Vertical-cavity Surface-emitting Lasers (VCSELs): Technologies and Global Markets

Between these mirrors is an active region known as a quantum well, which is so narrow that quantum confinement occurs.
These lasers, which were previously called edge-emitting diodes, emit infrared or coherent energy parallel to the surface between semiconductor lasers; VCSELs emit their infrared or coherent energy perpendicular to the surface between these semiconductor layers.
Due to this fact, the surface area covered by VCSELs is smaller, resulting in less time lag to transfer the data in optical devices.
Other applications, such as gesture recognition and industrial sensing, will spur the demand for VCSELs in the future.

LONDON, August 7, 2018 /PRNewswire/ -- Report Scope
This report covers the VCSEL market in terms of:
- Applications: Optical fiber data transmission, analog broadband signal transmission absorption spectroscopy (TDLAS), laser printers, computer mice, biological tissue analysis, chip scale atomic clocks (CSACs) and others.

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- Materials: gallium nitride (GaN), gallium arsenide (GaAs), indium phosphide (InP) and others (AlGaAs, InGaAsN, etc.).
- Colors: Red, green, blue-violet, infrared and other colors.
- Geography: North America consists of the U.S., Canada and Mexico; Europe is segmented into France, Italy, Germany, the U.K., Russia and the Commonwealth of Independent States (CIS); the Asia-Pacific (APAC) region is segmented into China, Japan, Taiwan, South Korea and others; the rest of the world (RoW) covers the Latin America, Middle East and Africa.
- Industry and competitive analysis.
- Patent analysis.
- Company profiles.

Report Includes:
- 50 data tables and 15 additional tables
- An overview of the global markets for vertical-cavity surface-emitting lasers (VCSELs) and related technologies
- Analyses of global market trends, with data from 2016 and 2017, and projections of compound annual growth rates (CAGRs) through 2022
- Market breakdown by application, materials, and region
- Relevant patent analyses
- Company profiles of major players in the market, including Coherent Inc., Finisar Corp., IQE Plc, Lumentum Holdings Inc., Newport Corp., Philips Photonics, and Schneider Electric SA

Summary
Vertical-cavity surface-emitting lasers (VCSELs) are specialized laser diodes that revolutionized the fiber optic communications industry by increasing data speed and improving efficiency.VCSELs are semiconductor lasers or laser diodes with monolithic laser resonators, where the light emitted leaves the device in a perpendicular direction to the surface of the chip.

The cavity or resonator is achieved with two semiconductor Bragg mirrors. Between these mirrors is an active region known as a quantum well, which is so narrow that quantum confinement occurs.

These lasers, which were previously called edge-emitting diodes, emit infrared or coherent energy parallel to the surface between semiconductor lasers; VCSELs emit their infrared or coherent energy perpendicular to the surface between these semiconductor layers. Due to this fact, the surface area covered by VCSELs is smaller, resulting in less time lag to transfer the data in optical devices.

Another factor that makes VCSELs superior to their competitors is in their production process.While edge emitters cannot be tested until the end of the production process, VCSELs can be tested at any time in the production process.

This saves time for manufacturers and leads to a higher-quality product in the end.

Other advantages of VCSELs over edge-emitting diodes include lower manufacturing costs, higher speeds, more energy efficiency and their being easier to test.The intensity at which VCSELs emit a narrow, more cylindrical beam is much faster than other emitting diodes.

Due to this, energy loss is minimal, and a higher rate of transfer can be attained.

At present, VCSELs are used across a wide spectrum, ranging from 600 nanometers (nm) to 1,400 nm.However, the major challenge today is the development of a high-powered VCSEL device that emits a wavelength of 1,550 nm.

In the overall electromagnetic spectrum, these wavelengths respond to the infrared region. Materials used to manufacture VCSELs include gallium nitride (AlGaAs), gallium arsenide (GaAs), indium phosphide (InP) and indium gallium arsenide nitride (InGaAsN).

VCSELs are expected to be a prominent source in the optical communications market in the coming years. Other applications, such as gesture recognition and industrial sensing, will spur the demand for VCSELs in the future.

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