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Continuously tunable single-frequency Ti:Sapphire laser based on intracavity electro-optic etalon locking

A technology of etalons and lasers, applied in the direction of lasers, laser components, phonon exciters, etc.

Active Publication Date: 2019-04-05
SHANXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this method can obtain a large frequency continuous tuning range, due to the limitation of the acceptance bandwidth of the nonlinear crystal, the Ti:Sapphire laser can only achieve this function in a specific frequency band

Method used

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  • Continuously tunable single-frequency Ti:Sapphire laser based on intracavity electro-optic etalon locking
  • Continuously tunable single-frequency Ti:Sapphire laser based on intracavity electro-optic etalon locking
  • Continuously tunable single-frequency Ti:Sapphire laser based on intracavity electro-optic etalon locking

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with accompanying drawing:

[0028] figure 1A schematic structural diagram of a continuously tunable single-frequency Ti:Sapphire laser based on intracavity electro-optic etalon locking provided by the present invention. The laser light emitted by the pump source 1 is reshaped and focused by the coupling system, and then incident on the gain medium titanium sapphire crystal 2 placed in the four-mirror ring resonator. The central wavelength of the emitted light of the pump source 1 is 532nm, and the linear polarization direction of the emitted laser light of the pump source 1 is horizontal polarization, which meets the requirement of the gain medium titanium sapphire crystal 2 for the polarization absorption of the pump light. The resonant cavity adopts a four-mirror annular resonant cavity structure, which is composed of two plano-concave mirrors (first plano-concave mirror 31, second plano-concave mi...

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Abstract

The invention provides a continuous tunable single-frequency ti sapphire laser based on locking of an electro-optical etalon of an internal cavity. The laser comprises a pumping source, a ti sapphire crystal, a laser resonator, an optical isolator, a double-refraction filter plate, the electro-optical etalon, a vibrating mirror motor, piezoelectric ceramics, a beam splitting mirror, a photoelectric detector, a servo controller, a high-voltage driver and a signal generator; the light field in the cavity is modulated by utilizing a photoelectric effect of the electro-optical etalon, and the photoelectric detector detects and extracts error signals; and the electro-optical etalon is mounted on the vibrating mirror motor, the vibrating mirror motor is used to control the angle of the electro-optical etalon, and the electro-optical etalon is locked in real time. According to the invention, the light field in the cavity is modulated by utilizing the photoelectric effect of the electro-optical etalon, the photoelectric detector detects and extracts error signals and enables the vibrating mirror motor to control the angle of the electro-optical etalon, the transmission peak of the etalon is locked in the laser oscillation frequency in real time, and the cavity length of the laser resonant cavity is changed to realize continuous tuning of the laser frequency.

Description

technical field [0001] The invention relates to a Ti:Sapphire laser, in particular to a continuously tuneable single-frequency Ti:Sapphire laser based on intracavity electro-optic etalon locking. Background technique [0002] Since the output laser light of titanium-doped sapphire laser can cover the red light and near-infrared bands of 700nm-1000nm, it is widely used in scientific research fields such as cold atomic physics and quantum optics. In the experimental process of atomic capture and cooling, atomic storage, etc., the frequency of the laser output light needs to be precisely matched with the atomic transition line, which requires the Ti:Sapphire laser to have a certain frequency continuous tuning capability. Therefore, in recent years, in addition to the high power, high stability, and wide tuning range of Ti:Sapphire lasers, people have also begun to pay attention to the frequency continuous tuning characteristics of Ti:Sapphire lasers, and adopted a series of tec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/107
CPCH01S3/107
Inventor 卢华东靳丕铦苏静彭堃墀
Owner SHANXI UNIV
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