Optical fiber attenuators may employ several principles when used in fiber optic communications. One common principle is the gap loss principle. Attenuators using this principle are sensitive to the modal distribution ahead of the attenuator. Thus, they should be utilized at or near the transmitting end. If not, the attenuators could establish less loss than intended. This problem is avoided by attenuators that use absorptive or reflective principles.

There are three basic types of optical attenuator: the fixed attenuator, step-wise attenuator and the continuously variable attenuator. Fixed attenuators reduce light signals by specific amount with negligible or no reflection. Because signal reflection is not an issue, fixed attenuators are known for more accurate data transmission. Important elements associated with fixed attenuators include the flatness over a specified frequency, range, voltage standing wave ratio (VSWR), amount of attenuation, average and peak power-handling capability, performance over a specific temperature, size and height. Fixed attenuators are also often used to enhance interstage matching in an electronic circuit. Thorlab’s fixed attenuators are available from 5 dB to 25 dB. Mini-Circuits’ fixed attenuators are packaged in rugged plug-in and connector models. They are available in both 50- and 76-ohm models ranging from 1to 40 dB spanning DC to 1500 MHz.

In variable optical attenuators (VOA), resistors are replaced with solid state devices such as the metal semiconductor field effect transistor (MESFETs) and PIN diodes. VOA attenuates light signal or beam in a controlled manner, thus producing an output optical beam with different attenuated intensity. The attenuator adjusts the power ratio between the light beam coming from the device and the light beam entering the device over a changeable rate. VOA is usually used in fiber optic communication systems to regulate optical power levels in order to prevent damages in optical receivers which may be due to irregular or fluctuating power levels. The price of commercial VOA varies depending on the manufacturing technology used. Some of manufacturers of VOA are Timbercon and Arcoptix.

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Gibson Technical Services was originally founded in 1990. The goal was then to provide design and consulting services and assistance for cable system operators and equipment manufacturers. Twenty years later, GTS still works hard to provide its valued clientele the best services possible, with a scope of expertise ranging from Fiber Optic Services to towers and civil construction, without forgetting an ensemble of professional data services; Voice-over IP, network consulting, digital video surveillance, network security, structured cabling and network analysing.

The Fiber Optic Services offered by GTS allows clients to be assisted at all moments through the process and get the support they need before, during and after the installation of the entire network and system. Gibson Technical Services offers cable route planning, optical fiber splice planning, optical coupler planning, fiber network audits, optical fiber fusion splicing, OTDR testing, optical loss measurements and fiber management system installation as part of their comprehensive range of fiber optic-related services. Clients are guided through the process and offered all the support and assistance necessary to the success of the operations.

Since Gibson Technical Services’ reputation was built and still stands on the quality of the services as well as the satisfaction of its numerous clients, it goes without a saying that the team behind GTS is highly skilled and trained and provides clients with an unprecedented expertise and competence. To offer the best Fiber Optic Services, GTS is proud to work with Mike McCraken, Chief Technology Officer. McCraken has a tremendous amount of experience related to network planning and fiber optic systems and brings more than 23 years of knowledge to Gibson Technical Services. McCraken is joined by two other notable officers, Jon Martin and Robert Moore [Chief Operating Officer and Chief Financial Officer].

For all Fiber Optic needs and wants, Gibson Technical Services is the name to remember. With their experience and devotion to their clients, GTS surely has made a reputation of its own as being a reliable and understanding company who works for the benefit of the clients first and foremost. GTS services many areas, with current operations in Georgia, Alabama, Mississippi, Louisiana, Florida, Ohio, Pennsylvania, Maryland, Nevada, North Carolina and Puerto Rico, amongst other locations..
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