skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Gamma irradiation of Fabry–Perot interband cascade lasers

Abstract

Two Fabry-Perot interband cascade lasers (ICLs) were exposed to Cobalt-60 gamma rays for a dosage of 500 krad(Si) each, which is higher than is typically encountered in space applications. The ICLs do not show any significant changes in threshold current or slope efficiency, suggesting the suitability of ICLs for use in radiation environments.

Authors:
 [1];  [1];  [1];  [2];  [2];  [3];  [2];  [2];  [2];  [2]
  1. Pacific Northwest National Laboratory, Richland, Washington
  2. Naval Research Laboratory, Washington, DC
  3. Sotera Defense Solutions, Inc., Columbia, Maryland
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1398201
Report Number(s):
PNNL-SA-125036
Journal ID: ISSN 0091-3286; NN2001000
DOE Contract Number:
AC05-76RL01830
Resource Type:
Journal Article
Resource Relation:
Journal Name: Optical Engineering; Journal Volume: 57; Journal Issue: 01
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; Semiconductor lasers; quantum cascade

Citation Formats

Myers, Tanya L., Cannon, Bret D., Brauer, Carolyn S., Canedy, Chadwick L., Kim, Chul Soo, Kim, Mijin, Merritt, Charles D., Bewley, William W., Vurgaftman, Igor, and Meyer, Jerry R. Gamma irradiation of Fabry–Perot interband cascade lasers. United States: N. p., 2017. Web. doi:10.1117/1.OE.57.1.011016.
Myers, Tanya L., Cannon, Bret D., Brauer, Carolyn S., Canedy, Chadwick L., Kim, Chul Soo, Kim, Mijin, Merritt, Charles D., Bewley, William W., Vurgaftman, Igor, & Meyer, Jerry R. Gamma irradiation of Fabry–Perot interband cascade lasers. United States. doi:10.1117/1.OE.57.1.011016.
Myers, Tanya L., Cannon, Bret D., Brauer, Carolyn S., Canedy, Chadwick L., Kim, Chul Soo, Kim, Mijin, Merritt, Charles D., Bewley, William W., Vurgaftman, Igor, and Meyer, Jerry R. 2017. "Gamma irradiation of Fabry–Perot interband cascade lasers". United States. doi:10.1117/1.OE.57.1.011016.
@article{osti_1398201,
title = {Gamma irradiation of Fabry–Perot interband cascade lasers},
author = {Myers, Tanya L. and Cannon, Bret D. and Brauer, Carolyn S. and Canedy, Chadwick L. and Kim, Chul Soo and Kim, Mijin and Merritt, Charles D. and Bewley, William W. and Vurgaftman, Igor and Meyer, Jerry R.},
abstractNote = {Two Fabry-Perot interband cascade lasers (ICLs) were exposed to Cobalt-60 gamma rays for a dosage of 500 krad(Si) each, which is higher than is typically encountered in space applications. The ICLs do not show any significant changes in threshold current or slope efficiency, suggesting the suitability of ICLs for use in radiation environments.},
doi = {10.1117/1.OE.57.1.011016},
journal = {Optical Engineering},
number = 01,
volume = 57,
place = {United States},
year = 2017,
month = 9
}
  • Fabry-Perot quantum cascade lasers (QCLs) were characterized following irradiation by high energy (64 MeV) protons and Cobalt-60 gamma rays. Seven QCLs were exposed to radiation dosages that are typical for a space mission in which the total accumulated dosages from both radiation sources varied from 20 krad(Si) to 46.3 krad(Si). The QCLs did not show any measurable changes in threshold current or slope efficiency suggesting the suitability of QCLs for use in space-based missions.
  • Fabry-Perot quantum cascade lasers (QCLs) were characterized following irradiation by high energy (64 MeV) protons and Cobalt-60 gamma rays. Seven QCLs were exposed to radiation dosages that are typical for a space mission in which the total accumulated dosages from both radiation sources varied from 20 krad(Si) to 46.3 krad(Si). The QCLs did not show any measurable changes in threshold current or slope efficiency suggesting the suitability of QCLs for use in space-based missions.
    Cited by 1
  • In this Letter, we present a method of performing broadband mid-infrared spectroscopy with conventional, free-running, continuous wave Fabry-Perot quantum cascade lasers (FP-QCLs). The measurement method is based on multi-heterodyne down-conversion of optical signals. The sample transmission spectrum probed by one multi-mode FP-QCL is down-converted to the radio-frequency domain through an optical multi-heterodyne process using a second FP-QCL as the local oscillator. Both a broadband multi-mode spectral measurement as well as high-resolution (∼15 MHz) spectroscopy of molecular absorption are demonstrated and show great potential for development of high performance FP-laser-based spectrometers for chemical sensing.
  • Scaling laws for predicting the maximum cw output power from conventional Fabry-Perot HCN lasers are established as functions of resonator geometrical parameters, losses, and coupling. These results agree well with measured powers for lasers using different Fabry-Perot cavities. Comparison between these scaling laws and those previously established for cylindrical waveguide lasers shows that, for discharge lengths exceeding 0.5 m, the waveguide cavity is always the best design for the 337-..mu..m HCN lasers.
  • This study determines systematic corrections of values for temperatures obtained through spectral relative spectroreflectometry which are necessary for substituting measurements of directional-hemispherical albedos with measurements of bidirectional albedos. It is evident that the values for the correlations are a function of the degree of diffusivity for the pyrometric objects. It was concluded that relative spectroreflectometry allows one to correctly determine the true temperature of objects with unknown reflective properties through measurements of the relative bidirectional albedo, taking into account spectral differences in the intensity functions which can be characterized by ratios of equivalent solid angles omega/sub 2//omega/sub 1/. The quantitymore » of the systematic correction in determining the temperature is given by the approximation equation.« less