Modulation properties of semiconductor lasers.

Power Supply and Current Modulation Circuits for Semiconductor Lasers

Design and construction of a stable current supply with protection circuits are described. The reported circuit provides a high-stable and high-level current variable from 0.5-1.2 A with the protect ion circuits to prevent over load current, voltage and off-range temperature operation. A detailed analysis of the circuit parameters is given and the time behaviors of the load voltage/current and ...

High-speed Modulation of Semiconductor Lasers and Properties of Silver-coated Quantum-dot Lasers by Andrew J. Millard

Synchronization properties of three delay-coupled semiconductor lasers.

We present detailed numerical studies of the dynamics of three semiconductor lasers when interacting in a linear chain through the mutual injection of their optical fields. In particular, we focus on the synchronization properties of the coupling-induced dynamics and the role of the delay in the interaction between the lasers. The recently experimentally and numerically demonstrated zero-lag sy...

Pulse properties of external-cavity mode-locked semiconductor lasers.

The performance of an external-cavity mode-locked semiconductor laser is investigated both theoretically and experimentally. The optimization analysis focuses on the regimes of stable mode locking and the generation of sub-picosecond optical pulses. We demonstrate stable output pulses down to one picosecond duration with more than 30 dB trailing pulse suppression. The limiting factors to the de...

Multi-component LDA using coherence properties of semiconductor lasers

We present a multi-component Laser-Doppler Anemometer, in which the channel separation is based on a new method of using the coherence properties of different semiconductor lasers, one for each LDA beam. Instead of requiring, for example, bulky multi-wavelengths lasers, additional opto-electronic components or very-largebandwidth detectors, the compact LDA presented here uses three semiconducto...