Raman Amplifiers

100 nm bandwidth flat-gain Raman amplifier – Average power model

Optical System - Figure 8 Counter-propagating pump

This lesson shows the performance of the Average power model in analysis of the 100 nm bandwidth Raman amplifier with multiwavelength backward pump. The parameters considered are close to these used in the experiment of [1]. The same experimental situation has been modeled by means of Average power model in [2]. As is well known…

Flattening the gain of broadband Raman amplifier with multipump configuration

Optical System - Figure 4 Optimized pump power spectrum

In this lesson, we will use the gain flattening type of optimization to optimize the pump powers for flattening the gain of a Raman amplifier. Fiber Raman amplifiers are recently getting much more attention in WDM systems due to their greatly extended bandwidth and distributed amplification with the installed fiber as gain medium [1]. It…

Optimizing the pump power and frequencies of Raman amplifiers for gain flatness

Optical System - Figure 5 Output power spectrum after the optimization

In this example, we show that the Gain Flattening type of optimization can be used to design multi-wavelength pumped Raman amplifiers with a flattened gain. Given amplifier specifications such as signal level, required gain profile, and number of allowed pump channels, the optimization procedure can generate a combination of pump wavelengths and input powers that…

Raman Amplifier – Dynamic Model

Optical System - Figure 1 Project Layout for analysis of the Raman gain

This lesson demonstrates generating the transients based on add-drops in signals in a Raman amplifier. In this example, we simulate a counter-pumped Raman amplifier for a small number of signals. Then the results are compared with the ones found in the literature. The project consists of a simple model as shown in Figure 1. Figure…