Featured Research

from universities, journals, and other organizations

Magneto-optical nonreciprocal devices in silicon photonics

Date:
January 8, 2014
Source:
National Institute for Materials Science
Summary:
In a paper published, researchers demonstrated the first optical isolator on silicon waveguide platforms.

As the recent demand for optical interconnections is increased, much attention has been paid to silicon photonics because of the small device footprint and CMOS compatible process. An optical isolator is essential for protecting optical active devices from reflected light even in short-distance transmission systems.

Related Articles


However, the bottleneck of integrated optical isolator lies in difficulty in growing magneto-optical garnet crystals on commonly used optical waveguide platforms such as silicon.

Yuya Shoji and Tetsuya Mizumoto of Tokyo Institute of Technology, approached the problem using a direct bonding technique which realizes direct contact of different materials. The authors have demonstrated the first optical isolator on silicon waveguide platforms.

In this paper published in Science and Technology of Advanced Materials, they describe the direct bonding, design of the waveguide isolator, and recent progress on a silicon isolator with an optical isolation of 30 dB and a four port optical circulator. They also introduce approaches done by other research groups in the paper.

Compared to the state-of-the-art deposition approach, the bonding technique is advantageous because a single-crystalline magneto-optical garnet having a large magneto-optical effect can be used.


Story Source:

The above story is based on materials provided by National Institute for Materials Science. Note: Materials may be edited for content and length.


Journal Reference:

  1. Yuya Shoji, Tetsuya Mizumoto. Magneto-optical non-reciprocal devices in silicon photonics. Science and Technology of Advanced Materials, 2014; 15 (1): 014602 DOI: 10.1088/1468-6996/15/1/014602

Cite This Page:

National Institute for Materials Science. "Magneto-optical nonreciprocal devices in silicon photonics." ScienceDaily. ScienceDaily, 8 January 2014. <www.sciencedaily.com/releases/2014/01/140108170517.htm>.
National Institute for Materials Science. (2014, January 8). Magneto-optical nonreciprocal devices in silicon photonics. ScienceDaily. Retrieved April 19, 2015 from www.sciencedaily.com/releases/2014/01/140108170517.htm
National Institute for Materials Science. "Magneto-optical nonreciprocal devices in silicon photonics." ScienceDaily. www.sciencedaily.com/releases/2014/01/140108170517.htm (accessed April 19, 2015).

Share This


More From ScienceDaily



More Matter & Energy News

Sunday, April 19, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

At Least 15 Injured in a California Natural Gas Pipeline Explosion

At Least 15 Injured in a California Natural Gas Pipeline Explosion

Reuters - US Online Video (Apr. 18, 2015) At least 15 injred after natural gas transmission line ruptures in Fresno, California. Julie Noce reports. Video provided by Reuters
Powered by NewsLook.com
NASA Electric Rover Goes for a Spin

NASA Electric Rover Goes for a Spin

Reuters - Innovations Video Online (Apr. 17, 2015) NASA&apos;s prototype electric buggy could influence future space rovers and conventional cars. Jim Drury reports. Video provided by Reuters
Powered by NewsLook.com
Scientists Create Self-Powering Camera

Scientists Create Self-Powering Camera

Reuters - Innovations Video Online (Apr. 17, 2015) American scientists build a self-powering camera that captures images without using an external power source, allowing it to operate indefinitely in a well-lit environment. Elly Park reports. Video provided by Reuters
Powered by NewsLook.com
The State Of Virtual Reality

The State Of Virtual Reality

Newsy (Apr. 17, 2015) Virtual Reality is still a young industry. What’s on offer and what should we expect from our immersive new future? Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins