• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Medical & Commercial Uses of Fibre Optics.

Extracts from this document...


Medical & Commercial Uses of Fibre Optics. The use of fibre optics over copper cable offers many advantages. Firstly, they are capable of carrying signals with much less energy loss than copper cable, and with a much higher bandwidth. They have a much larger information-carrying capacity and are not subject to electrical interference. Optical fibres are much lighter and thinner than copper cable and hence less space is needed, making it easier for engineers to install. They offer another big advantage in sense of security - it is much more difficult to gain access to unauthorised data travelling through optical fibres. Running costs are also cheaper, due to the fact that fibre consumes far less electrical power than copper. Signals sent over long-distance fibre-optic cables need less amplification than do signals sent over copper cables of equal length. Many communication companies have installed large networks of fibre-optic cables. Underwater fibre-optic cables carry signals across the Atlantic and Pacific oceans. There are only a couple of minor disadvantages. One being that the price of optical fibres is more than the cost of copper cable on a per meter basis. ...read more.


Optical fibres transmit energy in the form of light pulses. The technology is similar to that of the coaxial cable, except that the optical fibres can handle tens of thousands of conversations simultaneously. Multimode fibre is commonly used as the "backbone" to carry signals between the hubs of Local Area Networks (LAN's) from where copper coaxial cable takes the data to the desktop. Fibre links to the desktop, however, are also common. Cable Televisions in the home tend to use optical fibre because of its very low power consumption. Closed circuit television(CCTV) security systems use optical fibre because of its inherent security, as well as its other advantages. Many advances have been made in recent years in the use of Optical Fibres as sensors. Gas concentration, chemical concentration, pressure, temperature, and rate of rotation can all be sensed using optical fibre. Optical fibres are also being used in a wide variety of sensing devices, ranging from thermometers to gyroscopes. The potential of their applications in this field is nearly unlimited, because the light sent through them is sensitive to many environmental changes, including pressure, sound waves, and strain, as well as heat and motion. ...read more.


The doctor diagnoses this problem by looking into the knee joint through the arthroscope. Then the cartilage is removed with other instruments through a second incision. The main advantage of arthroscopic surgery is that the operation can be performed through a small incision at the joint. As a result, a patient can sometimes have the surgery and leave the hospital the same day. Also, the patient experiences a minimum amount of discomfort, and healing time is much shorter than for other methods of surgery. The simplest application of optical fibers is the transmission of light to locations otherwise hard to reach, for example, the bore of a dentist's drill. Also, bundles of several thousand very thin fibers assembled precisely side by side and optically polished at their ends, can be used to transmit images. Each point of the image projected on one face of the bundle is reproduced at the other end of the bundle, reconstituting the image, which can be observed through a magnifier. Image transmission by optical fibres is widely used in medical instruments for viewing inside the human body and for laser surgery, in facsimile systems, in phototypesetting, in computer graphics, and in many other applications. Sarah Jane Gibbons 11Cri Fibre Optics ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Anatomy & Physiology section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Anatomy & Physiology essays

  1. Physiology Within Sport

    blood plasma increases even more to compensate for the increased amount of red blood cells, this causes the ratio of red blood cell volume to total blood volume decrease as this can reduce the thickness of the blood and the blood becomes more efficient flowing through veins and capillaries much quicker.

  2. A level Project, Personal Exercise Program on Netball.

    Hold for 30 seconds. Static Stretching. Chest Stretch Pectorals Place your hands behind you, right hand grabbing the left hand. Pull your shoulders back gently until you feel the stretch in the front of your chest. Hold for 30 seconds, then repeat-this time grabbing your right hand with the left hand.

  1. Skeletal Systems

    This bone is at an angle where we can speak and do all our normal daily activities with our jaw but is also well designed for its function which it primarily to help aid the digestive process. The spinal column (irregular bone)

  2. Muscle fibre types.

    There are many distinguishing characteristics associated with each muscle fibre type: A neurone forms the basic cellular unit of the nervous system. It is capable of carrying nerve impulses to muscles. A motor neurone controls large numbers of individual fibres, which together form a motor unit.

  1. Treatment to Joint Ventures Under The European Commission On Merger Regulations.

    All the requirements for the existence of a joint venture under the Merger regulation would be explained separately below. Acquisition of Joint Control. There are various principles for determining joint control set out in the commissions notice on the concept of concentration7, however, only one of these principles would be assessed in this discussion.

  2. Body in Motion

    When this fitness test was performed in the lab the class were in partners and the test was run in two groups having a person from each pair in the first test and the other in the second round of test.

  1. Information on the Physiology of Exercise

    When someone jumps the knees bend and then straighten quickly to shift the weight on the body fast to lift it off the ground. * Pivot Joint * Saddle Joint The base of the thumb this is the only saddle joint in the body.

  2. Muscular systems

    blood capillaries, generate ATP by the aerobic system, hence the term oxidative fibres, split ATP at a slow rate, slow contraction velocity, resistant to fatigue, found in large numbers in postural muscles, needed for aerobic activities like long distance running.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work