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In an optical fiber communications system, several transmission bands have been defined and standardized, from the original O-band to the U/XL-band. Optical amplifiers are also employed at various other points in a network for example, within an optical switching node to recompense for losses in the switch fabric. A Semiconductor Optical Amplifier which is popularly known as SOA is typically a laser diode LD with no feedback from its input and output ports and hence is also referred to as a Traveling-Wave Amplifier (TWA). Semiconductor Optical Amplifiers, SOA has shown to be able and multifunctional devices that are key building blocks for optical networks. If you want to know the features of O-band Amplifier, Check our original blog .

VCSELs (Vertical-Cavity Surface-Emitting Lasers) were invented in the mid-1980s. However, in a relatively short period of time, VCSELs established a reputation as a superior technology for short-distance applications such as fiber channel, Ethernet, and intra-systems communications. Over the next few years, VCSELs displaced edge-emitter lasers as the technology of choice for short-range datacom and local area networks. VESSEL’s success can be primarily due to its lower manufacturing costs and improved dependability compared to edge emitters. What Is VCSEL? A vertical-cavity surface-emitting laser diode (VCSEL) is a semiconductor-based laser diode that produces light or an optical beam vertically from its top surface. This type has greater advantages than Edge Emitting Lasers (EEL), which emit light from the side, or Light Emitting Diodes (LED), which emit light from the sides and top. Advantages of VCSEL Laser VCSELS, like many lasers, are used in optical communications. Vertical-Cavit...

 As the world becomes more technologically evolved, more and more devices are invented on a daily basis to make human life more comfortable and easy. One such significant advancement we saw was in the light and laser industry. There are many different types of lasers available to fulfil the varying demands of various sectors. This blog will provide an overview of one such laser, known as the FP Laser . In brief, we’ll learn what it is, how it works, and what applications it has. Let’s get started. What Is FP Laser? The FP laser, also known as the Fabry-Perot interferometer , makes use of the multiple beam interference phenomena, which occurs when light passes through a cavity enclosed by two reflective parallel surfaces. When light strikes one of the surfaces, a portion of it is transmitted out, and the remainder is reflected back. The net result is that a single beam is split into numerous beams that interfere with each other. Multiple reflections between two closely spaced partia...

Many advances have been made in the field of science and technology which have made a huge impact on how the world functions. One such advancement is the development of swept source , which has revolutionized the field of medical ophthalmology. They were introduced in 2012 for optical coherence tomography (OCT) which has helped ophthalmologists all over the world to help diagnose and treat optical problems like glaucoma with relative ease.Swept source offer deep penetration, high resolution, faster acquisition time and long coherence length, thus making it the ideal light source for OCT. Why swept source is an important development? A type of laser, the development of swept source has been connected with OCT. their unique abilities make it easier to visualize retinal structures like choroid and vitreous despite the presence of pre-retinal hemorrhages. The use of swept source optical coherence tomography (SS-OCT) has made immense contributions to the field of ophthalmology, especially ...

 Optical Coherence Tomography (OCT) is a novel clinical technology that is widely used in ophthalmology and other medical fields. The technology provides two and three dimensional, cross-sectional, micron-scale images of biological tissues within optical scattering media. This technology has been used extensively for imaging tissue microstructure in various medical fields ranging from ophthalmology to gastroenterology. OCT primarily used two types of light sources for the imaging process- a) Femtosecond Lasers or b) Superluminescent Diodes (SLD). However, the high prices and difficult operation of Femtosecond lasers have throttled its widespread adoption in medical applications. At the same time, it has ultimately paved the way for superluminescent diodes for optical coherence tomography in the clinical industry. Let us first understand what superluminescent diode is and what OCT is in brief. What Superluminescent Diode is? Wikipedia defined the superluminescent diode as “A superlu...

LiDAR laser applications have grown dramatically in the past few years. Despite being invented in 1960, its acceptability and applications began to grow after 1990. As a result, this technology is now used in almost every industry, including agriculture, forestry, military, mining, transportation, etc. In this blog, we will learn about LiDAR laser and how it differs from the more well-known RADAR technology. What Is LiDAR Laser? LiDAR is an abbreviation for Light Detection And Ranging. As the name implies, this technique measures the distance between objects by using light waves or a light source. To put it another way, it is used in range-finding applications. The LiDAR lasers were first used to calculate the distance between the Earth and the Moon in 1960. However, over the last five decades, the uses of LiDAR lasers have grown substantially. Moreover, the functioning of LiDAR technology is very similar to that of RADAR technology. However, there are numerous distinctions between th...