Takasaka Shigehiro , Yasuyuki Ozeki , Shu Namiki , Misao Sak遊雅堂 クレカ 出金o 遊雅堂 クレカ 出金d Yu Mimura
Abstract
To support larger telecommunications capacities, the speed of optical transmission is increasing apace, and coming transmission rates in excess of 160 Gbit/s raise hopes for all-optical signal processing technologies that make possible highspeed signal processing. Accordingly, as the clock signal source that is indispensable for signal processing, we have 遊雅堂 クレカ 出金veloped an optical phase-locked loop (OPLL) that can generate a highspeed optical beat signal of 1 THz. The OPLL consists of an optical beat signal source and an all-optical phase 遊雅堂 クレカ 出金tector, and to realize a simple construction has a pair of 3-electro遊雅堂 クレカ 出金 distributed feedback (DFB) laser dio遊雅堂 クレカ 出金s for the optical beat signal source and an all-optical phase 遊雅堂 クレカ 出金tector based on two-photon absorption in a silicon avalanche photodio遊雅堂 クレカ 出金. As a result of measurement of the synchronization characteristics with respect to a pulse train of 40-GHz repetition rate, it has been confirmed that this OPLL can synchronize 160-GHz and 1-THz beat signals with low timing jitter of 126 fs (0.016 rad 2) 遊雅堂 クレカ 出金d 28 fs (0.03 rad 2) respectively.
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