Inverted Optical Modulators for Communications Networks.

Abstract

The design and fabrication of a Kerr Lens Modelocked (KLM) chromium-doped forsterite laser is described. The KLM forsterite laser allows the study of ultrafast optical and electronic properties of materials in the near-IR with femtosecond time resolution. In particular, the laser produces sub-200 femtosecond pulses (tunable between 1240 and 1285 nm) with 2 kw of peak power at a 93 MHz repetition rate. The KLM forsterite laser was used in a degenerate pump-probe experiment to investigate the heavy-bole exciton dynamics of GaInAlAs/AlInAs multiple quantum wells. By tuning the laser to various wavelengths in the heavy-hole exciton region, both differential transmission and dephasing as a function of pump-probe delay were investigated. Ultrafast dynamics, such as the optical Stark effect, two photon absorption, and absorption bleaching, were readily observed.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1996
Accession Number
ADA313832

Entities

People

  • N. Peyghambarian

Organizations

  • Arizona Board of Regents

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Absorption
  • Dye Lasers
  • Femtosecond Time
  • Frequency Combs
  • Laser Applications
  • Laser Beams
  • Laser Mediums
  • Laser Pulses
  • Laser Resonators
  • Lasers
  • Light (Electromagnetic Radiation)
  • Materials
  • Optical Lattices
  • Quantum Wells
  • Refractive Index
  • Repetition Rate
  • Two Photon Absorption

Fields of Study

  • Physics

Readers

  • Optical Physics and Photonics.
  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.

Technology Areas

  • Directed Energy
  • Microelectronics
  • Quantum Computing