Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Journal of Lightwave Technology
  • Vol. 24,
  • Issue 6,
  • pp. 2287-
  • (2006)

Hybrid Fiber Amplifiers Consisting of Cascaded TDFA and EDFA for WDM Signals

Not Accessible

Your library or personal account may give you access

Abstract

The detailed gain characteristics of hybrid fiber amplifiers that consist of cascaded thulium-doped fiber amplifiers (TDFAs) and erbium-doped fiber amplifiers (EDFAs) are reported. The experimental results showed that the hybrid amplifiers have gains of over 20 dB with the bandwidth of more than 80 nm in the wavelength range between 1460 and 1560 nm. The low noise figure (NF) below 7 dB was obtained in 1460-1540 nm when placing a TDFA in the first stage followed by an EDFA and in 1480-1560 nm when placing amplifiers in a reversed order. The gain of TDFA and EDFA was optimized for minimizing the gain variation ratio (GVR = (maximum gain -minimum gain)/minimum gain: in the unit of decibels) of the hybrid amplifiers, and it could be minimized to less than 0.4 for the amplifiers that have gain in the wavelength region from 1460 to 1537 nm. The gain-equalization technique was applied, and the hybrid amplifier that had an average gain of 20 dB, a gain excursion of less than 2 dB, an output power of 14.5 dBm, and an NF of less than 7 dB in the 77-nm gain band was achieved.

© 2006 IEEE

PDF Article
More Like This
Raman/EDFA hybrid bidirectional amplifier for fiber-optic time and frequency synchronization

Kuanlin Mu, Zhuoze Zhao, Zhengkang Wang, Jianmin Shang, Song Yu, and Yaojun Qiao
Opt. Express 29(5) 6356-6367 (2021)

WDM burst mode signal amplification by cascaded EDFAs with transient control

Toru Yoshikawa, Kazuro Okamura, Eisuke Otani, Takeo Okaniwa, Tatsuji Uchino, Masaru Fukushima, and Nobuyuki Kagi
Opt. Express 14(11) 4650-4655 (2006)

Transient Link Control Technique Applied to Optical Hybrid Amplifier (EDFA + DFRA) Cascades

Bárbara Dumas and Ricardo Olivares
J. Opt. Commun. Netw. 4(11) 858-864 (2012)

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

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved