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We demonstrate for the first time a graphene-based passively Q-switched Tm3+:ZBLAN all-fiber laser at 1480 nm. Pulses with a duration of ∼ 9 µs, repetition rate of 29.9 kHz, and energy up to 447.16 nJ are obtained.
Fiber optical parametric oscillators (FOPOs) contain multiple longitudinal modes arising from the hundreds of meters to a kilometer scale length of their cavity. To obtain better understanding of the longitudinal modes and to find out how to suppress them, a model for the operation of FOPOs is introduced. This model utilizes the sinusoidal-input describing function (SIDF) as a quasi-linear approximation...
Fiber optic parametric oscillators are inherently mulimode and thus relatively noisy, due to relatively long resonant cavity length. We propose to use a Smith predictor control scheme to drastically suppress longitudinal modes.
We present the first system penalty measurements for all-optical wavelength conversion via four wave mixing in an integrated, CMOS compatible, ring resonator, obtaining < 0.3 dB system penalty at 2.5Gb/s for ∼22dBm average pump power.
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