Abstract

We propose and experimentally demonstrate a bidirectional radio-over-fiber (RoF) link based on a Sagnac loop incorporating a polarization modulator (PolM) to generate simultaneously a polarization-modulated optical signal and an unmodulated optical signal for wavelength reuse and for increasing the dynamic range. Thanks to the traveling-wave nature of the PolM, a polarization-modulated optical signal and an unmodulated optical signal are generated at the output of the Sagnac loop, which are combined at a polarizer and detected at a photodetector. By controlling the powers of the two optical signals, the third-order intermodulation distortion terms can be fully suppressed to increase the dynamic range for downstream transmission. The unmodulated optical signal is reused for upstream transmission. A bidirectional RoF link to transmit 2.5 Gb/s 16QAM downstream and upstream signals, and a 7.1 Gb/s 128 subcarrier orthogonal frequency division multiplexing 16QAM downstream and upstream signals using a single wavelength over a 10.5 km single-mode fiber are experimentally demonstrated. The transmission performance versus the dynamic range is also studied.

© 2019 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Two-way lightwave subcarrier transmission system

Ying-Pyng Lin, Chun-Yu Lin, Hai-Han Lu, Po-Yi Wu, Chia-Yi Chen, Sheng-Siang Ruan, and Tai-Wei Jhang
Opt. Lett. 39(7) 1721-1724 (2014)

Wavelength reuse in a bidirectional UWB over fiber system

Tong Shao and Jianping Yao
Opt. Express 21(10) 11921-11927 (2013)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (7)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (7)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription