NKT Photonics SuperK SPLIT User manual

800-616-01
SuperK
SPLIT
Product Guide Revision 1.2 10-2023

PRODUCT GUIDE
This guide includes information for the following NKT Photonics products:
SuperK SPLIT
Broadband filter with split VIS/NIR and NIR/IR optical outputs A301-100-000
CAUTION: Do not open the device chassis. All chassis are equipped with war-
ranty labels (see Figure 40) on their covers. The warranty is void if a device is
opened.
Manufactured by:
NKT Photonics A/S
Blokken 84, Birkerød-3460 Denmark
The information in this publication is subject to change without notice.
All company and product names mentioned within are either trademarks or registered trademarks of
NKT Photonics.
Specifications are listed as metric units. Imperial units listed are conversions.
Copyright 2023 NKT Photonics A/S. All rights reserved.
Author: W-10456

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Guide Overview
This product guide is intended to provide functional, operational and
installation information for the SuperK SPLIT.
WARNING: Do not operate a laser with the SPLIT before first reading and under-
standing all warnings, cautions and handling information stated within the doc-
ument:
SuperK Split Safety, Handling and Regulatory Information
The paper copy of this guide is included with your accessory; it can also be
downloaded from:
https://www.nktphotonics.com/lasers-fibers/support/product-manuals/
Documentation A USB memory stick is included. It contains documentation for all NKT
Photonics products including this accessory.
Terminology The guide may refer to the SuperK SPLIT as the SPLIT, device or accessory.
Target Audience This guide is for technical personnel involved in the selection, planning and
deployment of lasers and photonic equipment in laboratory and industrial
settings. The guide assumes a reasonable knowledge level of lasers, photonic
principles and electrical interface connectivity.
Chapters Inside This guide includes the following chapters:
• Chapter I “Description” — Describes the accessory including its general
operational principles, electrical and optical interfaces, status LEDs, and
safety labeling.
• Chapter 2 “Installation” — Includes information and procedures on how to
correctly install the accessory chassis.
• Specifications — Appendices include specifications, servicing information,
and support contact details.
Added information
and Safety Notices
Lasers with their accessories are highly dangerous devices that can cause
serious injury and property damage. This guide use the following symbols to
either highlight important safety information or provide further information in
relation to a specific topic.

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NOTE: Highlights additional information related to the associated topic and/or
provides links or the name of the NKTP guides describing the additional infor-
mation.
CAUTION: Alerts you to a potential hazard that could cause loss of data, or dam-
age the system or equipment.
WARNING: The laser safety warning alerts you to potential serious injury that
may be caused when using a laser with the accessory.
Revision This section records the document revision details.
Release date Revision number and changes
2020-October 1.0 Updated from earlier manual.
2021-January 1.1 Updated support contact details in appendix B.
2021-April 1.0 Revision rolled back to 1.0 for internal system reasons.
2022-February 1.1 Updates include minor grammar corrections and
improvements in language clarity. Some figures have
also been modified for clarity.
2023-October 1.2 Updated the style of the document.

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CONTENTS
Guide Overview ............................................................................................................... 3
Documentation ................................................................................................................. 3
Terminology ..................................................................................................................... 3
TABLES ....................................................................................................................................... 7
FIGURES ..................................................................................................................................... 9
PROCEDURES .......................................................................................................................... 11
1 Description..................................................................................................................... 13
Output options ................................................................................................................ 13
Additional filtering ...........................................................................................................13
Features ............................................................................................................................... 14
Output ............................................................................................................................ 14
Interlock .......................................................................................................................... 14
Shutters .......................................................................................................................... 14
Interfaces ............................................................................................................................. 15
Top panel ....................................................................................................................... 15
Optical apertures ............................................................................................................ 16
Electrical Interfaces ........................................................................................................ 17
Status LEDs ......................................................................................................................... 18
Chassis labels ...................................................................................................................... 20
2 Installation ..................................................................................................................... 23
Installation process ........................................................................................................ 23
General .......................................................................................................................... 23
Optical Connections ............................................................................................................. 24
Inserting the collimator ................................................................................................... 24
Electrical Connections......................................................................................................... 26
External bus ...................................................................................................................26
Adding additional accessories ........................................................................................ 28
A Specifications ................................................................................................................ 29
B Service and Support Information................................................................................... 31

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Servicing .............................................................................................................................. 31
Opening the chassis ....................................................................................................... 31
WARRANTY VOID IF REMOVED label ......................................................................... 31
Support Contact Details ....................................................................................................... 31
Online Support Web-page .............................................................................................. 31
Shipping Address ........................................................................................................... 32

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TABLES
Table 1: Status LEDs .................................................................................................................. 19
Table 2: Chassis labels............................................................................................................... 20
Table 3: Optical ....................................................................................................................... 29
Table 4: Interfaces ...................................................................................................................... 29
Table 5: Mechanical dimensions................................................................................................. 29
Table 6: Operating and storage environment ............................................................................. 29
Table 7: Safety and regulatory compliances .............................................................................. 29

