 |
ECOLE SUPÉRIEURE D'ÉLECTRICITÉ Une grande école d'ingénieurs au cœur des sciences de l'information,de l'énergie et des systèmes |
 |
Journal articles
High-Power, Low RIN 1.55-μm Directly Modulated DFB Lasers for Analog Signal Transmission
Abstract : We report the demonstration of high-power and low relative intensity noise (RIN) directly modulated distributed feedback lasers at 1.55 μm. We have developed a structure with asymmetrical cladding to reduce internal losses due to the p-doped upper cladding. We obtain an output power of 140 mW at 550 mA and an RIN below −157 dB/Hz in the 0.1-20 GHz range along with a high side-mode suppression ratio (>55 dB). The modulation bandwidth was larger than 7 GHz. The characteristics of these lasers, namely a high electrical to optical conversion efficiency (0.340 W/A at 350 mA), low noise, high power (98 mW at 350 mA), and linearity, make them the perfect candidates for high gain, high dynamic directly modulated analog links.
https://hal-supelec.archives-ouvertes.fr/hal-00731221
Contributor : Sébastien van Luchene Connect in order to contact the contributor
Submitted on : Wednesday, September 12, 2012 - 12:14:22 PM
Last modification on : Tuesday, June 15, 2021 - 4:04:36 PM
Contributor : Sébastien van Luchene Connect in order to contact the contributor
Submitted on : Wednesday, September 12, 2012 - 12:14:22 PM
Last modification on : Tuesday, June 15, 2021 - 4:04:36 PM