Datasheet

1.2 QCL housings and packages
1.2.3. TO3 Housing
The TO3 housing is a hermetically sealed small-footprint housing designed for inte-
gration into commercial devices. It is available in two versions: the TO3-W has a
divergent output through an AR coated window, and the TO3-L (shown in figure 1.6)
has a collimated output. The TO3 contains a TEC and a NTC temperature sensor.
The TEC power is limited compared to the TEC included in the HHL or LLH housing,
therefore only pulsed lasers can be encapsulated in TO3 housings.
Figure 1.6.: TO3-L housing.
Note: QCLs mounted on an NS submount and controllers of the Starter Kit (see
section 1.3) are not compatible with the TO3 housing, therefore encapsulation of a
QCL in a TO3 housing is performed upon specific request only.
c
2012 SA 7