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FIGURES
Figure 1: SuperK SPLIT general view......................................................................................... 13
Figure 2: SuperK SPLIT functional view ..................................................................................... 13
Figure 3: Output aperture shutters..............................................................................................14
Figure 4: Top panel..................................................................................................................... 15
Figure 5: Optical Interfaces......................................................................................................... 16
Figure 6: Electrical Interfaces and optical input .......................................................................... 17
Figure 7: Status LEDs................................................................................................................. 19
Figure 8: Side panel manufacturing label (generic) .................................................................... 20
Figure 9: Top panel labels .......................................................................................................... 21
Figure 10: Partially inserting the collimator ................................................................................. 24
Figure 11: Collimator alignment key and slot.............................................................................. 25
Figure 12: Collimator lock screw ................................................................................................ 26
Figure 13: Connecting the External bus - SuperK laser.............................................................. 27
Figure 14: Connecting the External bus and bus defeater - SPLIT ............................................ 27
Figure 15: Bus defeater .............................................................................................................. 27
Figure 16: Mechanical dimensions ............................................................................................. 30
Figure 17: Warranty seal............................................................................................................. 31
white

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PROCEDURES
Procedure 1: Inserting a SuperK output collimator .................................................................... 24

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1 Description
A SuperK SPLIT is a passive filter accessory for SuperK lasers. It divides the
super continuum spectral emission from a SuperK laser into two separate
wavelength ranges emitted from separate optical output ports. Each output
emits a broadband subset of the original super continuum beam source.
Figure 1 SuperK SPLIT general view
The diagram in Figure 2 shows two output channels each consisting of a
broadband emission subset of the original super continuum wavelengths. The
optical output of one channel is in the visible (VIS) and near-infrared (NIR) range
and the other channel’s output is a broadband subset in the NIR and infrared
(IR) range.
Figure 2 SuperK SPLIT functional view
NOTE: See Table 3 on page 29 for SuperK SPLIT model specifications.
Output options The SuperK SPLIT filter block may be combined with a SuperK CONNECT and
SuperK Fiber Delivery (FD) to form a Fiber Delivery System (FDS).
Additional filtering An External Filter Holder add-on can be fitted before any fiber coupling. Using
the holder any standard 1-inch filter can be placed in the beam path.
Optical input
Optical outputs
Super continuum input
VIS/NIR super
continuum output
VIS/NIR filter NIR/IR filter
NIR/IR super
continuum output
SuperK SPLIT
SuperK series laser

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Features
Output Emission from both SuperK SPLIT output ports are free space beams. To
deliver the two bands of supercontinuum spectrum, a Fiber Deliver System
(FDS) consisting of dual SuperK Connect and SuperK Fiber Delivery (FD)
accessories can be fitted to the SPLIT.
Interlock The SuperK SPLIT is equipped with a safety interlock. The interlock inter-
connects with a SuperK laser’s interlock system. The interlock system is setup
to disable emissions immediately when the interlock circuit is broken, such as
an interconnected safety door switch. Refer to “Electrical Connections” on
page 26.
Shutters As a safety feature, each optical output of the SuperK SPLIT is equipped with a
mechanical shutter. When the shutter is closed, it blocks all optical emission.
The shutters are manually operated by turning the shutter knob between the
Open and Closed positions as shown in Figure 3.
Figure 3
Output aperture shutters
CAUTION: When the laser outputs are not in use, NKTP recommends to CLOSE
the shutters.
Shutter set to emission
blocked position
Shutter set to emission
unblocked position
2

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Interfaces
Interfaces
Top panel The top panel shown in Figure 4 includes the following:
• Input and output aperture indicators
• Output shutter control knobs
• Collimator release button with locking screw
• Mounting hole access
Figure 4 Top panel
1 Mounting holes 5 Collimator locking screw
2 NIR/IR output shutter 6 SuperK output collimator - inserted
3 VIS/NIR output shutter 7 Electrical interfaces and LEDsi
i. See “Electrical Interfaces” on page 17
4 Collimator release button
1
2
3
4
7
5
6

