Starter Kit Instruction Manual Maintenance 39
[4] Install the new laser (4) into the holder
using small tweezers ( 0.5cm aperture).
[5] Hold the laser (4) on the gilded ceramic
pads with the tweezers pins alo ng the axis of
the larg e st length of the copper submount.
[6] Place it in the receptacle parallel to the
window.
! Warning ! Avoid hitti ng the laser chip
facet on the case, it is extremely fragile.
[7] Place the screws (3) in the PET holder (5).
[8] Place the PET holder (5) on the two guides
(6) on the back of the laser receptacle being
careful of maintaining the PET holder higher
on the laser side tha n on the back side.
[9] Once the PET holder (5) is engaged in the
guides, push it down until contact with the
gilded ceramic pads is established.
[10] Screw it to the receptacle.
[11] Verify that the contact is established by
measuring with an ohm meter on the LLH100
low impedance plug.
Note: For reproducible measurement be care-
ful of measuring with the positive probe on the
+ LLH100 connect ion.
Note: If the contact is bad, adjust the plastic
screws at the pressing end of the PET holder
(5).
Note: If the contact is bad, clean the bottom
of the submount with grinding paper, be care-
ful of not damaging the bonding wires and the
laser facet.
[12] Place the dry desiccant bag close to the
low impedance line plug. Only applicable if
desiccation is needed and the lasers ha s been
shipped with a desiccant bag.
Note: This operation is preferably performed
in a gloves box under dry nitrogen atmosphere
if the ambient atmosphere is humid (this is
not necessary under normal conditions 50-60%
humidity).
[13] Close the cover (2) with the sc rews (1).
4
2
1
3
5
6
Fig.27: Replacing the laser