Optical Trap Kit
19590-D04-V15; Apr 12, 2012
Page 12
www.thorlabs.com
Part 6.
Setup and Alignment in Detail
Unless otherwise noted, all of the parts mentioned in this section have been included either
preassembled into one of the five segments or as a separate item as described in
Section 3
.
Please
observe proper laser safety procedures. IR laser beams are particularly dangerous because they
cannot be seen. Always wear the appropriate type of laser glasses (not included) when working
with laser beams. To protect the diode, make sure you have an ESD guard product, like the WS01
(not included).
Though the system ships as five segments, the following steps provide a detailed, step by step set of
instructions on how to assemble the optical trapping kit OTKB from individual parts. So, only parts of
these detailed descriptions will have to be followed as indicated in
Section 3.
However, this gives you
some detail of the assembly so that you can modify according to your application needs. The system can
also be ordered assembled and pre-aligned on a breadboard. Please contact our technical support
department (
) regarding this option.
1)
Select the correct laser type on the laser diode mount (LM14S2). When used with the fiber laser
that is part of the kit you will have to put the „Type 1‟ PCB card into the LM14S2 mount, please
refer to the LM14S2 manual for details.
2)
Mount the laser diode in the butterfly controller mount and connect to the laser diode controllers
LDC210C and TED200C. The temperature sensor type on the TED200C should be “TH
20kOhm” and the Laser Diode polarity should be set to „AG Ground‟. Set the current limit to
700mA. Please check individual manuals for controller, mount and diode for additional
information on how to set the temperature of the mount and drive current.
6.1 Collimating Trap beam from FiberPort
1)
Connect a Cage Plate Mounting Base (CPB1) to the FiberPort Cage Adapter (CP08FP) and
attach the FiberPort (PAF-7-X-B) to the adapter. You may want to look at the setup arrangement
to know where to mount components on optical table. Secure this assembly to an optical
breadboard or table (not included) using two CL6 mounting cleats (if the mounting slots on the
CPB1 align with the hole pattern on the optical table they may be used instead of the CL6
cleats).
2)
Temporarily attach an iris (SM1D12D) to the CP08FP FiberPort cage Adapter.
3)
Temporarily attach two ER6 (or longer) cage rods to the CP08FP (use the top two cage rod
holes).
4)
Create an eye safe environment prior to turning on the laser and collimating it. In addition, use a
low power beam for this alignment step. Turn on the laser and aim the beam at an IR card (not
included) on a wall about 5m away. You may need to follow the beam from the fiberport to
locate its direction.