Interfaces
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Mounting holes
The two mounting holes (1) are designed to fasten the SuperK SPLIT to either
metric or imperial optical tables that have screw holes spaced at either a 25
mm or a 1” pitch.
NIR/IR output shutter
This shutter can be set to block or unblock the NIR/IR emission output aperture.
Turn the shutter to the “Closed” position to block emission. Turn the shutter to
the “NIR/IR” position to unblock emission from the aperture.
VIS/NIR output shutter
This shutter can be set to block or unblock the VIS/NIR filtered output emission
from the aperture. Set the shutter to the “Closed” position to block emission.
Set the shutter to the “VIS/NIR” position to unblock emission from the aperture.
Collimator release button and locking screw
SuperK laser outputs are provided with a barrel shaped collimator. When the
barrel is inserted into an SPLIT optical input receptacle, it is automatically
retained by a locking mechanism that securely holds the barrel in place. To
release the collimator from the input receptacle, press the collimator Release
button (4).
NOTE: You can lock the collimator barrel in the optical input by tightening the
collimator locking screw (5).
Optical apertures Optical apertures are located on the side panels of the SPLIT as shown in
Figure 5 and described in the following.
Figure 5 Optical Interfaces
2
3
1
1. Optical input aperture 3. NIR/IR optical output aperture – with
Connect mounted
2. VIS/NIR optical output aperture – with
Connect mounted

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Interfaces
Optical input aperture
The Optical input aperture is a receptacle that houses the output collimator of a
SuperK laser. The laser’s output collimator is inserted into the aperture until it
clicks and locks in place. To remove the collimator, press the release button. The
laser’s collimator barrel can be secured by tightening the lock screw.
The optical input includes an interlock switch. If a SuperK collimator is not
inserted in the input receptacle, the switch detects this and prevents emission
(refer to Figure 6).
VIS/NIR optical output aperture
This is a free space output aperture for the filtered visible emission.
NIR/IR optical output aperture
This is a free space output aperture for the filtered IR emission.
NOTE: All output apertures include 4 screw holes for mounting, for example, a fi-
ber coupler such as an FDS consisting of a SuperK CONNECT and FD.
Electrical Interfaces The electrical interfaces are located on the same side panel where the optical
input aperture is located. Figure 6 shows the panel, all electrical interfaces are
located along the bottom right side of the panel.
Figure 6 Electrical Interfaces and optical input
External bus port
The External bus port electrically connects the SPLIT to a SuperK laser. SuperK
lasers connect to accessories using the NKTP External bus protocol. The bus
carries data communications, DC power and the interlock signal from the laser to
any accessories connected on the bus.
1 Optical input aperture (collimator
receptacle)
4Emission LEDi
i. See “Status LEDs” on page 18
2 Bus through output port 5 Power and Interlock LEDsi
3 External bus input port
15324

Status LEDs
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Optical input aperture
See “Optical input aperture” on page 17.
Bus through port
Connects additional accessories to the External bus in a daisy chain
configuration. A bus defeater is connected to this port if no other accessories
are used with the SuperK laser. When no bus defeater is placed at the end of
the External bus daisy chain, the interlock loop circuit is left open and emission
disabled at the SuperK laser.
Status LEDs
The SPLIT includes three status LEDs as described in Table 1. The LEDs are
located on a side panel next to the External bus ports and shown in Figure 7.
The emission LED is lit ON RED when the connected SuperK laser’s emission is
enabled. When ON RED, laser emission is present at the primary and auxiliary
optical output ports.
WARNING: If any of the SPLIT aperture shutters are closed, emission is blocked.
The position of the shutters does not affect the status of the emission LED, only
the emission status of the connected SuperK laser.
Figure 7 Status LEDs
Power
Interlock
Emission

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Status LEDs
Table 1 Status LEDs
WARNING: DONOT OPERATE the SuperK laser until you are familiar with the con-
trols and have taken all precautions necessary as described in the laser’s safety
handling and regulatory information document.
LED Name Condition Description
Emission ON RED Emission enabledi
The SuperK laser system emission is ON and class 4
emission is present at the primary and auxiliary optical
output ports.
The position of the mechanical shutters at each output
port does not change the status of the emission LED.
i. Warning: SuperK emissions are rated Class 4.
OFF Emission disabled
Power ON GREEN The SPLIT is powered ON; the External bus 12V DC power
is OK.
ON RED DC supply voltage is low.
FLASHING GREEN/
AMBER
Indicates data transmission on the External bus.
OFF The SPLIT is OFF; no DC power connected.
Interlock ON GREEN Interlock safety circuit is closed; laser emission permitted.
ON REDii
ii. Check the SuperK laser for interlock error information.
Interlock safety circuit is open; laser emission is disabled.

Status LEDs
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Chassis labels
The SuperK SPLIT chassis includes multiple labels that indicate hazards and
safety and product information. The labels are located on the panels as
described in Table 2 with the panels shown in Figure 8 and Figure 9.
Table 2 Chassis labels
Figure 8 Side panel manufacturing label (generic)
Label Panel Description
Class 4 Laser
Classification
Top Safety information indicating the laser
emission radiation class and
precautions to take when the laser is
operating.
Laser Aperture Top Safety information alert indicating the
location of the aperture where laser
radiation is emitted from the device.
Manufacturing Side Manufacturing information including
address, part and serial number,
version, and date manufactured.
Laser
Radiation
Warning
Top Safety information alert indicating this
area of the device is near a source of
dangerous laser emissions.