Power Solution (PS)
Diamond uses different expanded beam methods for Power Solution (PS) depending on the final use of the assembly.
The main expanded beam types can be defined as follows: spliced GRIN lenses, ball lenses and spliced glass rod-, or endcap.
PS Collimated (Contact)
The method of splicing a GRIN (gradient index) lens to expand a beam has been used by Diamond for more than ten years to improve power handling. A GRIN lens is spliced at the end of a SM fiber and its length is polished to result in a collimation of the SM beam. Two such connectors when mated achieve an exceptionally low IL.
PM-PS Collimated Polarization Maintaining (Contact)
Polarization plays an important role in the industrial photonics market
and when coupled with medium-high power application, creates
a market of high criticity. Sensors and communication systems
have been designed using Polarization Maintaining or Polarizing
fibers. Special connectors are required for such application, because
their connection must be made with a certain orientation.
Only connectors with an orientation key are capable of properly
terminating these fibers.
PSm Power Solution Multimode (Contact)
No standards for large MM connectors has been defined with high
power application in mind. The quality of the contact is critical and
standard SM fiber optical interface is not sufficient.
Diamond has established a new Optical Interface, the PSm, to fill
this void and help end-users to dispose of reliable connectors for
The optical interface used 100% concentricity measurement control
and optical geometry measurements. A special visual inspection
completes the Optical Interface definition.
PSf Free Space (Diverging)
A glass rod can be spliced at the end of a SM fiber. This allows the beam to be expanded before it exits the glass, diminishing the power density at the glass-air interface. This technique is used for high power application, at the injection or at the output in order to minimize the risk of burns at the interface.
A ferrule is placed behind a ball lens which is glued to a housing. Depending
on the concentricity, the expanded beam exits the lens at a particular angle.
To minimize the exit beam angle, Diamond uses the ACA process.
PSl Lensed (Focused)
Diamond offers focused beam on a customer requirement base. Using Diamond mature PS technology (based on GRIN lens), a focused beam optimized for free space light transmission, can be designed and manufactured upon request.
This technology is especially used for measurements (interferometric) and for sensing.
PSi Free Standing
The fiber-end free from epoxy glue allows a proper thermal dissipation
in the region of maximum power density.
A proprietary design mode-stripper can be integrated to obtain
laser power confinement in the fiber core. The amount of power
stripped out from the cladding is a function of the laser Beam
Product Parameter (BPP) and of the receiving fiber core diameter
and numerical aperture (NA).
PSc Collimator Systems
Collimators are for use in a wide variety of optical systems.
These modules are designed to collimate or focus light exiting
an optical fiber to a desired beam diameter or spot size a specific
distance away. Collimators are used with laser diodes, photodiodes,
acoustic-optic modulators and other fiber optic devices where
a specific output is needed.