Quantum Instruments Cascade Laser Starter Kit manual Facet on the case, it is extremely fragile

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		1
pads with the tweezers pins along the axis of
the largest length of the copper submount.
[6] Place it in the receptacle parallel to the
window.
! Warning ! Avoid hitting the laser chip		2
facet on the case, it is extremely fragile.
[7] Place the screws (3) in the PET holder (5).		3	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 than on the back side.			6
[9] Once the PET holder (5) is engaged in the		4
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		Fig.27: Replacing the laser
+ LLH100 connection.

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 has 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 screws (1).