Large area surface-emitting photonic crystal quantum cascade laser

• Quantum cascade lasers (QCLs) are the sources of choice for many laser-based applications in the mid-infrared region. Because of the unique 2D in-plane coupling mechanism, a photonic crystal (PhC)QCL [1] has superior advantages on mode selection, surface emission, and beam control. In this work, we present a large-area (1.5 mm × 1.5 mm) PhC-QCL operating under pulsed mode at room temperature (289 K). The surface-emitting peak power is as high as 1 W.

Subject headings

NATURVETENSKAP  -- Fysik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences (hsv//eng)

Keyword

Photonic crystals

Beam control

Coupling mechanism

Mid-infrared regions

Mode selection

Quantum cascade lasers (QCLs)

Surface emissions

Surface emitting

Surface-emitting photonic crystals

Quantum cascade lasers

Publication and Content Type

ref (subject category)

kon (subject category)