>Fiber
Optical Loss
Though it is theoretically said that optical loss of
FF is much lower than silica fiber, actually it's not easy to manufacture
highly purified low loss fluoride. Over the long years of studying,
FiberLabs Inc. (FL) has established its own technique to manufacture
FF less than 50 dB/km loss.
Shown in Chart 2, our FF performs practical loss in broad wavelength
range. We, FL, have been continuing our R&D activities to improve
our own manufacturing technique to achieve further low loss value
by removing impurities and other methods. |
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>Emission of rare-earth element doped Fiber
Excellent emission characteristic is one of advantages of FF, when
rare earth element doped into. Chart 3 shows emission efficiency
of rare-earth element doped fiber. Silica fiber gives out emission
but limited to the range only in near infrared rays, as we marked
•.
Besides, FF covers the wider range of infrared rays
and visible rays. Also, emission of both 1.3 um and 1.4 um wavelength
band is available by using none but FF. Both wavelength band are
popular and major in optic fiber communications field.
Based on this emission characteristic, FL has been providing our
own products, such as ASE Light Sources, Optical Amplifier, Laser,
and other optical devices. To achieve better performance of emission
characteristic, we, FL, have been developing fiber composite materials
and the best design of fiber parameters.
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