OGURA developed various device like connectors as a key part for optical transfer together with development of optical transferring technology, and has been providing them in fields of tele communication, industry and medical care.
Especially in tele communication area where domestic needs are nowadays on shrinking, OGURA has developed an optical connector for power laser to cope with industrial and medical needs.
Furthermore, in order to cope with diversified needs, OGURA has designed a unique collimator and customized it in accordance with usage.
By being sensitive to market needs, OGURA designs and produces various products like connectors and collimators according to market requirements.
Connector for optical fiber
Usage
This is an optical connector used for single mode optical fiber and optical fiber with large size diameter.
Features
As ferrule is processed by ourselves, an optical connector for unique optical fiber with large size diameter can be produced.
FC Connector
By using perforated ferrules with high precision for plugs, reliable connection of optical axis without any adjustment is possible.
Besides optical fiber withφ0.125mm for tele communication, the connector can be used to various optical fibers with large diameter.
A reliable property can be obtained by an appropriate design according to a diameter of optical fiber.
φ3mm code type
Core wire type
Type of SUS flexible tube with resin film
SMA Connector
This is a connector developed by AT&T in USA.
This is used for various types of optical fiber with large diameter besidesφ1mm diameter APF.
High reliable property can be expected by designing most optimally to diameter of optical fiber.
φ2mm jacket type
Core wire type
ST Connector
This is conformed to IEC standard.
Besides optical fiber withφ0.125mm for tele communication, various optical fibers with large diameter are provided.
High reliable property can be expected by designing most optimally to diameter of optical fiber.
φ3mm code type
Core wire type
SC Connector
This is a mostly used standard type.
This type of connector has higher performance than FC connector and realized higher usability and actual implementation with high density.
Applicable to various types of optical fibers with large diameter besides the fiber ofφ0.125mm for tele communication.
High reliable property can be expected by designing most optimally to diameter of optical fiber.
Optical connector for power laser
This is used for high power laser like YAG laser and fit to FC connector (JIS C 5670).
Fiber guide of ferrule has high heat resistance and heat-diffusing function, so that this connector is usable for high power laser with large diameter.
With quarterly split type of structure in the rear, the connector can be fixed without gluing to optical fiber. Accordingly, even in case of tip of optical fiber corrupted, the connector is reusable.
A gas inserting type which can put in coolant gas to cool output side is lined up besides types for core wire and code.
Features
- By having quarterly split structure connectable without glue is possible.
- Even tip of optical fiber corrupted, reuse is possible.
- Fiber guide of ferrule has high heat resistance property and heat-diffusing function.
For core wire
For code
For gas-inserting
Collimator
Collimator makes a ray emitted from optical fiber be a parallel ray with lenses.
When parallel ray is entered to output side of this product, entering the ray to the fiber by condensing the ray is possible.
Used lens are GRIN lens, convex lens, aspherical lens, etc. and OGURA is able to design the most optimal one according to requested specification.
Collimate linker
This is a fiber collimator which aspherical lens is put inside of optical connector and compatible to FC connector (JIS C 5670).
By having a precise parallel beam, high efficiency and high performance are expected.
Laser wavelength | 633nm | 1310nm,1550nm |
---|---|---|
Used fiber | Single mode(4/125) | Single mode(10/125) |
Connection loss | -*1 | 0.9dB and less*2 |
Reflection attenuation | -*1 | 40dB and more*3 |
Coupling loss | 2.5dB(60mm) and less | 2.5dB(60mm) and less*4 |
Permissible angle of light reception | 0.3mrad and less(coupling loss 2.5dB) | |
Diameter of emitted beam | 0.6mm and less | |
Expansion of beam | 3mrad(with full angle) | |
Using conditions | 5 to 60℃(60mm) |
*1: 633nm connection loss and reflection attenuation are not regulated.
*2,*3,*4: Evaluated with 1.31µmLD beam.
[About beam diameter]
- The diameter based on maximum beam strength13.5%(1/e2;natural logarithme=2.718・・・).
- Emission beam shows Gaussian distribution and makes circle.
Special Collimator
This is a special collimator to condense or expand beam by using aspherical lens or GRIN lens.
This is used not only for medical use, but also actually in various areas like analyzing instrument of particle diameter in solvent and measurement instrument of fine particles under special conditions.
Please contact OGURA. We are ready to design and produce unique collimators in accordance with usage and requirements.
Laser probe
Laser treatment device is widely used in medical practices like in surgery and dentistry. Sapphire with high heat resistance is contributing to long life of laser probe where energy is most concentrated.