Page 1 of 1
F
OR
ADDITIONAL
INFORMATION
ON
THIS
OR
OTHER
PRODUCTS
AND
THEIR
AVAILABILITY
,
PLEASE
CONTACT
F
IBER
O
PTIC
C
ENTER
, I
NC
.
Fiber Optic Center, Inc., 23 Centre Street, New Bedford, MA, 02740-6322, USA Website: www.focenter.com
e-mail: sales@focenter.com, Toll Free: (800) IS-FIBER, (800) 473-4237, Tel: (508) 992-6464, Fax: (508) 991-8876
Tapered Optical Waveguides -
FO-T Series
FO-T Series products incorporate a fiberoptic taper which is a dielectric waveguide with
a radii that varies with length. As high power laser input devices, they have an input core
diameter that is larger than the output core diameter. Used in the opposite direction, they
can be output devices to lower the emerging NA, or up taper on a standard fiberoptic to
increase the accepting NA, useful in Laser Diode and sensing applications.
Sizes: FO-T Series products are available in input to output core ratios of 10:1 or 1:10
depending on whether it is an up or down taper.
Lengths: Down tapers are made separately, and fused to the desired fiber, if a fiber
pigtail is desired, while up tapers are usually fabricated directly onto the fiber selected.
In either case, any length unit can be provided.
Materials: Fused Silica or Borosilicate Glass
Lower surface energy density
reduces surface damage.
Reduces dielectric breakdown of the
air
Folded focal point reduces the
potential of self-focusing.
Allows for simpler input optics and
easier alignment
Increase or decrease NA
Optimum shape for high pressure
optical feedthroughs
Fused silica taper assemblies can
achieve 2 x 109 Watts/cm2 at the
output end of a 600 µm core fiber at
1060 nm using 15 ns pulses.
Features and Benefits
Laser ignition
Laser calibration systems
LIDAR and other low divergence, low
energy, detection systems
Diffuse signal collection in sensing
systems such as bio-fluorescence
High pressure optical feedthroughs
Telescopes, space research, optical
instruments
Applications
FO-T Series products need to be specified with regard to their sizes, lengths, fiber
type and end terminations.
The input size is the core diameter of the taper input.
The output size is the core diameter of the taper output. If the taper is part of, or to
be pigtailed to a fiberoptic, the output size will be the fiber core size.
The fiber type is the same as the material type for the taper and can be fused silica
(UV-VIS, VIS-NIR, Other) or Borosilicate Glass.
The end terminations will be a 3/8" or 1/4" diameter ferrule for any standard fiberoptic
connectors.
NOTE: FO-T Series products can be custom fabricated for a variety of environmental or
dimensional requirements.
ORDERING INFORMATION
