Dynamic power and chirp measurements of amplified 19 ps pulses in traveling-wave and reflective semiconductor optical amplifiers using a linear pulse characterization technique
| Autor: | Aidan Meehan, Javier Romero-Vivas, Michael J. Connelly, Lukasz Krzczanowicz |
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| Rok vydání: | 2019 |
| Předmět: |
Optical amplifier
Signal processing Optical fiber Materials science business.industry Amplifier 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention Power (physics) Pulse (physics) 010309 optics Optics law 0103 physical sciences Chirp Electrical and Electronic Engineering 0210 nano-technology business Sensitivity (electronics) |
| Zdroj: | Optical and Quantum Electronics. 51 |
| ISSN: | 1572-817X 0306-8919 |
| Popis: | The dynamic chirp and power of amplified pulses in semiconductor optical amplifiers is of importance in the application of these devices as conventional amplifiers and in optical signal processing. Non-linear measurement techniques are appropriate for pulsewidths less than 5 ps but have low sensitivity for wider pulsewidths commonly present in moderate bit rate optical systems. Typical measurements of chirp and power of 20 GHz repetition rate amplified 19 ps pulsewidth pulses in traveling-wave and reflective SOAs are obtained using a linear characterization technique based on small-signal sinusoidal modulation at half the pulse stream repetition rate and post-processing of the resulting optical spectrums. The results show that the amplified pulse dynamic power and chirp can have a complex structure and thereby pulse spectrum, which in turn can influence pulse propagation in optical fiber. |
| Databáze: | OpenAIRE |
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