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Vertical-cavity Surface-emitting Lasers, commonly known as VCSEL , have a wide range of applications. The laser can be fabricated in various ways, including on the surface or within arrays. The key distinction that distinguishes the VCSEL from other lasers is that it emits light from the top rather than the edges, as other lasers do. This guarantees that the output power is optimum. Moreover, this is often in the shape of a circular beam of light which is highly compatible with modern optical instruments. In this article, we will look at the applications of VCSEL in various industries such as communication, sensors, and computing. Along with these three primary industries, this laser is also used in the manufacturing process of smart vehicles and smartphones. If you are excited to know more about Vertical Cavity Surface Emitting Lasers then you can check our blog An Introduction to VCSEL . VCSEL Applications : A. VCSEL For Smartphones: VCSEL arrays and their low power consumption ar...

Discharge lamps, dye lasers, and optical parametric oscillators were the only valuable sources for spectroscopy in the early 1990s or mid-1980s. However, as optical technologies evolve and their applications broaden, we have been introduced to new light sources and lasers. The broadband light source is one such type of light source that has gained popularity in optical spectroscopy. In this blog post, we will look at what a broadband light source is, how it works, and how it opens up new opportunities for spectroscopists. What Exactly Is A Broadband Light Source? A broadband light source, also known as a superluminescent source, is a superluminescent diode with a wavelength of emission of 700 nm and a bandwidth of 1700 nm that is perfect for OEM integration. Moreover, it is often used for multi-wavelength tests for measuring wavelength-division-multiplexing components. This implies it has a wide range of applications in the medical, telecommunications, sensing, and measurement industr...

If you are associated with the light source or laser industry in any way– you must be well aware of the superluminescent diode light sources and their diverse applications. You may also know why superluminescent LEDs are the first choice for imaging applications.  But even in case you are new to this industry and know nothing about it– Never mind! This article discussed what superluminescent diodes are, their salient characteristics, and why it is the preferred choice for imaging applications. But before let us first understand what a superluminescent light-emitting diode is and how it is different from or related to laser diodes (LDs) and light-emitting diodes (LEDs). What is a Superluminescent Diode? Wikipedia defines the superluminescent light-emitting diode or SLD or SLED is an edge-emitting semiconductor light source based on superluminescence. To see the Application of Superluminescent diode, Check this blog: Application of Superluminescent diode

Swept source optical coherence tomography, also known as swept source OCT or SS-OCT, is an ophthalmic imaging technology used to diagnose and cure various diseases related to the eyes. SS in SS-OCT stands for swept source- a type of laser that is used in the device.  Swept source OCT was first introduced in the year 2012. However, owing to its advantages and usability over other imaging technologies such as Spectral-Domain Optical Coherence Tomography (SD-OCT) and Time Domain Optical Coherence Tomography (TD-OCT), it becomes a superior retinal and choroidal imaging technology in ophthalmology and other clinical fields in a very short span. SS-OCT offers many advantages over other imaging technologies. Its low-coherence nature and zero delays time enable it to produce high resolution, single focus, and 3D images within a very short period. Without a doubt, swept source OCT has positively impacted and exceptionally contributed to the research of the vitreous humor, also known as vit...

The 21st century witnessed a significant revolution in imaging techniques. The continuous innovation in this area has introduced us to many advanced technologies in the last two decades, which include TD-OCT (Time-Domain Optical Coherence Tomography), SD-OCT (Spectral-Domain Optical Coherence Tomography, and SS-OCT where SS stands for Swept Source – a type of laser incorporated in the device. The Swept Source OCT technology was first introduced to the clinical world around 2012, which had overshadowed its preceding technologies, namely Time-Domain OCT and Spectral-Domain OCT. The swept-source OCT has helped retina specialists and other surgeons to overcome the limitation of previous imaging technologies. To see the difference between Swept Source OCT & Spectral-Domain OCT and know the advantage of Swept Source OCT, just check our blog: Advantage Of Swept Source OCT .

From ancient times to the present day, mankind has continuously invented new technologies & tools for their comfort and progression. Be it fire, be it a wheel, be it electricity, be it a computer, be it internet, be it a mobile or the latest LiDAR laser technology. All of these inventions have made a significant contribution to mankind’s evolution and, at the same time, have become the foundation stone for many other inventions as well. In this article, we have discussed how LiDAR laser is transforming the way we see the world.  There are countless applications of LiDAR (Light Detection and Ranging) laser at present. To see the top 4 applications of Lidar laser, Check our blog: Applications of Light Detection and Ranging (LiDAR) Laser

Several types of lasers have been invented in the last few decades to tackle the rising need for communication. One such laser is called the DFB laser. DFB stands for Distributed Feedback. It is a type of narrow-linewidth laser diode or an optical fibre laser where the grating generally happens along the cavity, and not just at the two ends.  The structure of the diode builds a one-dimensional interference grating, also known as Bragg scattering. Being single-frequency laser diodes, distributed feedback laser provides a narrow linewidth with good side mode suppression.  Unlike other conventional laser diodes, distributed feedback lasers do not use two mirrors to develop the optical cavity. Instead, in this narrow linewidth laser diode, grating acts as the wavelength selective element for at least one of the mirrors. It provides feedback, which ultimately reflects light into the cavity to form the resonator. Primarily, there are two types of DFB lasers   – Fiber lasers and...

The Superluminescent Diode (SLD) is a Semiconductor device to emit low-coherence light of a broad spectrum like LED, But high brightness like LD, Laser Diode. The Light Emitted in a narrow active layer similar to LD can be efficiently incident to the fiber. SLD is usually used as an incoherent light source for optical sensors like OCT and Optical fiber gyroscopes. The mechanism of SLD emission is the same as the semiconductor laser (LD) and light-emitting diode (LED). Emission occurs by moving forward current to a P-N junction. When a power supply is connected to the player positive and the N-layer negative, Electrons enter from the N-side and holes from the p-side. The Principles of SLD Operations: The Unique property of Superluminescent Diodes is the mixture of Laser-Diodes like output power and brightness with the board LED like an optical spectrum. This kind of combination is allowed by high optical gain in semiconductor laser materials and its wide optical spectrum. To see differ...

The Superluminescent Diode is a semiconductor device to beam low-coherence light of a broad spectrum like LED, but High brightness like LD (Laser Diode). Light emitted in a narrow active layer related to LD can be efficiently event to the fiber. SLD is usually used as an incoherent light source for optical sensors like OCT and optical Fiber Gyroscopes. Superluminescent Emitting Diodes are semiconductor devices that emit broadband light through the electrical current shot. A Superluminescent light emitting diode is equal to a laser diode, based on an electrically induced Pn-Junction, When influenced in the front direction, becomes optically active and generates amplified spontaneous emission over a wide range of wavelengths. Check our original blog to know some more details of Superluminescent Diode.

A semiconductor optical amplifiers work similarly as a laser. The structure is almost the same as two particularly produced pieces of semiconductor material on top of each other, with another material in between them forming the “active layer”. An electrical current is set running through the pattern in order to excite electrons, which can then fall back to the non-excited area event and give out photons. A semiconductor optical amplifier is an optical amplifier based on a semiconductor gain medium. It is essentially the same as a laser diode where the end mirrors have been displaced with anti-reflection coatings, a turned waveguide can be used to further reduce the end reflectivities. Check our Semiconductor Optical Amplifiers blog to know How to choose semiconductor optical amplifiers?