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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.
The third-order process of spontaneous four-wave mixing (SFWM) has seen increasing use due to the CMOS-incompatibility and difficulty of integrating second-order material platforms, as well as due to the presence of third-order nonlinearities in common platforms. In integrated optics, SFWM's low efficiency is often compensated using on-chip nonlinear microcavities [1], however, excitation schemes...
Microresonator based frequency combs or microcombs have attracted considerable interest in recent years as they would benefit a widespread of applications including high speed communication system, metrology, ultrafast optical clocks and on chip optical signal processing. A great amount of work on microcombs has been done in the past few years; coherent sources based on optical parametric generation...
The recently-introduced use of integrated frequency combs (on-chip light sources with a broad spectrum of evenly-spaced frequency modes, generated by four-wave mixing in optically-excited nonlinear microcavities) below optical parametric oscillation threshold for quantum state generation has provided a solution for scalable and multi-mode quantum sources [1, 2]. Pulsed quantum frequency combs, in...
In this talk, the physics of microring resonators is discussed in the classical and quantum regimes, in the context of the exploitation of chi-3 effects in these cavities as done by our group. Through the implementation of a novel microring pumping scheme and a quantum reinterpretation of the frequency comb, we present an integrated platform for the generation of quantum optical states spread over...
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 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 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 results showing the formation and evolution of a photonic crystal cavity during writing by selective optical exposure in a photosensitive chalcogenide photonic crystal. Q-factors of up to 125,000 were obtained in these cavities.
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