Endless polarization control for optical heterodyne or...

Details Endless polarization control for optical heterodyne or... Endless polarization control for optical heterodyne or...

H - Electricity

04

B

325/1

H04B 10/00 (2006.01) H04B 10/148 (2006.01)

Patent

CA 1307029

PHN 12.270 23-11-1987 ABSTRACT: "Device for optical heterodyne or homodyne detection of an optical signal beam and receiver provided with such a device." A device for optical heterodyne detection is described, using only two adjustable elements influencing the state of polarisation and having a limited control range (51, 52) in order to realize an endless polarisation control. In a first embodiment a temporary loss of signal intensity of at most 3 dB is accepted. This signal loss is avoided if a circuit of non-adjustable optical components (81, 82, 83) is incorporated in the heterodyne detection device. Figure 1.

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