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We report on a fiber-stabilized agile laser with ultra-low frequency noise. The frequency noise power spectral density (PSD) is comparable to the one of an ultra-stable cavity stabilized laser at Fourier frequencies higher than 30 Hz. When it is chirped at a constant rate of ~ 40 MHz/s, the max non-linearity frequency error is about 50 Hz peak to peak over more than 600 MHz tuning range. When the...
We present here a new approach consisting in using part of an optical telecommunications network carrying simultaneously data traffic. Our 108 km comprises 86 km of dedicated fibre and 22 km of fibre from the French national telecommunications network for technology, education and research (RENATER). The link is a loop with both ends located in Observatoire de Paris to characterize the link stability...
Integrated 4-bit (355 times 1200 mum2) optical memory elements, using novel active multi-mode-interferometer bi-stable laser diodes, showed single, common and low operation current (55 mA) with uniform characteristics.
Integrated optical RAM showed extremely wide and uniform hysteresis windows of 32 mA plusmn 2 mA (with operation current around 70 mA) using novel active MMI-BLD, with relatively high ON/OFF ratio of 18 dB in 315 times 600 mum2 total device size.
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