Laser Test Report

Each laser engine is shipped with a laser test report. Typical laser data reports containing the optical power, the trigger, the clock signal and frequency traces are shown below.

The specifications listed below are for example purposes only and are not representative of all product configurations offered by Axsun Technologies, which can be found here or via communication with our Sales Team at info@axsun.com or 978-262-0049.

Page 1 of the report lists:

  • The Serial Number of the engine which is its unique identifier. There is a label on the engine itself that lists this serial number.

  • The Part Number of the engine which identifies which configuration the engine lies under.

  • The Firmware Version clarifies which firmware version was loaded on the engine and tested with.

  • Values of various Parameters tested against Minimum and Maximum Specifications, either standard per product configuration or as custom as agreed upon by the customer.

Page 2 of the report shows traces of the clock frequency, trigger, power and clock signal taken with 50 ohm termination using Tektronix scope DPO 7254, 2.5 GHz, and 40 GS/s.

The below snapshots are a few examples of the laser reports sent with some standard configurations. Laser reports for other units may include more information than what is shown below, depending on each custom configuration and on customer requirements.

Example 1

This is the example of a 1060 nm benchtop enclosure (AXP50125-3) that has 100 kHz sweep rate, 143 nm tuning range, 31 mW of total average power, and its clock is set with dummy clocks ON.

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The above shows 4 main plots:

  • the clock frequency variation over the sweep

    • the minimum, average and maximum clock frequencies are listed at the top of the graph

    • the number of clocks is correspondent to the red region

    • the sampled duty cycle is reported above the clock frequency trace and is determined by the red region divided by the total period (determined from the trigger trace)

  • the trigger trace over time

    • the sweep start is marked with a black circle

    • the red region starts from the sweep start (1.18 us in this case) and extends for the sweep range (4.98 us in this case).

  • the optical power trace over time

    • the average power over the total period is reported above the graph

    • PavgBW is the average power in band / red region / sampled region

    • PpeakBW is the peak power in band / red region / sampled region

    • the total duty cycle is reported above the power trace and is determined by the period between the 2 red stars marked on the power trace divided by the total period (determined from the trigger trace)

  • the clock signal over time

    • in this case the dummy clocks are ON. There is a constant frequency 125 MHz clock signal in the region where there is no power from the laser

Example 2

This the example of a 1310nm integrated engine (standard OEM with EDAQ, AXP50124-17) that has 100 kHz sweep rate, 132 nm tuning range, 30 mW of total average output power and, its clock is set with dummy clocks ON.

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Example 3

This is an example of a 1060 nm small form factor OEM (AXP50124-24) that has 200 kHz sweep rate, 111 nm tuning range. It is tested with an external clock.

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