Variation of frequency chirp with wavelength in an InGaAsP/InP multiple-quantum-well (MQW) waveguide electroabsorption modulator |
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| Authors: | MS Whalen TH Wood BI Miller U Koren CA Burrus G Raybon |
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| Affiliation: | AT&T Bell Lab., Holmdel, NJ, USA; |
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| Abstract: | Through measurements of the modulation index and the optical power spectra, the chirp parameter for an InGaAsP quantum-well electroabsorption waveguide modulator has been determined. The result shows that the frequency chirp parameter achieves a minimum value of 0.6 in the wavelength range 1509-1545 nm. This is significantly less than what is obtained from direct intensity modulation of injection lasers, making this a useful device in high-bit-rate, long-haul systems.<> |
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