Integrated electroabsorption modulator/DBR laser linearized by RF current modulation

Integrated electroabsorption modulator/DBR laser linearized by RF current modulation

We measure the two-tone intermodulation distortion of an electroabsorption modulator integrated with a DBR laser. Driving the modulator with an ac current yields a significant improvement in linearity over conventional voltage modulation at RF frequencies up to 10 MHz with more than 13 dBc reduction...

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Veröffentlicht in:IEEE photonics technology letters 1995-10, Vol.7 (10), p.1154-1156
Hauptverfasser: Wilson, G.C., Wood, T.H., Koren, U.
Format: Artikel
Sprache:eng
Schlagworte:
Capacitance
Chirp modulation
Distortion measurement
Distributed Bragg reflectors
Frequency modulation
Intermodulation distortion
Laser noise
Linearity
Radio frequency
Voltage
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Zusammenfassung:We measure the two-tone intermodulation distortion of an electroabsorption modulator integrated with a DBR laser. Driving the modulator with an ac current yields a significant improvement in linearity over conventional voltage modulation at RF frequencies up to 10 MHz with more than 13 dBc reduction in the minimum distortion values at 0.5 MHz. High-frequency performance is presently limited by the capacitance loading the current drive.< >
ISSN:1041-1135
1941-0174
DOI:10.1109/68.466574