Alpes Lasers . TC-3 Datasheet Page 12

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Chapter 1: Overview
1.1. ALPES LASERS products
ALPES LASERS manufactures Quantum Cascade Lasers (QCLs) of two types: sin-
glemode Distributed-Feedback (DFB) or multimode Fabry-Perot (FP), which can be
operated in two modes: continuous wave (CW) or pulsed. ALPES LASERS lasers are
available in different types of packaging, presented in section 1.2. ALPES LASERS
developed dedicated electronics to control the temperature and current drive of its
QCLs; see section 1.3 for details.
ALPES LASERS constantly develops new QCLs and electronics to satisfy inquiries from
its customers. Contact ALPES LASERS to find the best solution for your application.
1.1.1. QCL parameters and performance
All ALPES LASERS lasers are thoroughly tested and characterized. The results are
reported in datasheets, which are readily available on ALPES LASERS website. Each
QCL is delivered with its datasheet, containing data on singlemode and multimode
emission, IV curves, emitted power, maximum operating current and operation tem-
perature. See section 4.2 for details.
1.1.2. QCL geometry
Figure 1.1 shows an ALPES LASERS QCL growth and a laser chip mounted on an NS
submount (see section 1.1.3). By convention, the vertical axis of the laser is parallel
to the growth direction, as well as the beam polarization (i.e. electric field) and the
NS submount screw holes axis. The emission axis is perpendicular to the growth
direction and to the edges of the NS submount.
Figure 1.1.: ALPES LASERS QCL growth (left) and laser chip mounted on a submount
(right).
The laser chip is soldered to a copper base and is bonded with gold bonds to
two AlN ceramic pads, which are themselves mounted on the same copper base, as
2 QCL user’s manual v3.1.3
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