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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 9 — Apr. 23, 2012
  • pp: 10416–10425

Upstream capacity upgrade in TDM-PON using RSOA based tunable fiber ring laser

Lilin Yi, Zhengxuan Li, Yi Dong, Shilin Xiao, Jian Chen, and Weisheng Hu  »View Author Affiliations


Optics Express, Vol. 20, Issue 9, pp. 10416-10425 (2012)
http://dx.doi.org/10.1364/OE.20.010416


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Abstract

An upstream multi-wavelength shared (UMWS) time division multiplexing passive optical network (TDM-PON) is presented by using a reflective semiconductor amplifier (RSOA) and tunable optical filter (TOF) based directly modulated fiber ring laser as upstream laser source. The stable laser operation is easily achieved no matter what the bandwidth and shape of the TOF is and it can be directly modulated when the RSOA is driven at its saturation region. In this UMWS TDM-PON system, an individual wavelength can be assigned to the user who has a high bandwidth demand by tuning the central wavelength of the TOF in its upgraded optical network unit (ONU), while others maintain their traditional ONU structure and share the bandwidth via time slots, which greatly and dynamically upgrades the upstream capacity. We experimentally demonstrated the bidirectional transmission of downstream data at 10-Gb/s and upstream data at 1.25-Gb/s per wavelength over 25-km single mode fiber (SMF) with almost no power penalty at both ends. A stable performance is observed for the upstream wavelength tuned from 1530 nm to 1595 nm. Moreover, due to the high extinction ratio (ER) of the upstream signal, the burst-mode transmitting is successfully presented and a better time-division multiplexing performance can be obtained by turning off the unused lasers thanks to the rapid formation of the laser in the fiber ring.

© 2012 OSA

OCIS Codes
(060.2330) Fiber optics and optical communications : Fiber optics communications
(140.3600) Lasers and laser optics : Lasers, tunable
(250.5980) Optoelectronics : Semiconductor optical amplifiers

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: January 23, 2012
Revised Manuscript: March 8, 2012
Manuscript Accepted: March 25, 2012
Published: April 20, 2012

Citation
Lilin Yi, Zhengxuan Li, Yi Dong, Shilin Xiao, Jian Chen, and Weisheng Hu, "Upstream capacity upgrade in TDM-PON using RSOA based tunable fiber ring laser," Opt. Express 20, 10416-10425 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-9-10416


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