Experiment name:

     Aigtek power amplifier drives NKT tunable light source

Research direction:

     optical device transmission spectrum

Experiment content:

     Drive NKT tunable light source with high frequency and high voltage signal to produce wavelength tunable narrow linewidth light source

Test purpose:

    Use the power amplifier to amplify the scanning signal voltage, drive the PZT in the laser cavity, and realize the fine scanning of the NKT narrow linewidth laser output light source wavelength

Test equipment:

    NKT Photonics: K82-150-13

Amplifier model:

     Aigtek: ATA-2022H

experiment procedure:

     After the laser signal generated by the NKT narrow linewidth tunable laser passes through the high-frequency voltage amplifier, the amplitude (peak-to-peak value) is amplified to about one hundred volts, and then connected to themicro-knotted fiber resonator. It can be detected by an oscilloscope. Good to test the transmission spectrum of optical devices, and test the transmission characteristics of optical devices with high precision.

Test Results:

    The laser wavelength generated by the NKT narrow linewidth laser is tuned by the cavity mirror, and the PZT is driven to change the cavity length after high-frequency voltage amplification, which can output high-power and high-stability optical scanning signals. The transmission performance of the optical wavelength scanning signals to the optical cavity The test is performed to obtain the comb-shaped transmission spectrum of the micro-knotted cavity.

The performance of the power amplifier in this experiment:

    PZT tuned to scan the narrow linewidth laser wavelength to obtain the resonance peak response in the microcavity

The reason why you choose this power amplifier:

     good amplification effect, stable output