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Group delay dispersion measurements in InGaAsP 1. 3-/mu/m optical amplifiers

Journal Article · · J. Lightwave Technol.; (United States)
DOI:https://doi.org/10.1109/50.17730· OSTI ID:5774152

Group delay dispersion (GDD) of -- 15 ps/nm has been measured in a near traveling wave optical amplifier at a wavelength where measured gain ripple was -- 2 dB, using the envelope phase-shift technique. This is compared to a measured GDD of -- 180 ps/nm in a single facet AR coated amplifier biased below threshold with a gain ripple of -- 17 dB. It is shown that these results agree qualitatively with standard theory. An important result is that GDD increases with the square of amplifier length. One may expect to reduce GDD by an order of magnitude if gain ripple is reduced to 0.5 dB.

Research Organization:
Polaroid Corp., Cambridge, MA (USA)
OSTI ID:
5774152
Journal Information:
J. Lightwave Technol.; (United States), Journal Name: J. Lightwave Technol.; (United States) Vol. 7:1; ISSN JLTED
Country of Publication:
United States
Language:
English