Vaughan MP, Henning I, Adams MJ, Rivers LJ, Cannard P, Lealman IF. Mutual optical injection in coupled DBR laser pairs.
Opt Express 2009;
17:2033-2041. [PMID:
19189034 DOI:
10.1364/oe.17.002033]
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Abstract
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.
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