Design of feedback insensitive InP ring laser

T.T.M. Schaijk, van, E.A.J.M. Bente, D. Lenstra

Research output: Contribution to conferencePoster


The optical isolators used to protect semiconductor lasers
against optical feedback cannot be integrated. Therefore
we propose to fabricate a laser that has a strongly reduced
sensitivity to feedback. Simulations show that such a device
can be realized by employing a ring laser in which the
clockwise and counterclockwise modes are not coupled. To
achieve unidirectional lasing, this work proposes to use an
intra cavity weak optical isolator based on two phase modulators
that are driven 90 degrees out of phase. Simulations
show up to 3% of intensity feedback can be tolerated without
any distinguishable effect on the laser light.
Original languageEnglish
Publication statusPublished - 2015
EventSiegman International School on Lasers; 2015-08-02; 2015-08-07 -
Duration: 2 Aug 20157 Aug 2015


ConferenceSiegman International School on Lasers; 2015-08-02; 2015-08-07
OtherSiegman International School on Lasers


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