Semiconductor optical amplifiers

Abstract

This research paper showed the information about Semiconductors optical amplifiers and how Semiconductors optical amplifiers are serving today. There is also discussion about powering, need, amplification of Semiconductors optical amplifiers. In the end, there is a conclusion which shows that risks associated with Semiconductors optical amplifiers are less than the benefits. There are also solutions to minimize the risks when careful considerations are made.

Contents

Introduction4

Need of Semiconductors optical amplifiers4

Research Questions5

Semiconductor optical amplifiers at Saturation5

Feasibility5

Powering6

Physical Limits6

Semiconductor optical amplifiers as power boosters6

Characteristics8

Advantages of Semiconductors optical amplifiers9

Linear and non- linear filtering schemes10

Drawback11

Solutions11

SOAs VS. EDFA12

Conclusion13

References14

Semiconductor optical amplifiers

Introduction

Technology is advancing every day. Each day bring new ideas, revolutions and inventions. Today, no house and organization, is without computer. Information Technology is playing a vital role in reshaping lives. Semiconductor devices which can work like a semiconductor and can convert optical signal into an electrical signal, then amplify the signal and return the signal to an optical signal. There are disadvantages of Semiconductors optical amplifiers such as costs, large quantity is required for long routes, noise is also created at each stage of conversion especially analog signals. There are also restrictions in bandwidth wavelengths and other types of optical signals. These disadvantages can be overcome when amplifying the signal into the optical domain.

Need of Semiconductors optical amplifiers

Semiconductors optical amplifiers may always categorized by its features which include gain which is the ratio of output power to the input power and, expressed as dB. The other features may be gain bandwidth, gain efficiency, gain saturation and noise.

Semiconductors optical amplifiers are also the diodes which are considered as the laser diodes and, have fiber at both ends. There are two types of Semiconductors optical amplifiers such as travelling wave amplifier (TWA) and Fabry-Perot Amplifier (FPA). The purpose of these amplifiers is to amplify any optical signal which comes from fiber and also produce the amplified version of the signal from the second amplifier.

Research Questions

What are the criteria when Semiconductor optical amplifiers work near saturation?

Is there any availability of the physical limits when there is high power saturation?

Do we consider Semiconductor optical amplifiers as a mature technology?

What is the power Semiconductor optical amplifiers achieve?

There is always distortion when Semiconductor optical amplifiers work near saturation and chirp increases.

Semiconductor optical amplifiers at Saturation

The data rate found at saturation area is 10 GB/s.

Wavelengths are found in the range of 1480 to 1600nm range.

The average power is found to be 1 dB or below 1 dB.

Semiconductor optical amplifiers using a pin receiver.

Feasibility

Semiconductor optical amplifiers use the same lnP technology which is used in 1550 nm DFB lasers, EA modulators, 1480 nm EDFA pump lasers. The packing and fabrications of all these devices are feasible at all times.

Powering

Semiconductor optical amplifiers operates at the power of +12 dBm output power which is dependent on 400 mA current with potential drop of 1.8 V.

Physical Limits

The output power of Semiconductor optical amplifiers is restricted because of the heating which is due to the injection of carriers into ...