By Topic

Fabrication and coupling-to-fibre characteristics of laser diodes integrated with a spot-size converter having a lateral taper

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $33
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

12 Author(s)
M. Wada ; NTT Opto-Electron. Labs., Kanagawa, Japan ; H. Okamoto ; M. Kohtoku ; K. Kawano
more authors

Laser diodes monolithically integrated with spot-size converters operating at 1.3 μm, and having an almost circular narrow emitted beam, have been successfully fabricated using 2 inch (50.8 mm) full wafer fabrication technology. The spot-size converters consist of a lateral taper, thin-film guiding layer and ridge structure. The epitaxial structure is designed to have wide fabrication tolerance with no deterioration of device characteristics. The investigation of the coupling-loss dependence on the dimension parameters in the spot-size converters confirms that this device has a wide fabrication tolerance for these parameters. Furthermore, butt-coupling loss to fibre as low as -1.3 dB is attained with alignment tolerance wide enough for passive alignment. The overall device is as short as 450 μm, enabling high availability from one wafer

Published in:

IEE Proceedings - Optoelectronics  (Volume:144 ,  Issue: 2 )