Modulation Characteristics of High-Speed Transistor Lasers

High-Speed Direct-Modulation of InP Microdisk Lasers

We demonstrate for the first time high-speed direct-modulation of InP microdisk lasers by exploiting longitudinal mode competition. High-speed operation is demonstrated by means of S21 and PRBS modulation. We show open eye diagrams and bit-error rates up to 10 Gb/s.

High speed modulation of hybrid silicon evanescent lasers

High-speed modulation results and analysis of hybrid silicon evanescent lasers is described. It should be possible to achieve a 3dB-bandwidth over 50 GHz and a data rate of 50 Gbit/s. 2009 Optical Society of America OCIS codes: (130.3120) Integrated optics devices; (130.3130) Integrated optics materials

Optical ASK and FSK Modulation By Using Quantum Well Transistor Lasers

In this paper, transistor lasers (TLs) are used as an optical modulator for generation of ASK(Amplitude Shift Keying) and FSK (Frequency Shift Keying) optical signals. Our analysis is based on continuity equation, rate equations, and the theory of discontinuity of quasi-fermi level at the abrupt junction. Our simulation results indicate that, the specification of ASK and FSK optical signals, ar...

Enhanced Modulation and Noise Characteristics in 1.55 µm QD Lasers using Additional Optical Pumping

The modulation response, relative intensity noise (RIN) and frequency noise (FN) characteristics of quantum dot (QD) lasers are investigated theoretically in the presence of an external optical beam. Using small signal analysis of the rate equations for carriers and photons, it is demonstrated that by injecting excess carriers into the QDs excited state through optical pumping, the modulation r...

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