Excitation transfer between optically injected microdisk lasers.

Recently, we have theoretically demonstrated that optically injected microdisk lasers can be tuned in a class I excitable regime, where they are sensitive to both inhibitory and excitatory external input pulses. In this paper, we propose, using simulations, a topology that allows the disks to react on excitations from other disks. Phase tuning of the intermediate connections allows to control the disk response. Additionally, we investigate the sensitivity of the disk circuit to deviations in driving current and locking signal wavelength detuning. Using state-of-the-art fabrication techniques for microdisk laser, the standard deviation of the lasing wavelength is still about one order of magnitude too large. Therefore, compensation techniques, such as wavelength tuning by heating, are necessary.

[1]  Wofgang Maas,et al.  Networks of spiking neurons: the third generation of neural network models , 1997 .

[2]  Daan Lenstra,et al.  Multipulse excitability in a semiconductor laser with optical injection. , 2002, Physical review letters.

[3]  P. Monnier,et al.  Fast thermo-optical excitability in a two-dimensional photonic crystal. , 2006, Physical review letters.

[4]  D Goulding,et al.  Excitability in a quantum dot semiconductor laser with optical injection. , 2007, Physical review letters.

[5]  R. Baets,et al.  Design and Optimization of Electrically Injected InP-Based Microdisk Lasers Integrated on and Coupled to a SOI Waveguide Circuit , 2008, Journal of Lightwave Technology.

[6]  Liu Liu,et al.  A Thermally Tunable III–V Compound Semiconductor Microdisk Laser Integrated on Silicon-on-Insulator Circuits , 2010, IEEE Photonics Technology Letters.

[7]  Marc Sorel,et al.  Excitability in optical systems close to Z2-symmetry , 2010, 1108.3738.

[8]  Sylvain Barbay,et al.  Excitability in a semiconductor laser with saturable absorber. , 2011, Optics letters.

[9]  J. Danckaert,et al.  Solitary and coupled semiconductor ring lasers as optical spiking neurons. , 2011, Physical review. E, Statistical, nonlinear, and soft matter physics.

[10]  Antonio Hurtado,et al.  Investigation of vertical cavity surface emitting laser dynamics for neuromorphic photonic systems , 2012 .

[11]  I. Sagnes,et al.  Excitability and self-pulsing in a photonic crystal nanocavity , 2012 .

[12]  B. Schrauwen,et al.  Cascadable excitability in microrings. , 2012, Optics express.

[13]  Benjamin Schrauwen,et al.  Time-domain and frequency-domain modeling of nonlinear optical components at the circuit-level using a node-based approach , 2012 .

[14]  L. Gelens,et al.  Oscillations and multistability in two semiconductor ring lasers coupled by a single waveguide , 2013 .

[15]  M Giudici,et al.  Control of excitable pulses in an injection-locked semiconductor laser. , 2013, Physical review. E, Statistical, nonlinear, and soft matter physics.

[16]  P. R. Prucnal,et al.  A Leaky Integrate-and-Fire Laser Neuron for Ultrafast Cognitive Computing , 2013, IEEE Journal of Selected Topics in Quantum Electronics.

[17]  Joni Dambre,et al.  Excitability in optically injected microdisk lasers with phase controlled excitatory and inhibitory response. , 2013, Optics express.

[18]  D Van Thourhout,et al.  Uniformity of the lasing wavelength of heterogeneously integrated InP microdisk lasers on SOI. , 2013, Optics express.