Non-selective photoreceiver for frequency-modulated optical signals and optical link using said receiver

Abstract

A non-selective photoreceiver for frequency-modulated optical signals and optically using the receiver. The photoreceiver includes a laser operating under longitudinal multimode conditions, such as a FABRY-PEROT-type laser operating in a longitudinal multimode. The photoreceiver can function around any one of the longitudinal modes of the laser in overlapping frequency ranges, providing a wide overall band of operation. The plurality of modes reduces the selectively of the photoreceiver. The invention is also related to an optical link, which is either unidirectional using a photoreceiver as described above, or using two subassemblies each having a photoreceiver according to the invention, each photoreceiver being able to operate in an emission or a reception mode.

Dependencies are inferred from the claim text.