Mid-infrared vertical-cavity surface-emitting lasers based on lead salt/BaF2 Bragg mirrors

Martin Eibelhuber; Thomas Schwarzl; Andreas Winter; Harald Pascher; Wolfgang Heiss; Gunther Springholz

doi:10.1117/12.783927

1 February 2008 Mid-infrared vertical-cavity surface-emitting lasers based on lead salt/BaF₂ Bragg mirrors

Martin Eibelhuber, Thomas Schwarzl, Andreas Winter, Harald Pascher, Wolfgang Heiss, Gunther Springholz

Proceedings Volume 6900, Quantum Sensing and Nanophotonic Devices V; 69000E (2008) https://doi.org/10.1117/12.783927
Event: Integrated Optoelectronic Devices 2008, 2008, San Jose, California, United States

Abstract

We demonstrate mid-infrared continuous-wave vertical-cavity surface-emitting lasers based on Bragg mirrors using IV-VI semiconductors and BaF₂. This material combination exhibits a high ratio between the refractive indices of up to 3.5, leading to a broad mirror stop band with a relative width of 75 %. Thus, mirror reflectivities higher than 99.7 % are gained for only three layer pairs. Optical excitation of microcavity laser structures with a PbSe active region results in stimulated emission at various cavity modes between 7.3 μm and 5.9 μm at temperatures between 54 K and 135 K. Laser emission is evidenced by a strong line width narrowing with respect to the line width of the cavity mode and a clear laser threshold at a pump power of 130 mW at 95 K. Furthermore, we study a similar microcavity but without an active region. The resonance of such an empty microcavity has a narrow line width of 5.2 nm corresponding to a very high finesse of 750, in good agreement to transfer matrix simulations and to the expected mirror reflectivities.

Citation Download Citation

Martin Eibelhuber, Thomas Schwarzl, Andreas Winter, Harald Pascher, Wolfgang Heiss, and Gunther Springholz "Mid-infrared vertical-cavity surface-emitting lasers based on lead salt/BaF₂ Bragg mirrors", Proc. SPIE 6900, Quantum Sensing and Nanophotonic Devices V, 69000E (1 February 2008); https://doi.org/10.1117/12.783927

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available