BER performance of multimode fiber low-frequency passbands in subcarrier multiplexing transmission

Jaruwat Patmanee; Chairat Pinthong; Surachet Kanprachar

doi:10.1117/12.2299334

5 March 2018 BER performance of multimode fiber low-frequency passbands in subcarrier multiplexing transmission

Jaruwat Patmanee, Chairat Pinthong, Surachet Kanprachar

Proceedings Volume 10714, Third International Conference on Photonics Solutions (ICPS2017); 1071405 (2018) https://doi.org/10.1117/12.2299334
Event: Third International Conference on Photonic Solutions, 2017, Pattaya, Thailand

Abstract

Multimode fibers are normally known to have a channel for carrying a signal mainly by their 3-dB modal bandwidth ranging between 200 to 500 MHz-km, depending on the material and structure of the fiber. To use only this 3-dB modal bandwidth, a higher data rate signal cannot be successfully transmitted. Alternatively, it has been shown that the response of the multimode fibers at low-frequency region, defining as the frequency next to the 3-dB modal band, contains many passbands. Additionally, these low-frequency passbands have been shown to be predictable in terms of their peak frequencies; thus, suitable subcarrier frequencies can be obtained and used in SCM system. In this paper, the formula from the previous work for determining the peak frequency of all 6 low-frequency passbands is applied. These 6 passbands and the 3-dB modal band of the multimode fiber are used to convey a high data rate signal. The signal is separated into 7 subcarrier signals and transmitted over these 7 channels using SCM system. The performance of the received signal in terms of the bit-error-rate (BER) is determined and shown. Some modification and adjustment are done in order to improve the performance of the system. It is found that for a multimode fiber with a 200-MHz 3-dB modal bandwidth, a 500-Mbps data rate signal can be successfully transmitted with a BER of lower than 10^-6 . The data rate transmitted over a multimode fiber can be increased 2.5 times comparing to the 3-dB modal bandwidth, without any coding technique applied.

Citation Download Citation

Jaruwat Patmanee, Chairat Pinthong, and Surachet Kanprachar "BER performance of multimode fiber low-frequency passbands in subcarrier multiplexing transmission", Proc. SPIE 10714, Third International Conference on Photonics Solutions (ICPS2017), 1071405 (5 March 2018); https://doi.org/10.1117/12.2299334

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