Wavelength-tunable laser configuration
AssigneesValtion Teknillinen Tutkimmuskeskus, Board of Regents on Behalf of Optical Sciences Center
InventorsPentti Karioja, Yakov Sidorin
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Abstract
The invention relates to a wavelength-tunable laser configuration. The interspace between a laser source (200) and a control element (202), forming an external cavity, is short and has a length of preferably at most a few hundreds of wavelengths of the laser source (200). Also, the control element (202) is electrically tunable, which means that the control element (202) changes the optical properties of the external cavity with a movement of at least one tuning part (206, 402).
Claims16
A laser configuration with a wavelength-tunable output, the configuration comprising:
- a laser source;
- and
- a control element comprising a main portion and a tuning component disposed on the main portion, the control element being separated by an interspace from the laser source so that the interspace forms an external cavity,
- wherein the main portion of the control element is in a fixed position with respect to the laser source, the tuning component being controllably movable with respect to the main portion to tune a wavelength of light emitted by the laser source, the tuning component being controllably moveable through application of a voltage.
Dependencies are inferred from the claim text.