Takasaka Shigehiro , Yasuyuki Ozeki , Shu Namiki , Misao Sakano and Yu Mimura
Abstract
To support larger telecommunications capacities, the speed 德赢ac米兰官方合作伙伴 optical transmission is increasing apace, and coming transmission rates in excess 德赢ac米兰官方合作伙伴 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 developed an optical phase-locked loop (OPLL) that can generate a highspeed optical beat signal 德赢ac米兰官方合作伙伴 1 THz. The OPLL consists 德赢ac米兰官方合作伙伴 an optical beat signal source and an all-optical phase detector, and to realize a simple construction has a pair 德赢ac米兰官方合作伙伴 3-electrode distributed feedback (DFB) laser diodes for the optical beat signal source and an all-optical phase detector based on two-photon absorption in a silicon avalanche photodiode. As a result 德赢ac米兰官方合作伙伴 measurement 德赢ac米兰官方合作伙伴 the synchronization characteristics with respect to a pulse train 德赢ac米兰官方合作伙伴 40-GHz repetition rate, it has been confirmed that this OPLL can synchronize 160-GHz and 1-THz beat signals with low timing jitter 德赢ac米兰官方合作伙伴 126 fs (0.016 rad2) and 28 fs (0.03 rad2) respectively.
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