The Norland Fiber Visualizer
is a unique instrument which simplifies installation and
testing of fiber optic networks. This compact unit uses
a 0.5 mW helium neon laser, with an ultra-precision optical
adapter, to focus high intensity visible light into the
core of a fiber optic connector. As the light travels
down the fiber, a visible red glow is emitted anywhere
discontinuity occurs. The Visualizer imitates on the visible
level, what normally occurs in the invisible infrared
spectrum,thereby allowing the end user to actually see
any problems in the system.
As an installation tool
the Visualizer is the ideal monitor for splicing fibers
using a technique called Visual Splice Optimization (VSO).
This technique can be used on the Norland UVC Optical
Splice or any other mechanical splice which has a clear
or translucent area where the fibers meet. With the Visualizer
attached to the system,the splice will glow bright red
when the cleaved fibers are inserted. As the fibers contact
and the cores align, the red glow disappears because the
light is transferred to the core of the opposite fiber.
This sudden change from bright to dark provides instant
visual feedback at the splice point making it obvious
when light loss has been minimized. If a glow is still
present, VSO allows the splice to be optimized by adjusting
As a test instrument, the
Fiber Visualizer is useful for trouble-shooting typical
fiber problems such as locating breaks and microbends
in the fiber, tracing fiber for identification and locating
bad splices or connectors. The advantage is in its simplicity.
The feedback is an easy to understand, visual signal which
occurs exactly at the problem site.
The Visualizer is unique
because it uses a safe, low powered laser to generate
high optical output. The ultraprecision optical adapter
focuses up to 90% of the laser beam into the fiber core
and allows the light to be seen at a break more than a
kilometer down the fiber. Even though the Visualizer uses
a visible laser source, the power output is limited to
less than 1.0 milliwatts. This categorizes it as a Class
II laser which means it is safe for normal operation with
the stipulation that you do not stare into the beam.
This unit comes complete
with a 12V AC adapter in a rugged carrying case with connector
adapter for one of the following connector types: SMA,
AT&T ST®. Biconic or D4 NTT-FC/PC. Also available
is an optional battery pack for field use.
®ST is a registered
trademark of AT&T
||9" x 2"
||-40°C to 100°C
||9 to 100% (without