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In this contribution, we will review our recent activities in the development of double nested cavity lasers. Several stable operating regimes can be achieved over a wide range of conditions.
Many different mode-locking techniques have been realized in the past [1, 2], but mainly focused on increasing the spectral bandwidth to achieve ultra-short coherent light pulses with well below picosecond duration. In contrast, no mode-locked laser scheme has managed to generate Fourier-limited nanosecond long pulses, which feature narrow spectral bandwidths (∼MHz regime) instrumental to applications...
We demonstrated a new regime of operation for ultrafast mode-locked lasers that we termed “burst-mode” modelocking. By exploiting an integrated 11th order micro-ring resonator, our scheme achieves stable operation resulting in a mode-locked train of pulses at 650 GHz with a burst mode envelope of 40 ps at 7.12 MHz.
We report an on-chip all-optical CMOS-compatible radio frequency spectrum analyzer with a bandwidth exceeding 2.5 THz, and use it to measure the intensity power spectra of mode-locked lasers with repetition rates up to 400 GHz.
We demonstrate novel microcavity lasers in an integrated, CMOS compatible platform. This platform has promise for telecommunications and on-chip WDM optical interconnects.
A potential solution for the demand for highly stable pulsed lasers at hundreds of GHz repetition rates is represented by passively mode locked fiber lasers. These lasers are composed of a band-limited amplifier, a dispersive element and a nonlinear element. When a high finesse resonant filter is added intracavity, they emit pulses with a repetition rate equal to the filter free spectral range (FSR)...
We demonstrate a mode locked laser based on a integrated high-Q microring resonator that exhibits stable operation of two slightly shifted spectral optical comb replicas, generating a highly monochromatic radiofrequency modulation.
We demonstrate a stable, low noise, 200GHz passively mode locked soliton laser based on a novel design that extends the Dissipative-FWM concept. It is based on a highly nonlinear, CMOS compatible integrated micro-ring resonator.
We demonstrate a stable passively mode locked soliton laser that extends the Dissipative-FWM concept, in a highly nonlinear, CMOS compatible integrated micro-ring resonator. Operation at 200GHz, free of supermode instability, is demonstrated.
We present a subpicosecond, 200 GHz-repetition rate, passively mode-locked laser based on high-harmonic four-wave mixing in an integrated CMOS-compatible high-Q nonlinear ring resonator.
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