Share Email Print

Proceedings Paper

Monolithic InP master oscillator power amplifier for free space optical transmissions at 1.5 µm
Author(s): C. Pham; F. Van Dijk; E. Vinet; Y. Robert; O. Parillaud; M. Garcia; A. Larrue; M. Faugeron; A. Rissons
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Interest in free space optical communications has increased in the last decades as it has many advantages over RF communications, especially for space-borne applications. However, high power, good spectral quality and beam quality are needed for efficient data transmission over long distances. To meet the need of having lightweight and compact laser sources with such qualities for FSO, semiconductor based MOPA systems (Master Oscillator Power Amplifier) have been developed. In this paper we present the experimental results and compare them to simulation results for a threesection monolithically integrated semiconductor Master Oscillator Power Amplifier emitting at 1.5 μm wavelengths, designed for LIDAR applications that can also be used for free space telecommunications. The MOPA includes a distributed feedback laser section for single mode light emission, an intermediate section for data modulation and a flared semiconductor optical amplifier section for power amplification, which allows us to generate a high power beam with good spectral characteristics. The impact of bias conditions of the different device sections and device design on performances have been studied. Single mode operation at 4 different wavelengths near 1550 nm is achieved for optical output power up to 400 mW in continuous-wave (CW) regime for a SOA current of 3 A and 800 mW for SOA pulsed operation for currents up to 5 A. Near-field profile is also analyzed for different modulator current. Small-signal dynamic response is measured and analyzed.

Paper Details

Date Published: 15 February 2018
PDF: 11 pages
Proc. SPIE 10524, Free-Space Laser Communication and Atmospheric Propagation XXX, 105240W (15 February 2018); doi: 10.1117/12.2286308
Show Author Affiliations
C. Pham, III-V Lab. (France)
F. Van Dijk, III-V Lab. (France)
E. Vinet, III-V Lab. (France)
Y. Robert, III-V Lab. (France)
O. Parillaud, III-V Lab. (France)
M. Garcia, III-V Lab. (France)
A. Larrue, III-V Lab. (France)
M. Faugeron, III-V Lab. (France)
A. Rissons, ISAE Supaéro (France)

Published in SPIE Proceedings Vol. 10524:
Free-Space Laser Communication and Atmospheric Propagation XXX
Hamid Hemmati; Don M. Boroson, Editor(s)

© SPIE. Terms of Use
Back to Top