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The linewidth of an improved 40 GHz modelocked laser diode is investigated. The influence of its operation parameters on linewidth and the resulting performance in a 40Gband-DQPSK system is evaluated.
In this paper pairs of microspheres, are collected and suspended in high-resistance, distilled water, in the beam of a linearly polarized Ar+ laser. The sample is illuminated from below and the upper surface of a microcell is placed in the focal plane of a microscope objective. The light transmitted is collected with the help of an optical system and the image, formed on a screen, is digitized with...
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