Abstract
We report a self-injection-locked InAs/InP quantum-dash tunable laser with ∼11 nm (∼1602-1613 nm) tuning window for next generation multiuser ultrahigh capacity fiber/free-space optics (FSO)/hybrid fiber-FSO-based optical networks. A tunability of >18 independently locked subcarriers with ∼28 dB side mode suppression ratio (SMSR) and stable (±0.1 dBm) mode power is exhibited, and an estimated small injection ratio of ∼-22 dBm is found to sustain locking and SMSR. Error free transmission of 100 and 128 Gb/s externally modulated dual-polarization quadrature phase shift keying (DP-QPSK) signals over 20 km single mode fiber (SMF) and 16 m indoor FSO links are demonstrated across 8 and 4 individual subcarriers, respectively, thus covering the entire tuning range. Moreover, up to 168 (192) Gb/s successful transmission over 10 km SMF (BTB) and 176 Gb/s over 16 m FSO link is achieved on a ∼1610 nm subcarrier. Finally, a 128 Gb/s DP-QPSK transmission over 11 km SMF-8 m FSO-11 km SMF hybrid system is accomplished, thus paving the potential deployment of this single-chip, cost-effective, and energy efficient tunable light source in terabits/s next-generation passive optical networks.
| Original language | English |
|---|---|
| Article number | 7902210 |
| Journal | IEEE Photonics Journal |
| Volume | 10 |
| Issue number | 2 |
| DOIs | |
| State | Published - Apr 2018 |
Bibliographical note
Funding Information:Manuscript received February 16, 2018; accepted February 22, 2018. Date of publication February 27, 2018; date of current version March 30, 2018. This work was supported in part by the King Fahd University of Petroleum and Minerals through Grant KAUST004, in part by the King Saud University through research group RG-1438-092, and in part by KACST-TIC in SSL via Grant EE2381. (M. A. Shemis and E. Alkhazraji contributed equally to this work.) Corresponding author: M. Z. M. Khan (e-mail: [email protected]).
Publisher Copyright:
© 2009-2012 IEEE.
Keywords
- Coherent communication
- hybrid fiber-FSO system.
- optical access networks
- quantum-dash laser diode
- self-injection locking
- tunable laser sources
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering