Product description:
The Fiber Bragg Gratings with model OEFBG-100 from O/E Land Inc. are manufactured on an optical fiber, where part of the
fiber original coating is initially removed (fiber is partially stripped). The length of this stripped window depends on the FBG
specification, which are defined by the customer, and based on the feasibility.
The finished FBG fiber contains two originally coated-fiber pigtails, and a stripped window in the middle, where the actual FBG
is located. Therefore, the FBG fibers are fragile, especially in the center, at the un-coated part, and they should be handled with
attention and care. The stripped part should not be bent, stretched, heated, touched by hand, as any of such interference can
easily damage the fiber, and also alter the initial FBG specifications.
The bare fiber-FBGs from O/E Land Inc. are usually delivered to the customer in a specially designed plastic box. The box is
made from rigid thick plastic and prevents damaging of the FBG fiber during the shipment.
For further physical protection of the FBG, as well as for additional enhancement of the FBG parameters and stability, several
other packages were developed, and are available upon request, including*:
Re-coating of the stripped FBG window
Protective tubing
Standard package
Athermal package
Thermo-sensitive package
High-power package
Other specialized and custom packages
- Some limitations apply.
The re-coating package can be combined with some other types of packaging, like the Protective tubing, and the Standard
package. Also available is termination of the fiber pigtails with connectors.
Protective tubing:
To protect the full length of the FBG fiber, a protective tubing can be added. The standard tubing diameter is 900 μm, but
bigger sizes and different materials tubing is also available. The choice of the size and the material depends on the fiber
type/size, the application, and on the feasibility.
January 2024 All specifications are subject to change without notice. 3
Features Standard
furcation tube
Teflon
tube
Metal
tube
Type Small Big Small Armored Rigid
Material PVC PVC PTFE (Teflon) Steel Steel
Tube diameter (OD) 0.9 mm 3.0 mm 0.9 mm
3.0 mm
3 mm
6 mm custom
Operating temperatures (max) < 85 °C < 250 °C < 300 °C
Typical applications Fiber protection
in normal environment
High
temperature
High temperature,
harsh environment - Some limitations apply.
The protective tubing package can be combined with other types of packaging, such as the Re-coating, and the Standard and
Athermal package (on the fiber pigtails only). Also available is termination of the fiber pigtails with connectors. Some restrictions
apply.
Standard package:
For even better protection of the FBG, a rigid and hard stainless steel tube can be added on top of the FBG window area. In
this case, our Standard package should be used. Usually combined with a 900 μm protective tubing along the whole length of the
FBG fiber, this package provides ultimate protection of the FBG area, when frequent manipulation of the fiber is required.
Additional advantage is the small diameter circular shape of the package, which allows quick and easy mounting and fixing.
January 2024 All specifications are subject to change without notice. 4
The Standard package comes in 6 different sizes, depending on the FBG length. The FBG fiber is first protected with tubing
(jacket), and then with a steel tube. For the bigger packages (medium size and above), strain-relief rubber boots are added on
the two side of the tube, to prevent the fiber from breaking. For these sizes, 3 mm protective tubing can be also added.
Also available is termination of the fiber pigtails with connectors. Some restrictions apply.
Athermal package:
Athermal package is needed when the sensitivity of the FBG center wavelength to the ambient temperature needs to be
minimized. Our Athermal package can decrease this sensitivity more than 20 times, and it can provide stable FBG center
wavelength in the temperature range of 0-70°C. The center wavelength shift is as low as 0.5 pm/°C.
The Athermal package also comes in a rigid and hard stainless steel. Usually, it is combined with a 900 μm protective tubing
along the whole length of the FBG fiber, and strain-relief rubber boots. Additional advantage is the circular shape of the package,
which allows quick and easy mounting and fixing.
January 2024 All specifications are subject to change without notice. 5
The Athermal package comes in 4 different sizes, depending on the FBG length. As an option, this package can be delivered
without any strain-relief boots on the side, so the overall length will be smaller, but the fiber still be fragile at the two ends of the
package. This is only helpful when the mounting space is limited.
The Athermal package of all sizes can be combined with 3 mm protective tubing and strain-relief rubber boots. Also available
is termination of the fiber pigtails with connectors. Some restrictions apply.
Thermo-sensitive package:
The Thermo-sensitive package is useful when the sensitivity of the FBG center wavelength to the ambient temperature needs
to be increased. Our Thermo-sensitive package can increase this sensitivity more than 2 times, and it can provide FBG center
wavelength dependency of more than 20 pm/°C in the temperature range of 23-60°C.
The Thermo-sensitive package comes in a shape of metal plate, made of aluminum. This package is used with bare FBG fiber,
or with 900 um protective tubing. Mounting holes are available for quick and easy fixing.
