41 GHz and 10.6 GHz low threshold and low noise InAs/InP quantum dash two-section mode-locked lasers in L band

Abstract

(2011) The self-consistent nonlinear theory of electron cyclotron maser based on anomalous Doppler effect Appl. Phys. Lett. 98, 261502 (2011) Cavity quantum electrodynamics for photon mediated transfer of quantum states J. Appl. Phys. 109, 113110 (2011) A method of suppressing mode competition in a coaxial localized-defect Bragg resonator operating in a higherorder mode Phys. Plasmas 18, 064506 (2011) Strong coupling between a photonic crystal nanobeam cavity and a single quantum dot Appl. Phys. Lett. 98, 173104 (2011) Additional information on J. Appl. Phys. This paper reports recent results on InAs/InP quantum dash-based, two-section, passively modelocked lasers pulsing at 41 GHz and 10.6 GHz and emitting at 1.59 lm at 20 C. The 41-GHz device (1 mm long) starts lasing at 25 mA under uniform injection and the 10.6 GHz (4 mm long) at 71 mA. Their output pulses are significantly chirped. The 41-GHz laser exhibits 7 ps pulses after propagation in 60 m of a single-mode fiber. The 10.6-GHz laser generates one picosecond pulses with 545 m of a single-mode fiber. Its single side-band phase noise does not exceed -80 dBc/Hz at 100 kHz offset, leading to an average timing jitter of 800 fs.

Exciton and biexciton dynamics in single self-assembled InAs/InGaAlAs/InP quantum dash emitting near 1.55 μm

“…[5][6][7][8][9][10][11][12][13][14][15] Their beneficial operating parameters, like, e.g., low threshold current density and its improved temperature stability, broad wavelength tunability, and high speed of modulation, stem from the properties of the gain medium composed of InAs QDashes grown on InP(001). [6][7][8][9][10][11][12][13][14][15] The InAs/InP(001) material system remains crucial for fabrication of quasi-zero-dimensional semiconductor nanostructures emitting above 1.5 lm. [1][2][3][4][5]8 This may situate the InAs/InP(001) QDashes at the cross point between quantum information processing and optical communication technology.…”