Optical transmitter arrangement, comprising - an optical transmission unit (OTU1, OTU2) operable to generate an optical signal comprising a first signal component having a polarization state that lies within a first polarization plane and furthermore comprising a second signal component having a polarization state that lies within a second polarization plane orthogonal to said first polarization plane, - a series connection comprising a first polarization rotator, an optical waveguide, a wavelength selection unit, a second polarization rotator and a mirror, wherein said optical transmission unit (OTU1, OTU2) and said mirror form a cavity, wherein said series connection is configured - to provide a reflected fraction of said first signal component (RSF11') to said optical transmission unit (OTU1, OTU2) such that its polarization state lies within said first polarization plane, - and furthermore to provide a reflected fraction of said second signal component (RSF12') to said optical transmission unit (OTU1, OTU2) such that its polarization state lies within said second polarization plane, characterized in that said optical transmission unit (OTU1, OTU2) comprises - a first reflective SOA and a polarization beam splitter, configured in combination to generate said first signal component, - a second reflective SOA and a polarization modifying device, configured in combination with said polarization beam splitter to generate said second signal component, wherein said polarization beam splitter and said polarization modifying device are furthermore configured in combination to provide - said reflected fraction of said first signal component (RSF11') to said first SOA such that its polarization state lies within said first polarization plane, - and to provide said reflected fraction of said second signal component (RSF12') to said second SOA such that its polarization state lies within said first polarization plane. - an optical transmission unit (OTU1, OTU2) operable to generate an optical signal comprising a first signal component having a polarization state that lies within a first polarization plane and furthermore comprising a second signal component having a polarization state that lies within a second polarization plane orthogonal to said first polarization plane, - a series connection comprising a first polarization rotator, an optical waveguide, a wavelength selection unit, a second polarization rotator and a mirror, - to provide a reflected fraction of said first signal component (RSF11') to said optical transmission unit (OTU1, OTU2) such that its polarization state lies within said first polarization plane, - and furthermore to provide a reflected fraction of said second signal component (RSF12') to said optical transmission unit (OTU1, OTU2) such that its polarization state lies within said second polarization plane, - a first reflective SOA and a polarization beam splitter, configured in combination to generate said first signal component, - a second reflective SOA and a polarization modifying device, configured in combination with said polarization beam splitter to generate said second signal component, - said reflected fraction of said first signal component (RSF11') to said first SOA such that its polarization state lies within said first polarization plane, - and to provide said reflected fraction of said second signal component (RSF12') to said second SOA such that its polarization state lies within said first polarization plane.