Home › Forums › GENERAL › dispersion compensation › Reply To: dispersion compensation
![Profile Photo](https://optiwave.com/wp-content/uploads/avatars/9194/184744466fe5b3ec69fa9ac4996d9bde-bpfull.jpg)
Hi
Amongst the various techniques proposed in the literature, the ones that appear to hold immediate promise for dispersion compensation and management could be broadly classified as: dispersion compensating fibers (DCF), chirped fiber bragg gratings (FBG) and high-order mode (HOM) fiber. The idea of using dispersion compensation fiber for dispersion compensation was proposed in 1980 but, until after the invention of optical amplifiers, DCF began to be widespread attention and study. As the products of DCF are more mature, stable, not easily affected by temperature, wide bandwidth, DCF has become a most suitable method of dispersion compensation. There is positive second-order and third-order dispersion value in SMF, while the DCF dispersion value is negative. So by inserting a DCF, the average dispersion is close to zero.
The use of dispersion compensating fibers is an efficient way to upgrade installed links of standard single mode fiber (SMF). Conventional dispersion compensating fibers have a high negative dispersion -70 to -90 ps/nm.km and can be used to compensate the positive dispersion of
transmission fiber in C-band. According to the relative position of DCF and single mode fiber, post-compensation, pre-compensation and
symmetrical/mix compensation, is proposed. DCF precompensation scheme achieve dispersion compensation by placing the DCF before a conventional single mode fiber or after the optical transmitter. Post-compensation scheme achieve dispersion compensation by placing the DCF after the single mode fiber. Symmetrical/mix compensation scheme is consist .
Categories
- All
-
Knowledge
Contains a detailed Q&A knowledge base. -
General
All non-technical questions. -
System
Optical system design and analysis. -
Instrument
Communicate and control different kinds of instruments. -
SPICE
Opto-electronic circuit design. -
FDTD
Finite-Difference Time-Domain simulation. -
BPM
Beam Propagation Method analysis and design. -
Grating
Fiber optic grating simulation. -
Fiber
Optical fiber design and characterization. -
Exchange
Users can exchange design files.
(Matlab, C++, etc.)