasmids was studied in order to enhance β-galactosidase expression. The heat shock time which effectively regulates