Advanced Semiconductor Lasers Using the Quantum Confined Stark Effect Tuning Mechanism.
Abstract
This report results from a contract tasking University College, London as follows: For this 12-month effort, the contractor will investigate the design and fabrication of multiple quantum well \(MQW) tunable lasers, using reverse biased quantum confined Stark effect tuning sections for use in the 1,550 wavelength telecommunications window and studying their performance characteristics. The goal of the effort is to provide a monolithically integrated optical source capable of tuning and uniform frequency modulation to microwave frequencies for use in wavelength division multiplex (WDM\) systems, as well as a low chirp or controlled chirp source for wideband, directly modulated intensity modulation systems. The effort will focus on the use of InP/InGaAsP MQW lasers with ridge guide structures and electrically isolated reverse biased sections for fast tuning and modulation. The effort shall provide for the specification and manufacture of the MOW material, laser device design and processing, and an evaluation or the pertinent performance characteristics of the completed devices. The experimental performance will be analyzed to reline the theoretical device modeling approaches as well as the materials and device fabrication technologies. Specific areas to be address will include: (1) an investigation to the QCSE induced refractive index variation in the InP/InGaAsP materials system leading to the design of optimized tuning/modulation sections to the laser. (2) The development of an intersection electrical isolation technique having negligible optical loss. (3) An investigation or tunable laser structures for the 1,550 nanometer wavelength range leading to the selection of a design compatible with relatively simple fabrication techniques. (4) me fabrication and evaluation of a prototype QCSE tuned laser.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1999
- Accession Number
- ADA370228
Entities
People
- Alwyn Seeds
- Ju-bin Song
- Oliver Berger
- Oliver Gough
Organizations
- University College London