Polarization preservation in optical fibers
- Summary
- The invention concerns a device and process for minimizing the polarization deviation of light at the output of a polarization (PM) optical fiber under disruptive influences of temperature, pressure and location changes in the environment.
- Technology Benefits
- Fast modulation of the birefringence of a PM fiber
High-precision polarization preservation at the fiber output
Affordable use on all PM fibers with a fiber sheath
- Technology Application
- The invention relates to a device, a method and the use of the device in quantum optics, quantum information processing, precision physics, laser spectroscopy, laser interferometry, laser technology, or in atomic clocks, fiber-based data transmission, fiber-based quantum information transmission in quantum networks and / or fiber-based quantum sensors and / or classical sensors.
- Detailed Technology Description
- Apparatus and method for precisely maintaining the linear polarization of light at the output of an optical fiber
The invention relates to an apparatus and method for minimizing the polarization deviation of the light at the output of a polarization-maintaining (PM) optical fiber under disturbances of the enviroment such as temperature, pressure and position changes. By alternately heating and cooling the fiber, the internal birefringence of the PM fiber is modulated within seconds by means of a heating element in the shell (see figure). In this way, the linear polarization at the fiber input can be adjusted with high precision, so as to ensure that the polarization angle of the light at the fiber output remains highly stable up to a precision of 0.01 ° in spite of changes in the environmental conditions.
- Type of Cooperation
- Licensing
- Application Date
- 11/12/2018 00:00:00
- Others
- Patent application
- ID No.
- 5332
- Country/Region
- Germany
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