Matches 1 - 9 out of 9


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US20060133826 Adaptive receiver for APD based modules  
An apparatus for protecting an optical receiver from high power optical signals is disclosed. The apparatus generally includes an optical receiver and a semiconductor optical device configured to...
US20070071457 Optical receiver device  
A DQPSK receiver extracts first and second phase modulation components from an input optical signal, and respectively converts the extracted components into the first and second data signals. The...
US20120128370 Optical Hetrodyne Devices  
An optical heterodyne device includes an optical meta-material exhibiting non-linear behavior. The optical meta-material mixes an input signal and a local signal to produce a heterodyne signal.
US20120308237 MITIGATING NOISE AND OBI IN RFOG NETWORKS  
A bi-directional optical transceiver includes multiple single mode optical ports and a multi-mode optical port. A multi-mode optical combiner combines single mode optical signals received at the...
US20120281990 OPTICAL RECEIVER CONFIGURABLE TO ACCOMMODATE A VARIETY OF MODULATION FORMATS  
The present invention provides a simple means of demodulating optical signals, e.g. wideband M-ary orthogonal. The demodulator comprises an optical processor and a comparison module. The optical...
US20140023381 Non-Linear Optical Receiver  
A method and apparatus for optical communication. A plurality of optical signals having a plurality of different frequencies is received at a receiver. The plurality of optical signals received at...
US20120219294 DIGITAL SIGNAL-TO-SIGNAL BEAT NOISE REDUCTION FOR FILTER-LESS COHERENT RECEIVING SYSTEM  
Systems and methods are disclosed for a filter-less coherent receiving system with a filter-less coherent receiver frontend; a signal-signal beat-noise detector coupled to the filter-less coherent...
US20170170909 ACHIEVING ULTRA-HIGH RESOLUTION HETERODYNE SYNTHETIC IMAGING ACROSS MULTIPLE PLATFORMS USING OPTICAL FREQUENCY COMB SOURCES  
A system that performs heterodyne optical imaging across multiple platforms gathers an optical signal from an optical sensor at each of the multiple platforms. At the same time, an optical...
US20160036535 HIGH EFFICIENCY COHERENT IMAGER  
An extended field heterodyne detection apparatus comprises a local signal oscillator, a micro-lens array set in optical relation to the local signal oscillator to multiplex a beam from the local...
Matches 1 - 9 out of 9