In an era increasingly defined by the rapid exchange of data, Free Space Optics (FSO) is becoming the solution for transmitting information quickly and wirelessly in various areas.
The innovative communication system of Free Space Optics utilizes the propagation of light through the air to transmit high-speed data.
This article will discuss the world of Free Space Optics, from the definition, the mechanism of how it works, its function in providing connectivity in difficult areas, and its technical compliance and operational readiness.
What is Free Space Optics?
Free Space Optics (FSO) is a communication system that uses light propagation in free space through air or free space as a transmission medium to transmit data.
Unlike communications that use fiber cable, optical fiber, or optical transmission lines, FSO is able to transmit data wirelessly. Data transmitted by FSO also has a transmission speed that is faster than traditional wireless technology.
FSO can support various types of communication, such as simultaneous transmission of Ethernet data, voice, and video, especially in environments where physical cabling is not feasible.
How It Works?
Free Space Optics (FSO) works by transmitting data through laser light directly through the air or free space between two points wirelessly. Here is how FSO works in detail:
- Infrared lasers transmit light: The infrared laser, as the light source, sends the modulated data towards the receiver.
- Transmission through air: The laser light signal propagates through the air in free space towards the receiver.
- The receiver captures the signal: With a telescopic lens or mirror as an antenna, the receiver captures the light signal and converts it back to an electrical signal.
- The device receives the data: The detected electrical signals are processed to be provided to the receiving device.
The Functions
Free Space Optics (FSO) has the main function of a wireless communication system in sending data through the air or free space. Here are some of the main functions of FSO:
1. Transmitting data
The main function of FSO is to transmit data. This technology is capable of transmitting data wirelessly in the form of laser light from one point to another by utilizing air or free space.
2. Provides access in difficult areas
With its wireless connectivity, FSO can access difficult areas in areas where fiber optic cables are impractical to install. This becomes a wireless solution for connectivity that can be utilized between buildings or over long distances.
3. Security
What is particularly interesting about FSO is its ability to also function as a security system. Light signals in this technology are limited to the direct path, making it more secure against eavesdropping and interception.
4. Reduce cable clutter
Another function of FSO that should not be underestimated is its ability to reduce cable clutter. By providing wireless connections, especially over short distances, this technology can help reduce the mess of fiber optic cabling.
5. As a mobile operator backhaul
Another function of FSO is to serve as a mobile operator backhaul. This technology can be used to provide backhaul connections for both legacy and new networks to mobile operators.
Technical Compliance and Operational Readiness
The deployment of Free Space Optics (FSO) equipment in commercial or corporate environments requires strict compliance. This relates to technical safety standards and regulations in effect in a given country.
The goal is to ensure operational readiness and public safety. Therefore, FSO devices require product compliance, known as type approval certification.
In Indonesia, before FSO devices can be marketed and used, they must obtain certification from the Directorate General of Digital Infrastructure (DJID). The Indonesian DJID certification process involves testing for Radio Frequency (RF), Electromagnetic Compatibility (EMC), and safety.
Products that have obtained DJID Indonesia certification are guaranteed to be safe and do not cause interference that affects other electronic devices. As a result, these devices can be legally marketed and used in Indonesia.
