NKT Photonics SuperK CONNECT, Product Manual

Page: 14 / 40

Features
14
Table 1 Fiber delivery models - single mode cut off
FD fiber
characteristics
A variety of fiber options are available and must be specified when ordering an
FDS. See
Table 2 on page 35 for a list of fibers and their specifications. Selection
of fibers is based on your light requirements and delivery connection. Refer to
section
“Selecting standard or photonic crystal fiber delivery” on page 31 for
further information on selecting fibers.
Features
Thumbscrews
Within the CONNECT, are two spring mounted mirrors that pivot on their X and Y
axes using two pairs of thumbscrews. Each mirror is mounted against two
thumbscrews set apart by 90 degrees. To prevent corrosion with the CONNECT
body, the thumbscrews are composed of bronze and feature knurled knobs.
When a thumbscrew is turned, the mirror pivots on one of the two axes. In this
way, a light beam entering the CONNECT is steered by turning the thumbscrews
until the coupling efficiency of the light entering the fiber is optimized – see the
chapter
“Optical Alignment” on page 21 on how to align the beam.
Alignment tool
An alignment tool is included with the Fiber Delivery System. It can help
accurately align the CONNECT emission to center it with the fiber input coupler.
The tool is a steel shaft, with a center tube that has a pinhole pupil near the
beveled end of the shaft. When the tool is inserted in the output port of the
CONNECT, the emission beam is steered so that it passes through the alignment tool
pupil. The effect of this, is to center the beam path towards the FD input coupler and
its fiber facet– see
“Aligning the FDS” on page 21 .
Fiber type i
i. For further fiber specifications, see
Table 2 .
Exit connector
Standard
ii
fiber
ii. Standard Single Mode (SM) step index
fiber
FC/APC
Standard fiber FC/PC
Standard PM fiber FC/APC
Standard PM fiber FC/PC
Standard fiber Collimator
Standard PM fiber Collimator
LMA
iii
fiber
iii. Large Mode Area fiber (Photonic
Crystal fiber)
FC/APC
LMA fiber FC/PC
LMA PM fiber FC/APC
LMA PM fiber FC/PC
LMA fiber Collimator
LMA PM fiber Collimator
2