Optical frequency synthesizer/sweeper

Telecommunications – Receiver or analog modulated signal frequency converter – Signal selection based on frequency

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455618, 370 3, H04B 900

Patent

active

048933538

ABSTRACT:
An optical frequency synthesizer and/or sweeper, whereby a coherent optical output light is obtained by using a wavelength stabilized laser and an optical phase locked loop wherein the frequency of the output has the characteristics of high accuracy, high stability and narrow spectral line width. The optical phase locked loop comprises a tunable laser, an optical frequency multiplier, an optical frequency shifter and an optical heterodyne detector, wherein the optical phase locked loop is capable of precisely outputting an arbitrary wavelength by feeding back an output optical frequency.

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