Electro-optical device comprising a controlled laser diode

An interferometer comprising an electro-optical device including a laser diode having a front face, a lens, an optical fiber, and a control module for controlling said laser diode, said laser diode emitting from said front face a light beam traversing said lens to constitute an operating light beam, at least part of the light emitted by said laser diode constituting a controlling light beam, said controlling light beam being conveyed by said optical fiber to said control module, said control module using said controlling light beam to determine at least one operating parameter of said laser diode, and said optical fiber being coupled to said laser module for collecting part of the light reflected and diffused by said lens, wherein the optical path between said laser diode and said control module comprises no beam-splitting element, said operating light beam being used to carry out a measurement, and said operating light beam passing after the lenses through discrete optical components disaligned with respect to the optical axis for limiting the feedback in the laser diode.

An atomic oscillator comprising an electro-optical device including a laser diode having a front face, a lens, an optical fiber, and a control module for controlling said laser diode, said laser diode emitting from said front face a light beam traversing said lens to constitute an operating light beam, at least part of the light emitted by said laser diode constituting a controlling light beam, said controlling light beam being conveyed by said optical fiber to said control module, said control module using said controlling light beam to determine at least one operating parameter of said laser diode, and said optical fiber being coupled to said laser module for collecting part of the light reflected and diffused by said lens, wherein the optical path between said laser diode and said control module comprises no beam-splitting element, said operating light beam being used to carry out a measurement, and said operating light beam passing after the lenses through discrete optical components disaligned with respect to the optical axis for limiting the feedback in the laser diode, wherein said operating light beam is used for optically pumping a resonance cell.

A spectroscope comprising an electro-optical device including a laser diode having a front face, a lens, an optical fiber, and a control module for controlling said laser diode, said laser diode emitting from said front face a light beam traversing said lens to constitute an operating light beam, at least part of the light emitted by said laser diode constituting a controlling light beam, said controlling light beam being conveyed by said optical fiber to said control module, said control module using said controlling light beam to determine at least one operating parameter of said laser diode, and said optical fiber being coupled to said laser module for collecting part of the light reflected and diffused by said lens, wherein the optical path between said laser diode and said control module comprises no beam-splitting element, said operating light beam being used to carry out a measurement, and said operating light beam passing after the lenses through discrete optical components disaligned with respect to the optical axis for limiting the feedback in the laser diode.

A transmitter transmitting over fiber optics, comprising an electro-optical device including a laser diode having a front face, a lens, an optical fiber, and a control module for controlling said laser diode, said laser diode emitting from said front face a light beam traversing said lens to constitute an operating light beam, at least part of the light emitted by said laser diode constituting a controlling light beam, said controlling light beam being conveyed by said optical fiber to said control module, said control module using said controlling light beam to determine at least one operating parameter of said laser diode, and said optical fiber being coupled to said laser module for collecting part of the light reflected and diffused by said lens, wherein the optical path between said laser diode and said control module comprises no beam-splitting element, further comprising a second optical fiber coupled to said laser module, said operating light beam being conveyed by said second optical fiber and being used to carry out a transmission.

A lidar comprising an electro-optical device including a laser diode having a front face, a lens, an optical fiber, and a control module for controlling said laser diode, said laser diode emitting from said front face a light beam traversing said lens to constitute an operating light beam, at least part of the light emitted by said laser diode constituting a controlling light beam, said controlling light beam being conveyed by said optical fiber to said control module, said control module using said controlling light beam to determine at least one operating parameter of said laser diode, and said optical fiber being coupled to said laser module for collecting part of the light reflected and diffused by said lens.