Ultrafast gain recovery in a QW-SOA and its application for 40&#x2009;&#x2009;Gb/s regenerative format conversion from NRZ-DPSK to RZ-OOK

Tong Cao; Liao Chen; Yu Yu; Xinliang Zhang

doi:10.1364/JOSAB.33.001291

Journal of the Optical Society of America B
Vol. 33,
Issue 6,
pp. 1291-1297
(2016)
•https://doi.org/10.1364/JOSAB.33.001291

Ultrafast gain recovery in a QW-SOA and its application for 40 Gb/s regenerative format conversion from NRZ-DPSK to RZ-OOK

Tong Cao, Liao Chen, Yu Yu, and Xinliang Zhang

Not Accessible

Your library or personal account may give you access

Get PDF
Email
Share
Get Citation
Copy Citation Text
Tong Cao, Liao Chen, Yu Yu, and Xinliang Zhang, "Ultrafast gain recovery in a QW-SOA and its application for 40 Gb/s regenerative format conversion from NRZ-DPSK to RZ-OOK," J. Opt. Soc. Am. B 33, 1291-1297 (2016)

Export Citation
- BibTex
- Endnote (RIS)
- HTML
- Plain Text
Citation alert
Save article

Related Topics
Table of Contents Category
- Optoelectronics
Optics & Photonics Topics
?

The topics in this list come from the Optics and Photonics Topics applied to this article.

About this Article
History
- Original Manuscript: February 8, 2016
- Revised Manuscript: April 18, 2016
- Manuscript Accepted: April 25, 2016
- Published: May 27, 2016

Abstract

We propose a scheme to realize gain recovery of the order of a few picoseconds in a typical quantum well semiconductor optical amplifier (QW-SOA) using a pump signal with amplitude dips. In the scheme, the gain recovery is determined by the fast carrier density depletion and carrier temperature heating processes. The ultrafast gain recovery is numerically verified by a completed model combining the QW band structure calculation with rate equations in the QW-SOA. In practice, a pump signal with amplitude dips can be partly characterized by a non-return-to-zero differential phase-shift keying (NRZ-DPSK) signal generated by a Mach–Zehnder modulator. Therefore, we experimentally demonstrate 40 Gb/s wavelength-converting and regenerative format conversion from NRZ-DPSK to return-to-zero on–off keying (RZ-OOK), which may be a key function to connect different kinds of modulation formats at gateway nodes between long-haul backbone networks and metro area networks.

Full Article | PDF Article

More Like This

All-optical modulation format conversion from NRZ-OOK to RZ-QPSK using parallel SOA-MZI OOK/BPSK converters

Ken Mishina, Suresh M. Nissanka, Akihiro Maruta, Shunsuke Mitani, Kazuyuki Ishida, Katsuhiro Shimizu, Tatsuo Hatta, and Ken-ichi Kitayama
Opt. Express 15(12) 7774-7785 (2007)

All-optical parallel NRZ-DPSK to RZ-DPSK format conversion at 40 Gb/s based on XPM effect in a single SOA

Yu Yu, Bingrong Zou, Wenhan Wu, and Xinliang Zhang
Opt. Express 19(15) 14720-14725 (2011)

Experimental demonstration and devices optimization of NRZ-DPSK amplitude regeneration scheme based on SOAs

Tong Cao, Liao Chen, Yu Yu, and Xinliang Zhang
Opt. Express 22(26) 32138-32149 (2014)

Previous Article Next Article

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 Optica member, or as an authorized user of your institution.

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

Figures (13)

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

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

Tables (1)

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

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

Equations (8)

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

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

Symbol	Quantity	Value
$L$	SOA length	$500 \times 10^{- 6} m$
$W$	SOA width	$1.5 \times 10^{- 6} m$
$D$	SOA depth	$0.2 \times 10^{- 6} m$
$A$	Trapping recombination	$3.5 \times 10^{8} s^{- 1}$
$B$	Bimolecular recombination	$6.8 \times 10^{- 16} m^{3} s^{- 1}$
$C$	Auger recombination	$3.0 \times 10^{- 41} m^{6} s^{- 1}$
$α_{F c}$	Free carrier absorption	$2.0 \times 10^{- 21} m^{2}$
$α_{int}$	internal loss	$2 \times 10^{3} m^{- 1}$
$τ_{T}$	Intraband scatting time	1.5 ps
$Γ$	Optical confinement factor	0.30
$n_{r}$	Refractive index of the QWs	3.6

Abstract

Cited By

Figures (13)

Tables (1)

Equations (8)

Journal of the Optical Society of America B