Dr. Xinxiang Niu Profile

Dr. Xinxiang Niu

at Zhejiang Univ.

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 | 27 November 2024 Poster + Paper

First experimental demonstration of highly scalable and reconfigurable optical convolution computing based on wavelength routing

Jialin Cheng, Chong Li, Jun Dai, Yayan Chu, Xinxiang Niu, Xiaowen Dong, Jian-Jun He

Proceedings Volume 13237, 132370X (2024) https://doi.org/10.1117/12.3033716

KEYWORDS: Convolution, Optical computing, Geometrical optics, Waveguides, Field programmable gate arrays, Data transmission, Modulators, Integrated optics, Reconfigurable computing, Matrices

Read Abstract +

A highly scalable and reconfigurable optical convolution paradigm based on wavelength routing is proposed, which leverages the unique sliding property of an arrayed waveguide grating router (AWGR) to execute the sliding window operation of convolution in the wavelength-space domains. By directly loading two input vectors onto two modulator arrays, the convolution result is instantaneously generated at a photodetector array at the speed of light propagation. This enables the entire convolution computation to be executed within one clock cycle, eliminating the necessity for preprocessing or decomposition into elementary MAC operations. The proposed optical convolution unit (OCU) has striking advantages of high scalability, high speed, and processing simplicity compared to those based on optical matrix-vector multipliers (MVM). A proof-of-concept experiment employing standalone optical components is devised to validate optical convolution computing principles with one-bit accuracy. The classification of ten handwritten digit classes sourced from the MNIST database is experimentally demonstrated, achieving a precision of 4-bit. New algorithms for data splitting and reorganization were concurrently introduced to facilitate the convolution calculation of two-dimensional image data. Notably, through Field-Programmable Gate Array (FPGA) across varying data transmission speeds of 1MHz, 5MHz, and 10MHz, inference accuracy rates of 97.32%, 96.25%, and 94.50% were respectively achieved, demonstrating the robustness and versatility of the proposed paradigm.

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