Full Content is available to subscribers

Subscribe/Learn More  >
Proceedings Article

High power 1D and 2D photonic crystal distributed feedback quantum cascade lasers

[+] Author Affiliations
B. Gökden, Y. Bai, S. Tsao, N. Bandyopadhyay, S. Slivken, M. Razeghi

Northwestern Univ. (USA)

Proc. SPIE 7945, Quantum Sensing and Nanophotonic Devices VIII, 79450C (January 24, 2011); doi:10.1117/12.879855
Text Size: A A A
From Conference Volume 7945

  • Quantum Sensing and Nanophotonic Devices VIII
  • Manijeh Razeghi; Rengarajan Sudharsanan; Gail J. Brown
  • San Francisco, California | January 22, 2011

abstract

For many practical applications that need bright sources of mid-infrared radiation, single mode operation and good beam quality are also required. Quantum cascade lasers are prominent candidates as compact sources of mid-infrared radiation capable of delivering very high power both CW and under pulsed operation. While 1D photonic crystal distributed feedback structures can be used to get single mode operation from quantum cascade lasers with narrow ridge widths, novel 2D photonic crystal cavity designs can be used to improve spectral and spatial purity of broad area quantum cascade lasers. In this paper, we demonstrate high power, spatially and spectrally pure operation at room temperature from narrow ridge and broad area quantum cascade lasers with buried 1D and 2D photonic crystal structures. Single mode continuous wave emission at λ = 4.8 μm up to 700 mW in epi-up configuration at room temperature was observed from a 11 μm wide 5 mm long distributed feedback quantum cascade laser with buried 1D gratings. High peak powers up to 34 W was obtained from a 3mm long 400 μm wide 2D photonic crystal distributed feedback laser at room temperature under pulsed operation. The far field profile had a single peak normal to the laser facet and the M2 figure of merit was as low as 2.5. Emission spectrum had a dominating single mode at λ = 4.36 μm.

© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

B. Gökden ; Y. Bai ; S. Tsao ; N. Bandyopadhyay ; S. Slivken, et al.
"High power 1D and 2D photonic crystal distributed feedback quantum cascade lasers", Proc. SPIE 7945, Quantum Sensing and Nanophotonic Devices VIII, 79450C (January 24, 2011); doi:10.1117/12.879855; http://dx.doi.org/10.1117/12.879855


Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).

Figures

Tables

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

Advertisement
  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.