Mr. Jiang Zhou Profile

Jiang Zhou

at Guilin University of Electronic Technology

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 | 23 August 2011 Paper

Method of coherent detection with a shared line based on acousto-optic deflection

Jiang Zhou, Ning He, Xin Liao

Proceedings Volume 8192, 81923F (2011) https://doi.org/10.1117/12.900948

KEYWORDS: Acousto-optics, Signal detection, Diffraction, Signal processing, Ultrasonics, Telecommunications, Receivers, Light sources, Light, Optical communications

Read Abstract +

In the conventional coherent detection method, almost all the techniques of splitting and combining homologous light source have been adopted, as a result of which the coaxial adjustment of signal and reference light becomes quite complex and the energy utilization is rather low. This paper presents a new coherent detection method with a shared line based on acousto-optic deflection. By the way of analyzing the optical structure and the principle of frequency measurement, it proposes basic measures and solutions to improving the system's accuracy and resolution of instantaneous frequency measurement. Best use has been made of the characteristics of the diffracted spots so as to optimize the optical path structure and to make the effective superposition of 0 level spot and 1 level diffracted spot, thus realizing the tracking and measurement of electromagnetic spectrum signal. Experiments show that application of the acousto-optic signal processing method in coherent detection can overcome the contradiction between the frequency resolution and the instantaneous bandwidth of traditional communication receiver and meet the demands of the communication system to high intercepted probability, large instantaneous bandwidth, as well as rapid measurement of pulse. In comparison with the conventional coherent detection method, this method can make the power of light source reduce by 50%, and receiver's sensitivity much better than -65dBm, and then the intercept probability reached up to 100%. Moreover, the frequency resolution is better than 100KHz.All this can achieve the seamless measurement of carrier frequency.

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