Vertical cavity surface emitting laser (VCSEL)

A vertical cavity surface emitting laser (VCSEL) is a type of semiconductor laser diode with a vertically oriented cavity and an active region that emits light perpendicular to the top surface of the device. VCSELs are used in a variety of applications including data communications, optical networking, laser printing, and barcode scanning.

What is VCSEL technology? VCSEL technology is a type of optical fiber communication that uses a vertical-cavity surface-emitting laser (VCSEL) to transmit data. VCSELs are small, efficient lasers that can be used to create high-speed optical links. VCSEL technology is used in a variety of applications, including data communications, sensing, and lighting.

What is the advantage of VCSEL over an edge emitting laser? The advantage of VCSEL over an edge emitting laser is its ability to emit light vertically from the top of the device. This allows for a more efficient coupling of the light into optical fibers, which is important for data transmission applications. VCSELs also have a smaller footprint than edge emitting lasers, which is important for applications where space is limited. How are VCSEL made? VCSELs are vertical-cavity surface-emitting lasers. They are made by sandwiching an active layer between two mirrors. The active layer is where the laser action occurs. The mirrors reflect the light back and forth through the active layer, amplifying it until it reaches the threshold for lasing. What type of networks usually uses VCSEL? VCSELs are used in a variety of networks, including fiber optic, Ethernet, and USB. Is VCSEL coherent? VCSELs are typically used in short-range data communications applications such as Ethernet and Fibre Channel, where data rates are relatively low and coherence is not required.