Top Advantages of VCSEL

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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.

VCSEL

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-Cavity Surface-Emitting Lasers are also more commonly used in long-wavelength communication technologies, such as those used in metro systems, storage networks, and fiber-to-home communications, than in other communication technologies.

The numerous benefits provided by VCSEL technology can be summarised as follows:

1. Wavelength Uniformity & Spectral Width: Growth technology has advanced to the point where VCSEL 3″ wafers are created with a cavity wavelength standard deviation of less than 2nm. This enables the manufacturing of VCSEL 2-D arrays with little wavelength variation between the array’s elements.

2. High-Temperature Operation: Since VCSEL devices can function at temperatures up to 80 degrees Celsius, the cooling system becomes very tiny, tough, and portable with this approach.

3. Wavelength stability: Since the lasing wavelength of a VCSEL is fixed by the short Fabry-Perot cavity, it is relatively stable. Unlike edge emitters, VCSELs can only function in one longitudinal mode.

To know more about VCSEL and see more advantages, check out our blog: Top 6 Advantages of VCSEL

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