Abstract

We propose a focusing waveguide mirror with a shallow tapered edge in a slab waveguide and demonstrate it by planar processes and wet etching. A light beam 2 mm wide is focused to 6.5 μm full width at half-maximum at a wavelength of 0.6328 μm. A reflectivity of higher than 90% at the tapered edge is obtained. The inclination ratio of the tapered mirror edge is 1:90. Fairly good correspondence between measured and calculated focused spot sizes is obtained.

© 1994 Optical Society of America

Tapered edge ridge waveguides for integrated optics

T. R. Ranganath, W. T. Tsang, and S. Wang
Appl. Opt. 14(8) 1847-1853 (1975)

Focusing characteristics of a planar solid-immersion mirror

Chubing Peng, Christophe Mihalcea, Kalman Pelhos, and William A. Challener
Appl. Opt. 45(8) 1785-1793 (2006)

Beam propagation in parabolically tapered graded-index waveguides

Anthony A. Tovar and Lee W. Casperson
Appl. Opt. 33(33) 7733-7739 (1994)

Slant-propagation characteristics in tapered optical waveguides: analysis

Kohji Minami, Yoshio Yoshida, and Yukio Kurata
Appl. Opt. 33(34) 8014-8021 (1994)

Optical head employing a concentric-circular focusing grating coupler

Seiji Nishiwaki, Jun-ichi Asada, and Shinji Uchida
Appl. Opt. 33(10) 1819-1827 (1994)