Fiber-to-chip coupler designed using an optical transformation

On-chip optical mode exchange using tapered directional coupler

We present an on-chip optical mode exchange between two multiplexed modes by using tapered directional couplers on silicon-on-insulator platform. The device consisting of mode multiplexing and mode exchange is compact with relatively large fabrication error tolerance. The simulation results show efficient higher order mode excitation and mode exchange. A low excess loss less than 0.5 dB and hig...

Transformation-designed optical elements.

We describe transformation design of optical elements which, in addition to image transfer, perform useful operations. For one class of operations, including translation, rotation, mirroring and inversion, an image can be generated that is ideal in the sense of the perfect lens (combining both near- and far-field components in a flat, unit transfer function, up to the limits imposed by material...

Wavelength-independent coupler from fiber to an on-chip cavity, demonstrated over an 850nm span.

A robust wide band (850 nm) fiber coupler to a whispering-gallery cavity with ultra-high quality factor is experimentally demonstrated. The device trades off ideality for broad-band, efficient input coupling. Output coupling efficiency can remain high enough for practical applications wherein pumping and power extraction must occur over very broad wavelength spans.

Efficient quantum dot single photon extraction into an optical fiber using a nanophotonic directional coupler

M. Davanço, 2, ∗ M. T. Rakher, W. Wegscheider, D. Schuh, A. Badolato, and K. Srinivasan Center for Nanoscale Science and Technology, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA Maryland NanoCenter, University of Maryland, College Park, MD 20742, USA Institute for Experimental and Applied Physics, University of Regensburg, D-93053 Regensburg, Germany Department of...

Vibration Analysis of an Optical Fiber Coupler Using the Differential Quadrature Method