High-power package:
When the FBG is used in high-power applications, for example in the fiber lasers, the FBG should be able to withstand the
heat, generated by light passing through it. Our High-power package not only can do that, but it can also help to dissipate this
heat, and thus prevent the FBG fiber from damaging in the FBG area.
The High-power package comes in a shape of metal plate, usually made of copper or aluminum. As these materials has high
thermo-conductive efficiency, the heat generated in the fiber will be easily dissipate in the body of the package, and not be
concentrated in the fiber cladding. Additionally, the package itself can be mounted on a heatsink, on which some fans can be
additionally attached, especially for very high-power applications. This package is used with bare FBG fiber only.
January 2024 All specifications are subject to change without notice. 6
For quick and easy mounting of the package, some mounting screw holes are available.
The High-power package comes in 3 different sizes, depending on the FBG length. As an option, this package can be also
delivered mounted on a heatsink for better heat management (optional; subject to availability).
Other specialized and custom packages:
O/E Land Inc. has the capacity for producing some specialized and custom-made FBG packages. These packages will be based
on the customer particular requirements, such as FBG specification, application, environmental factors, performance, etc.
Please contact us for more information or to discuss your specific inquiry.January 2024 All specifications are subject to change without notice. 1
[OEFBG-100]
Fiber Bragg Grating
Packages
Product description:
The Fiber Bragg Gratings with model OEFBG-100 from O/E Land Inc. are manufactured on an optical fiber, where part of the
fiber original coating is initially removed (fiber is partially stripped). The length of this stripped window depends on the FBG
specification, which are defined by the customer, and based on the feasibility.
The finished FBG fiber contains two originally coated-fiber pigtails, and a stripped window in the middle, where the actual FBG
is located. Therefore, the FBG fibers are fragile, especially in the center, at the un-coated part, and they should be handled with
attention and care. The stripped part should not be bent, stretched, heated, touched by hand, as any of such interference can
easily damage the fiber, and also alter the initial FBG specifications.
The bare fiber-FBGs from O/E Land Inc. are usually delivered to the customer in a specially designed plastic box. The box is
made from rigid thick plastic and prevents damaging of the FBG fiber during the shipment.
For further physical protection of the FBG, as well as for additional enhancement of the FBG parameters and stability, several
other packages were developed, and are available upon request, including*:
Re-coating of the stripped FBG window
Protective tubing
Standard package
Athermal package
Thermo-sensitive package
High-power package
Other specialized and custom packages - Termination with connectors available. Some limitations apply.
January 2024 All specifications are subject to change without notice. 2
Re-coating of the stripped FBG window:
The coating of the already stripped window of the fiber during the FBG fabrication can be restored by re-coating of this area.
This will better protect the fiber from physical damages, and improve the handling of the FBG fiber, as there will be no stripped
part anymore.
We offer two general types of re-coating: with acrylate epoxy, and with polyamide material. The choice of the material depends
on the original coating of the FBG fiber, but in some cases, it can be applied vice-versa. The acrylate type of re-coating can be used
not only on standard 250 um-coating size fibers, but it is also available for bigger fiber diameters.
Features Acrylate Polyamide
Type Regular Low-index Regular
Material index of refraction (cured) 1.55 1.37 N/A
Optical power handling < 500 mW < 5 W < 500 mW
Diameter of the recoated area 280; 400; 610 μm ~ 160 μm
For fiber types Originally acrylate-coated Originally polyamide-coated
For fiber coating diameter 250, 390, 550 μm 160 μm
Operating temperatures (max) < 85 °C < 300 °C - Some limitations apply.
The re-coating package can be combined with some other types of packaging, like the Protective tubing, and the Standard
package. Also available is termination of the fiber pigtails with connectors.
Protective tubing:
To protect the full length of the FBG fiber, a protective tubing can be added. The standard tubing diameter is 900 μm, but
bigger sizes and different materials tubing is also available. The choice of the size and the material depends on the fiber
type/size, the application, and on the feasibility.
January 2024 All specifications are subject to change without notice. 3
Features Standard
furcation tube
Teflon
tube
Metal
tube
Type Small Big Small Armored Rigid
Material PVC PVC PTFE (Teflon) Steel Steel
Tube diameter (OD) 0.9 mm 3.0 mm 0.9 mm
3.0 mm
3 mm
6 mm custom
Operating temperatures (max) < 85 °C < 250 °C < 300 °C
Typical applications Fiber protection
in normal environment
High
temperature
High temperature,
harsh environment - Some limitations apply.
