NKT Photonics Koheras ADJUSTIK HP, Product Manual

Page: 25 / 115

25
Module variants
Tuning types
The laser’s variants can be further specified with different tuning options. The
options include narrow and wide thermal tuning for coarse adjustment, Piezo
tuning for finer adjustment and output power tuning. The tuning options must be
specified when the laser is ordered from the factory.
Thermal tuning
Thermal tuning options available are:
•
Narrow thermal tuning – provides narrow thermal tuning suitable for
systems where a wide tuning range is not required but vibration immunity is
vital.
•
Wide thermal tuning – provides a wider thermal tuning range at the expense
of reduced immunity to vibration and acoustic pickup.
Note: Wide thermal tuning is the default option for the lasers.
Piezo tuning
The internal laser modules support fine fast wavelength modulation using Piezo
tuning. For further information see
“Fast wavelength modulation” on page 28
.
Note: The lasers are fitted with Piezo tuning by default. If Piezo tuning is not required,
it must be specified when ordering the laser.
Output power tuning
1
Output power tuning is determined by the ADJUSTIK variant type:
•
C15 and Y10 variants – No power tuning, output power is fixed at the factory.
•
E15 variant – Limited power tuning from approximately 30 to 100% of the
maximum output power.
•
X15 variant – Full range power tuning from 0 to 100% of it’s maximum output
power. (If the amplitude modulation option is included)
1. Output power tuning is only available for ADJUSTIK lasers.