Mutual optical injection in coupled DBR laser pairs.
We report an experimental study of nonlinear effects, characteristic of mutual optical coupling, in an ultra-short coupling regime observed in a distributed Bragg reflector laser pair fabricated on the same chip. Optical feedback is amplified via a double pass through a common on-chip optical amplifier, which introduces further nonlinear phenomena. Optical coupling has been introduced via back reflection from a cleave-ended fibre. The coupling may be varied in strength by varying the distance of the fibre from the output of the chip, without significantly affecting the coupling time.
Vaughan
M P
MP
School of Computer Science and Electronic Engineering, University of Essex, Colchester, UK.
Henning
I
I
Adams
M J
MJ
Rivers
L J
LJ
Cannard
P
P
Lealman
I F
IF