The protective tubing package can be combined with other types of packaging, such as the Re-coating, and the Standard and
Athermal package (on the fiber pigtails only). Also available is termination of the fiber pigtails with connectors. Some restrictions
apply.
Standard package:
For even better protection of the FBG, a rigid and hard stainless steel tube can be added on top of the FBG window area. In
this case, our Standard package should be used. Usually combined with a 900 μm protective tubing along the whole length of the
FBG fiber, this package provides ultimate protection of the FBG area, when frequent manipulation of the fiber is required.
Additional advantage is the small diameter circular shape of the package, which allows quick and easy mounting and fixing.
January 2024 All specifications are subject to change without notice. 4
The Standard package comes in 6 different sizes, depending on the FBG length. The FBG fiber is first protected with tubing
(jacket), and then with a steel tube. For the bigger packages (medium size and above), strain-relief rubber boots are added on
the two side of the tube, to prevent the fiber from breaking. For these sizes, 3 mm protective tubing can be also added.
Also available is termination of the fiber pigtails with connectors. Some restrictions apply.
Athermal package:
Athermal package is needed when the sensitivity of the FBG center wavelength to the ambient temperature needs to be
minimized. Our Athermal package can decrease this sensitivity more than 20 times, and it can provide stable FBG center
wavelength in the temperature range of 0-70°C. The center wavelength shift is as low as 0.5 pm/°C.
The Athermal package also comes in a rigid and hard stainless steel. Usually, it is combined with a 900 μm protective tubing
along the whole length of the FBG fiber, and strain-relief rubber boots. Additional advantage is the circular shape of the package,
which allows quick and easy mounting and fixing.
January 2024 All specifications are subject to change without notice. 5
The Athermal package comes in 4 different sizes, depending on the FBG length. As an option, this package can be delivered
without any strain-relief boots on the side, so the overall length will be smaller, but the fiber still be fragile at the two ends of the
package. This is only helpful when the mounting space is limited.
The Athermal package of all sizes can be combined with 3 mm protective tubing and strain-relief rubber boots. Also available
is termination of the fiber pigtails with connectors. Some restrictions apply.
Thermo-sensitive package:
The Thermo-sensitive package is useful when the sensitivity of the FBG center wavelength to the ambient temperature needs
to be increased. Our Thermo-sensitive package can increase this sensitivity more than 2 times, and it can provide FBG center
wavelength dependency of more than 20 pm/°C in the temperature range of 23-60°C.
The Thermo-sensitive package comes in a shape of metal plate, made of aluminum. This package is used with bare FBG fiber,
or with 900 um protective tubing. Mounting holes are available for quick and easy fixing.
High-power package:
When the FBG is used in high-power applications, for example in the fiber lasers, the FBG should be able to withstand the
heat, generated by light passing through it. Our High-power package not only can do that, but it can also help to dissipate this
heat, and thus prevent the FBG fiber from damaging in the FBG area.
The High-power package comes in a shape of metal plate, usually made of copper or aluminum. As these materials has high
thermo-conductive efficiency, the heat generated in the fiber will be easily dissipate in the body of the package, and not be
concentrated in the fiber cladding. Additionally, the package itself can be mounted on a heatsink, on which some fans can be
additionally attached, especially for very high-power applications. This package is used with bare FBG fiber only.
January 2024 All specifications are subject to change without notice. 6
For quick and easy mounting of the package, some mounting screw holes are available.
The High-power package comes in 3 different sizes, depending on the FBG length. As an option, this package can be also
delivered mounted on a heatsink for better heat management (optional; subject to availability).
Other specialized and custom packages:
O/E Land Inc. has the capacity for producing some specialized and custom-made FBG packages. These packages will be based
on the customer particular requirements, such as FBG specification, application, environmental factors, performance, etc.
Please contact us for more information or to discuss your specific inquiry.
Re-coating
of the stripped FBG window:
The coating of the already stripped window of the fiber during the FBG
fabrication can be restored by re-coating of this area.
This will better protect the fiber from physical damages, and improve the
handling of the FBG fiber, as there will be no stripped
part anymore.
We offer two general types of re-coating: with acrylate epoxy, and with
polyamide material. The choice of the material depends
on the original coating of the FBG fiber, but in some cases, it can be applied
vice-versa. The acrylate type of re-coating can be used
not only on standard 250 um-coating size fibers, but it is also available for
bigger fiber diameters.
|
Features |
Acrylate |
|
Polyamode |
|
Type |
Regular |
Low-index |
Regular |
|
Index of reflection |
1.55 |
1.37 |
– |
|
Power Handling |
<500mW |
<5W |
<500mW |
|
Diameter of recoating |
280, 400, 610 μm |
~160 μm |
|
|
Operating Diameter |
<85°C |
<300°C |
|