Dr. Qiang Li Profile

Dr. Qiang Li

at Univ of Tokyo

SPIE Involvement:

Author

Publications (1)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 2 April 2020 Presentation + Paper

III-V/Si hybrid optical modulators based on MOS capacitor

Mitsuru Takenaka, Qiang Li, Shuhei Ohno, Frederic Boeuf, Kasidit Toprasertpong, Shinichi Takagi

Proceedings Volume 11364, 1136402 (2020) https://doi.org/10.1117/12.2558305

KEYWORDS: Silicon, Phase shifts, Capacitors, Modulation, Photonic integrated circuits, Hybrid optics, Optical modulators, Integrated optics

Read Abstract +

A Si optical phase shifter is essential for high-speed optical interconnect and efficient computing. However, a Si optical phase shifter based on the free-carrier effect is facing the fundamental difficulty to achieve its modulation bandwidth beyond 100 GHz because of the tradeoff relationship between the modulation efficiency and optical loss. The huge power consumption and slow switching speed of a thermo-optic phase shifter are also issues for programmable photonic integrated circuits for computing. To overcome this obstacle, we have investigated the hybrid integration of III-V semiconductors on Si photonics platform. In particular, we have proposed a III-V/Si hybrid metal-oxide-semiconductor (MOS) capacitor for phase modulation, where an n-type III-V membrane is bonded on a p-type Si waveguide with a gate oxide. A III-V/Si hybrid MOS capacitor enables electrons accumulation at the III-V MOS interface, contributing to efficient and low-loss optical phase modulation owing to the superior electron-induced refractive index change in III-V to in Si. We will review the recent progress of III-V/Si hybrid optical phase shifter based on MOS capacitor for optical communication as well as emerging computing applications.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years