All-optical NRZ-to-RZ data format conversion with optically injected laser diode or semiconductor optical amplifier

Gong-Ru Lin; Yung-Cheng Chang; Kun-Chieh Yu

doi:10.1117/12.685634

3 October 2006 All-optical NRZ-to-RZ data format conversion with optically injected laser diode or semiconductor optical amplifier

Gong-Ru Lin, Yung-Cheng Chang, Kun-Chieh Yu

Author Affiliations +

Proceedings Volume 6353, Optical Transmission, Switching, and Subsystems IV; 63532E (2006) https://doi.org/10.1117/12.685634
Event: Asia-Pacific Optical Communications, 2006, Gwangju, South Korea

Abstract

By injecting the optical NRZ data into a Fabry-Perot laser diode (FPLD) synchronously modulated at below threshold condition or a semiconductor optical amplifier (SOA) gain-depleted with a backward injected clock stream, the all-optical non-return to zero (NRZ) to return-to-zero (RZ) format conversion of a STM-64 date-stream for synchronous digital hierarchy (SDH) or an OC-192 data stream for synchronous optical network (SONET) in high-speed fiber-optic communication link can be performed. Without the assistance of any complicated RF electronic circuitry, the output RZ data-stream at bit rate of up to 10 Gbit/s is successfully transformed in the optically NRZ injection-locked FPLD, in which the incoming NRZ data induces gain-switching of the FPLD without DC driving current or at below threshold condition. A power penalty of 1.2 dB is measured after NRZ-to-RZ transformation in the FPLD. Alternatively, the all-optical 10Gbits/s NRZ-to-RZ format conversion can also be demonstrated in a semiconductor optical amplifier under a backward dark-optical-comb injection with its duty-cycle 70%, which is obtained by reshaping from the received data clock at 10 GHz. The incoming optical NRZ data-stream is transformed into a pulsed RZ data-stream with its duty-cycle, rms timing jitter, and conversion gain of 15%, 4ps, and 3dB, respectively. In contrast to the FPLD, the SOA based NRZ-to-RZ converter exhibits an enhanced extinction ratio from 7 to 13 dB, and BER of 10^-13 at -18.5 dBm. In particular, the power penalty of the received RZ data-stream has greatly improved by 5 dB as compared to that obtained from FPLD.

Citation Download Citation

Gong-Ru Lin, Yung-Cheng Chang, and Kun-Chieh Yu "All-optical NRZ-to-RZ data format conversion with optically injected laser diode or semiconductor optical amplifier", Proc. SPIE 6353, Optical Transmission, Switching, and Subsystems IV, 63532E (3 October 2006); https://doi.org/10.1117/12.685634

ACCESS THE FULL ARTICLE

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: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
13 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Data conversion

Modulation

Semiconductor lasers

Optical amplifiers

Semiconductor optical amplifiers

Clocks

Picosecond phenomena

Show All Keywords

Keywords/Phrases

Search In:

Publication Years