OEM MOPA Light Sources. User Manual.
Document ID:
SL.3328.01.000RE / Rev. 1.0, Date: 25/09/2020 Page
12
of
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4 Installation and Using the Light Source
4.1 Getting Started
It is recommended that the following procedures are completed prior to using the lightsource for the first time.
4.1.1
Fix the Light Source onto an appropriate heat sink firmly (refer also to Sec. 3.1 of the document for
more details).
4.1.2
Apply 12 V DC power. Ensure that the DC power supply unit in use fulfills the requirements of the
“Absolute Maximum Ratings” (Table 4) above, including the ripple requirement. Do not make other
connections at this stage (USB, etc.).
The
“STATUS” LED on the device panel will flicker for a short time on startup (for approximately 15 sec), and
will light constant green when startup period is complete.
4.1.3
Push the
“ENABLE” button on the front panel to switch the optical output on – the “OUTPUT” LED will
then light green (a short delay is acceptable due to the soft start of the optical output). All SLDs installed will
be powered on.
Measure output power with a dedicated power-meter, and compare the result with the power value specified
in the individual Acceptance Test Report sheet provided (ATR). Make sure that output power you obtain is
comparable to that on the datasheet i.e. within
±10%.
4.1.4
Connect the light source to a spectrum analyzer. Compare the spectrum with that depicted in ATR.
There should be no perceptible differences between the two spectrums. Polarization insensitive spectrum
analyzers (OSAs), e.g. ANDO AQ6317B / Yokogawa AQ6370 OSAs are recommended for this task.
Polarization sensitive OSAs, or OSAs with MM fiber optical inputs may disturb the measurement results, i.e.
introduce misbalances, distortions and artifacts to measured spectral shapes.
4.1.5
If no abnormality was found on the preceding stages the lightsource is now ready for use also when the
Light Source has been run successfully for the first time it can now be controlled via the USB port, or analog
signals via the remote port (see Fig. 1, 2, and Sec. 4.4). To prolong the device lifetime, it is recommended to
switch off the optical output when the lightsource is not in use.
WARNING
Optical output in fibre-coupled light sources is achieved by the use of an FC /APC mating sleeve and FC/APC
connectors (optical output port). FC/APC connectors are sensitive to even the slightest contamination. Failure
to comply with the following operating requirements may result in contamination entering the optical output
port severely reducing the performance of the unit and may result in permanent damage to the optical output
port. Any such occurrence is the responsibility of the user and is
NOT covered by the warranty
.
DO NOT:
Insert any FC/APC connector into the optical output port without first ensuring it is clean. It is vital
that you clean the fiber ferrule before each insertion.
No known cleaning methods are 100% effective
therefore it is imperative that inspection is included as part of the cleaning process.
Cleaning FC/APC connectors: using a lint free cloth and isopropyl alcohol (Min 99%) and clean
compressed air to dry off the connector is recommended.
Cleaning the optical output port: Using an Improper cleaning method may result in permanent damage to
the optical output port. ONLY users who have the knowledge, training and equipment should attempt cleaning
the optical output port. For further information please contact Superlum.
