Fabry-Perot cavities based on two-dimensional photonic crystals fabricated in InP membranes

• We measured the transmission and analyzed out-of-plane loss in Fabry-Perot filters based on photonic crystals etched in a suspended InP membrane. The resonant cavity of the Fabry-Perot filter is based on a single row line defect introduced in a triangular lattice of air holes. The transmission spectrum of these structures is measured by using the end-fire method. We measured a cavity quality factor of 3200 for a resonance wavelength in the 1.5 mum wavelength range. We identify that radiation through the holes at both extremities of the resonant cavity largely contributes to the loss in the device.

Subject headings

NATURVETENSKAP  -- Fysik (hsv//swe)

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

Keyword

wave-guides

slab

Publication and Content Type

ref (subject category)

art (subject category)