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 onchip optical amplifier, which introduces further nonlinear phenomena. Optical coupling has been introduced via back reflection from a cleaveended 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.
Original language | English |
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Pages (from-to) | 2033-2041 |
Number of pages | 9 |
Journal | Optics Express |
Volume | 17 |
Issue number | 3 |
DOIs | |
Publication status | Published - 2 Feb 2009 |