Abstract: According to one aspect, the invention relates to a device (200) for transporting and controlling light beams comprising a light guide (40) comprising a bundle (50) of uncoupled single-mode optical fibers (Fi), each single-mode optical fiber (Fi) being intended to receive an elementary light beam (B1i) at a proximal end and to emit a light beam (B2i) at a distal end, said bundle of single-mode optical fibers comprising, in operation, a minimum radius of curvature corresponding to a maximum curvature of the bundle of fibers.

Abstract: According to one aspect, the invention relates to a device (200) for transporting and controlling light beams comprising a light guide (40) comprising a bundle (50) of uncoupled single-mode optical fibers (Fi), each single-mode optical fiber (Fi) being intended to receive an elementary light beam (B1i) at a proximal end and to emit a light beam (B2i) at a distal end, said bundle of single-mode optical fibers comprising, in operation, a minimum radius of curvature corresponding to a maximum curvature of the bundle of fibers.

Abstract: According to one aspect, the invention concerns a device for transporting and controlling light pulses for lensless endo-microscopic imaging and comprises: a bundle of N monomode optical fibers (Fi) arranged in a given pattern, each monomode optical fiber being characterized by a relative group delay value (Ax) defined relative to the travel time of a pulse propagating in a reference monomode optical fiber (F0) of the bundle of fibers (40), an optical device for controlling group velocity (50) comprising a given number M of waveplates (Pj) characterized by a given delay (8tj); a first spatial light modulator (51) suitable for forming from an incident light beam a number N of elementary light beams (Bi) each of which is intended to enter into one of said optical fibers, each elementary beam being intended to pass into a given waveplate such that the sum of the delay introduced by said waveplate and the relative group delay of the optical fiber intended to receive said elementary light beam is minimal in abs

Abstract: According to one aspect, the present description relates to a system for high resolution imaging of an object comprising a fiber bundle (1) comprising an array of optical fiber cores (A), said fiber bundle being adapted to receive a plurality of light beams issued from spatially incoherent point sources of an object; the system further comprises a two-dimensional detector (240) with a detection plane, located at a proximal end of the fiber bundle, adapted to receive speckle patterns, each speckle pattern resulting from the transmission of one of said light beams through at least a plurality of the fiber bundle cores, the ensemble of speckle patterns detected by the two-dimensional detector forming a multiple speckles image; and a processing unit (250) adapted to determine an image of the object from said multiple speckles image.

Abstract: According to one aspect, the invention concerns a device for transporting and controlling light pulses for lensless endo-microscopic imaging and comprises: a bundle of N monomode optical fibers (F1) arranged in a given pattern, each monomode optical fiber being characterized by a relative group delay value (Ax) defined relative to the travel time of a pulse propagating in a reference monomode optical fiber (F0) of the bundle of fibers (40), an optical device for controlling group velocity (50) comprising a given number M of waveplates (Pj) characterized by a given delay (8tj); a first spatial light modulator (51) suitable for forming from an incident light beam a number N of elementary light beams (Bi) each of which is intended to enter into one of said optical fibers, each elementary beam being intended to pass into a given waveplate such that the sum of the delay introduced by said waveplate and the relative group delay of the optical fiber intended to receive said elementary light beam is minimal in abs

Abstract: According to one aspect, the invention relates to a device for detecting a resonant non-linear optical signal of Stimulated Raman Scattering (SRS) type induced in a sample. The device comprises electro-optical means for making interact in the sample, at a first modulation frequency, trains of light pulses of angular frequencies ?1 and ?2 and, at a second modulation frequency, trains of light pulses of angular frequencies ?2 and ?3, such that ?2??1=?3??2=?R where ?R is a molecular vibrational resonant angular frequency of the sample. Moreover, the device comprises means for synchronous detection at the first and second modulation frequencies of non-linear optical signals resulting from the interaction of the light pulses in the sample, and electronic processing means making it possible to obtain, from electronic signals resulting from the synchronous detection, a signal characterizing the molecular vibrational resonance of the sample.

Abstract: According to one aspect, the invention relates to a device for detecting a resonant non-linear optical signal of Stimulated Raman Scattering (SRS) type induced in a sample. The device comprises electro-optical means for making interact in the sample, at a first modulation frequency, trains of light pulses of angular frequencies ?1 and ?2 and, at a second modulation frequency, trains of light pulses of angular frequencies ?2 and ?3, such that ?2??1=?3??2=?R where ?R is a molecular vibrational resonant angular frequency of the sample. Moreover, the device comprises means for synchronous detection at the first and second modulation frequencies of non-linear optical signals resulting from the interaction of the light pulses in the sample, and electronic processing means making it possible to obtain, from electronic signals resulting from the synchronous detection, a signal characterizing the molecular vibrational resonance of the sample.