Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Journal of Lightwave Technology
  • Vol. 38,
  • Issue 7,
  • pp. 1836-1843
  • (2020)

Modulation of a High Power Semiconductor Optical Amplifier for Free Space Communications

Not Accessible

Your library or personal account may give you access

Abstract

High power Semiconductor Optical Amplifiers (SOA) are often integrated in optical systems such as mode locked lasers, hybrid, or monolithically integrated Master Oscillator Power Amplifiers (MOPA) for applications such as LIDAR systems or free space optical communications. Both these applications require high power and signal modulation, either for data transmission or specific LIDAR adapted signals, which can be provided by either modulating the amplitude of the seed laser or using an external modulator. It is also possible to directly modulate the gain of the SOA by modulating the input current. However, as the input power of the SOA is often high in these configurations (around 1 mW), it operates under the saturation regime. In this article, we present an experimental study of the dynamic characteristics of a two-section high power SOA. DC characteristics for different pump current pairs are measured. The S21 parameter is measured, and a model is proposed to understand and predict the dynamic response of the SOA. The impact of the gain saturation with regards to input power on the behavior of the SOA is investigated by pumping the two sections with different current values. Extinction ratio and eye diagrams are measured in three different configurations with the modulation applied on a seed DFB laser, on the input section, then on the output section of the SOA at 1 Gbps, 2.5 Gbps, and 5 Gbps.

PDF Article
More Like This
Optical coherent combining of high-power optical amplifiers for free-space optical communications

Vincent Billault, Simon Leveque, Anaëlle Maho, Matthew Welch, Jérôme Bourderionnet, Eric Lallier, Michel Sotom, Arnaud Le Kernec, and Arnaud Brignon
Opt. Lett. 48(14) 3649-3652 (2023)

Radiation hardened high-power Er3+/Yb3+-codoped fiber amplifiers for free-space optical communications

Ayoub Ladaci, Sylvain Girard, Luciano Mescia, Arnaud Laurent, Carine Ranger, David Kermen, Thierry Robin, Benoit Cadier, Mathieu Boutillier, Baidy Sane, Emmanuel Marin, Adriana Morana, Youcef Ouerdane, and Aziz Boukenter
Opt. Lett. 43(13) 3049-3052 (2018)

Optical amplitude modulation extinction by a deep saturated ultra-long semiconductor optical amplifier

Napoleão S. Ribeiro, André L. R. Cavacalcante, Cristiano M. Gallep, and Evandro Conforti
Opt. Express 18(26) 27298-27305 (2010)

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