100 gb/s using PM-QPSK modulation design optical fiber transmission network

Hi wenhui feng,

I am answering your questions in the order you asked them. Since you are learning how to use OptiSystem, I would recommend you the following link first “100 Gbps DP-QPSK System with Digital Signal Processing” (http://optiwave.com/applications/100-gbps-dp-qpsk-system-with-digital-signal-processing/). It runs in 12 and 13 versions of the software. The DSP techniques is described briefly there. PM-QPSK modulation and demodulation are the essential components of the scheme.

For further reading (if you would like to get a better understanding), I can recommend you the paper of X. Liu, S. Chandrasekhar and J. Winzer “DSP Techniques Enabling Multi-Tb/s Superchannel Transmission”. It has a good general overview of DSP architecture as well as all building blocks of it. At the same time, it has many useful references for details (depens on what you are more interested in). Unfortunately, I can’t upload it due to copyright rules and regulations…

Hi wenhui feng,

This paper is from IEEE Signal Processing Magazine. You can get it throw IEEE Library. I referred it to you as a good source of general knowledge. There are many papers you can find about PM-QPSK in that library as well. In general, it comes from well-known from electrical communications QPSK technique (you should be able to find the description of it in any telecom textbook if you need), which is being applied for 2 polarizations of optical signal. Please, check your email.

It was one of the first papers that considered Optical QPSK in details. In my opinion, it is good for main understanding. As I mentioned before, there are many papers, which are related to different aspect of Optical QPSK technique application, were published after that (mostly in IEEE and Lightwave journals).

Hi you can access the documents ,provided by optiwave.You will find every component you want or your system.Also you will get some extra content to read about components also.