Semiconductor optical gain

About: Semiconductor optical gain is a research topic. Over the lifetime, 5997 publications have been published within this topic receiving 96505 citations.

Rate-equation model for multi-mode semiconductor lasers with spatial hole burning

Abstract: We present a set of rate equations for the modal amplitudes and carrier-inversion moments that describe the deterministic multi-mode dynamics of a semiconductor laser due to spatial hole burning. Mutual interactions among the lasing modes, induced by high- frequency modulations of the carrier distribution, are included by carrier-inversion moments for which rate equations are given as well. We derive the Bogatov effect of asymmetric gain suppression in semiconductor lasers and illustrate the potential of the model for a two and three-mode laser by numerical and analytical methods.

Internal optical loss measurements in 1.3 [micro sign]m InGaAsP lasers

Abstract: A highly accurate method of measuring optical loss in individual semiconductor lasers is presented and compared with other methods. Measured loss data for 1.3 mu m semiconductor lasers are presented that illustrate the suitability of this technique for studying the dependence of loss on temperature and carrier density.

Planar lightwave circuit(plc) device, wavelength tunable light source comprising the same device and wavelength division multiplexing-passive optical network(wdm-pon) using the same light source

Abstract: In the manufacture and application of a PLC-ECL type wavelength tunable light source, provided is a wavelength tunable mechanism with improved performance and stability, a light source with improved packaging performance and mass productivity, and a light source applied to a WDM-PON with initialization and stabilization functions. The wavelength tunable light source having a PLC (planar lightwave circuit)-ECL (external cavity laser) structure includes a first housing in which a semiconductor optical gain medium is mounted, a second housing in which a PLC device is mounted, and a third housing in which an optical fiber is mounted. The first, second, and third housings make an optical axis alignment through an optical coupling lens and combined in a laser welding method.

Dynamic theory of picosecond optical pulse shaping by gain-switched semiconductor laser amplifiers

Abstract: A dynamic theory of semiconductor laser amplifiers is developed that takes into account the coherent time-dependent amplification of an incident optical pulse as well as the nonlinear dynamics of the semiconductor laser when driven be an unbiased injection-current pulse. For suitable time delays between the optical and the electrical pulse, a strongly nonlinear self-induced shortening of the emitted laser pulse is predicted. >

High performance optically pumped antimonide lasers operating in the 2.4–9.3μm wavelength range

Abstract: We provide an update on the further development of optically pumped semiconductor lasers based on the InAs∕InGaSb∕InAs type-II quantum wells. We show increased power generation, as well as the inherent flexibility to produce devices that can emit at any wavelength in the ∼2.4μm to ∼9.3μm range with consistently high photon-to-photon conversion rates.