All-optical edge detector for NRZ signal using a SOA-MZI

Qiwei Weng; Gang Wang; Xuelin Yang; Weisheng Hu

doi:10.1117/12.904097

28 November 2011 All-optical edge detector for NRZ signal using a SOA-MZI

Qiwei Weng; Gang Wang; Xuelin Yang; Weisheng Hu

Author Affiliations +

Proceedings Volume 8308, Optoelectronic Materials and Devices VI; 830807 (2011) https://doi.org/10.1117/12.904097
Event: SPIE/OSA/IEEE Asia Communications and Photonics, 2011, Shanghai, China

Abstract

We propose an all-optical edge detector for the high-speed non-return-to-zero (NRZ) signals by employing a Mach-Zehnder interferometer (MZI) incorporating semiconductor optical amplifiers (SOAs), where the cross phase modulation (XPM) in SOA is exploited. The basic working principle of the proposed edge detector is that the CW probes in the upper and bottom arms always undergo a phase difference of π, except during the leading and tailing transition edges of the NRZ signals. Therefore, the output after the two probes interfering at the constructive port of the MZI will be a series of pulses at only the edges of the NRZ signals. The output signals of the edge detectors are numerically evaluated in terms of the Q factor (>20dB) and extinction ratio (>11dB) at 20 and 40 Gb/s, which indicate the high quality of output.

Citation Download Citation

Qiwei Weng, Qiwei Weng, Gang Wang, Gang Wang, Xuelin Yang, Xuelin Yang, Weisheng Hu, Weisheng Hu, } "All-optical edge detector for NRZ signal using a SOA-MZI", Proc. SPIE 8308, Optoelectronic Materials and Devices VI, 830807 (28 November 2011); doi: 10.1117/12.904097; https://doi.org/10.1117/12.904097

ACCESS THE FULL ARTICLE

PERSONAL SIGN IN
Full access may be available with your subscription

Email or Username Forgot your username?

Password Forgot your password?

Show

Remember Email/Username on this computer

Remember Password

No SPIE account? Create an account
or Institutional Sign In via Shibboleth

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: $14.40

Non-members: $18.00 ADD TO CART

Show All Keywords

Keywords/Phrases

Search In:

Publication Years