Title :
Reflection suppression by orthogonal modes
Author :
von Helmolt, C.H.
Author_Institution :
Heinrich-Hertz-Inst. fur Nachrichtentech., Berlin, West Germany
fDate :
4/1/1989 12:00:00 AM
Abstract :
A method is proposed where isolation of a single-frequency laser from reflections of an optical network is obtained using reciprocal elements throughout. The principle is based on the isolation obtained by a double transit quarter-wave plate, which can be generalized. Only linearity and time invariance are required. Thus the network elements can even be nonreciprocal. An application is the isolation of the local-oscillator laser in an integrated optical heterodyne/homodyne receiver
Keywords :
integrated optics; laser accessories; laser beams; laser frequency stability; light reflection; optical elements; receivers; double transit quarter-wave plate; integrated optical heterodyne/homodyne receiver; integrated optics; local-oscillator laser; optical network; reciprocal elements; reflection suppression; single-frequency laser; Frequency; Integrated optics; Light scattering; Local oscillators; Optical fiber networks; Optical fiber polarization; Optical receivers; Optical scattering; Reflection; Symmetric matrices;
Journal_Title :
Lightwave Technology, Journal of
