光纤通信（论文）汇总.docx

刘尔超通信073班
TOPIC:A discussion about Time-division Multiplexing
ABSTRACT:
Will multi-channel light signals with time multiplex way that they're in the same root in the fiber transmission, realize ultra-high speed transmission, achieve greatly expand capacity of purpose
requirement of achieving Channel Multiplexing
principle of Channel Demultiplexing
Performance
吴建兴通信073班
Topic: Improve optical receiver sensitivity by Using a EDFA as the preamplifier circuits
Outlines:
To calculate the receiver sensitivity ,we need to include all sources of current noise at the receiver.
Optical amplifiers are routinely used for improving the sensitivity of optical receivers by preamplifying the optical signal.
3. Research the receiver sensitivity and signal gain relationship.
申定辉通信073班
WDM Light-wave System
ABSTRACT:
The origin ,development and principle of WDM
ponents and characteristics of WDM
Key technologies and problems existing in the design of WDM
The application of WDM
刘宇滕通信073班
Code division multiplexing introduction
Abstract:To code division multiplexing of related principles of introduction:Code division multiplexing is using a group of contains code words are perpendicular to the code group carry multiple signals. By adopting the same wavelength of spread spectrum sequence, spectrum resources utilization, combining with WDM high, can be greatly increased system capacity. Spectrum and signal itself by the detuning is irrelevant to a coded to finish. Say spectrum characteristic of the detuning yards codes or keys, sometimes called address.
Text:………………
郑吉龙通信073班
The introdocution of WDM Lightwave Systems
the basic principle of WDM Lightwave Systems.
main application
许瑞雪通信073班
Optical fiber Raman amplifiers principle of work and performance
Optical fiber Raman amplifiers working principle fiber Raman amplifiers working principle is based on quartz fiber the stimulated Raman scattering effects, in the form of performan