High-Power Continuous-Wave Single-Longitudinal-Mode Operation of an Optically Pumped DFB Laser at Lambda Approximately 3.64 Micrometers

Abstract

High-power continuous-wave (CW) single-longitudinal-mode emission at 3.64 micrometers is obtained from an optically pumped distributed-feedback (DFB) laser. The Bragg stopband and two degenerate DFB modes are observed at certain pump powers. The laser incorporates 14 InAs-InGaSb-InAs type-II quantum wells imbedded in an InGaAsSb waveguide. The index-coupled 1-D grating is fabricated in the top clad using interference lithography and plasma etching. A 110-micrometers-wide stripe from a 1.9-micrometers CW laser provides both optical pumping and gain guiding. Record high output power of more than 560 mW per side is obtained at 80 K. The wavelength is tunable over a 6.8-nm range by varying the pump power from 1 to 8.1 W.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
May 01, 2008
Accession Number
ADA596850

Entities

People

  • R. Kaspi
  • Steven Brueck
  • Xue Li

Organizations

  • University of New Mexico

Tags

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Continuous Waves
  • Directed Energy Weapons
  • Distributed Feedback Lasers
  • Electron Microscopes
  • Electronics
  • Emission
  • Emission Spectra
  • High Resolution
  • Lasers
  • Light Sources
  • Measurement
  • Optical Fiber Lasers
  • Quantum Cascade Lasers
  • Scanning Electron Microscopes
  • Spectra

Fields of Study

  • Physics

Readers

  • Optical Physics and Photonics.

Technology Areas

  • Directed Energy
  • Quantum Computing