Abstract

A single-mode fiber with plano–convex silicon microlens is proposed for butt-coupling between single-mode fibers and high-index-contrast waveguides with fine mode-field diameter. The lensed fiber has two specific features, high focusing power, and null working distance. The theoretical focus-spot diameter at the endface of the lensed fiber is calculated to be as small as 0.56μm at a wavelength 1.55μm. A simple fabrication method for the lensed fiber employing chemical etching and rf-sputtering is presented. Experiments showed that the mode-field-diameter of a single-mode fiber was successfully contracted from 10.5 to 1.3μm with the lensed fiber.

© 2008 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
A two-port polarization-insensitive coupler module between single-mode fiber and silicon-wire waveguide

Kazuo Shiraishi, Hidehiko Yoda, and Chen S. Tsai
Opt. Express 20(22) 24370-24375 (2012)

Cantilever couplers for intra-chip coupling to silicon photonic integrated circuits

Peng Sun and Ronald M. Reano
Opt. Express 17(6) 4565-4574 (2009)

Optimization of compact lateral, vertical, and combined tapered spot-size converters by use of the beam-propagation method

Shyqyri Haxha, Emmanuel O. Ladely, Majlinda Mjeku, Fathi AbdelMalek, and B. M. Azizur Rahman
Appl. Opt. 45(2) 288-296 (2006)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (8)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (1)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription