15 Questions 33 Answers 0 Followers
Questions related from Dhiman Kakati
Consider a Nyquist-WDM system using M-ary raised cosine pulses to modulate the optical carrier. What would be the impact of the different roll-off factor values in the data rate and transmission...
24 August 2018 1,073 0 View
Dear all, I want to find Spectral efficiency (b/s/Hz) of my designed systems. For this, I need to find two factors, (1) bit rate and (2) Bandwidth required. Can we find the bandwidth from the...
06 July 2018 8,329 2 View
Dear everyone, I need to plot BER vs SNR/OSNR of a fiber-optic communication system. Which one would be better while setting SNR or OSNR in the system: Method 1: Keep signal power constant...
09 June 2018 5,775 21 View
I am trying to implement VLC communication using non-coherent source (i.e. LED) using OFDM with direct detection. so my question are following: Is it possible to use 16QAM-OFDM with direct...
07 November 2017 1,991 4 View
I need to simulate Optical Signal to Noise Ratio (OSNR) vs BER and SNR vs BER plot in Optisystem v.13. So, how can I define a custom SNR or OSNR for the same. What would be the appropriate way to...
12 October 2017 3,721 1 View
I am trying to design a Radio over Fiber (RoF) system using modulation formats such as DQPSK, 16QAM. so there I have generated the RF carrier frequency using Sine wave generator for simulation...
20 March 2017 1,389 5 View
Hello everyone, I am attaching herewith few time domain visualizer output got from simulation using optiSystem, and some voltage overshoot and undershoot is noticed, it is seen in most of the...
29 May 2016 2,088 4 View
Dear Everyone, I am presently Working on WDM system Design Using Optisystem V13 Simulation platform. I am finding some kind of unusual Eye Diagram. Can anyone tell me What may be the probable...
29 March 2016 921 4 View
I want to transmit a dual tone or dual wavelength optical signal (i.e. the multiplexed one) through a standard single mode fiber, but when I transmit the signal it gets distorted because of...
02 March 2016 6,082 7 View
What is optical injection locking (OIL)..? How to implement using optisystem..? improving the performance with respect to phase noise and stability by using OIL is advantageous but it increases...
19 February 2016 3,290 3 View
Dear Sir/madam, I need to separate or select a specific wavelength from a light source that consists of all the wavelengths from 410 nm to 900 nm. Please suggest me techniques available to do...
05 December 2015 7,098 13 View
Hi, in case of Mach-Zehnder modulator (MZM) can we set phase shift in the two branches according to our wish, if yes how to do so. Is there any relation of it with the bias voltages and the phase...
11 November 2015 2,837 3 View
please see the attached screenshot. Thanks, Dhiman Kakati
25 August 2015 7,909 8 View
Presently designing an Hybrid optical network (wired and wireless) using optisystem 13. Thanks, Dhiman Kakati
25 August 2015 5,970 2 View
I need to generate two carrier frequency by driving the Mach-Zehnder Modulator at optical carrier suppression modulation point. what should be the bias voltages if I want to use a 25 GHz RF...
01 January 1970 7,039 3 View
