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The laser diode technology is similar to LED as semiconductors deliver coherent waves. These waves have the same frequency and motion on an infrared medium. And as they use p-n junctions to produce waves, they are also known as injection laser diodes.  Now that we know what a Laser Diode is, let’s look at its various types.  Types of Laser Diodes There are mainly four types of Laser Diodes, namely,  Double Heterostructure Laser Diode:  In this laser diode, a heterostructure is formed by placing layers of low bandgap material on either side of high bandgap layers, hence known as a double heterostructure laser diode. In this type, the heterostructure is stuffed between the p-type and the n-type. They are mainly used for optical amplification as they activate a particular area. Quantum Well Laser Diode:  These diodes are responsible for improved efficiency. Let’s understand how. There is a thin layer of the quantum well in the middle of the diode, this layer conver...

 Rapid and reliable communication technologies are becoming increasingly necessary. Since the world is rapidly transitioning to digital platforms, there is an increased demand for communication tools and solutions. This has resulted in the development of communication systems that are quick, sophisticated, and reliable. However, the development of these systems is heavily reliant on their components, such as DFB lasers . In this article, we will look at the characteristics of distributed lasers, also known as DFB lasers, and why they have been a popular choice for telecommunication systems in recent years. Characteristics of Distributed Feedback Laser : Some of the primary characteristics of DFB laser that make it a favored choice for fiber communication systems are listed below. 1. For a long time, Fabry Perot (FP) lasers were used as a light source for fiber communication. However, these lasers were effective for short-distance transmission only. Because when it comes to long-d...

Medical technology has advanced substantially over the past few years. It has not only evolved but has also become more affordable over time. Swept source OCT , which stands for Optical Coherence Tomography, is one such medical technology. Swept source OCT, which was introduced in 2012, has grown in popularity due to its deeper penetration strength . Ultimately, it has had a favorable impact on and made a significant contribution to the studies of the vitreous body. In this blog, we will look at the benefits and drawbacks of swept source OCT to better understand why this diagnostic technique has grown so popular in such a short period of time. But first, let’s look at how swept source OCT (SS-OCT) differs from spectral-domain OCT (SD-OCT). Differences Between SD-OCT & SS-OCT A. To detect choroidal neovascularization (CNV), both SD-OCT and swept source OCT are used. Moreover, both SD-OCT and SS-OCT employ Fourier domain detection techniques . However, spectral domain OCT equipment ...