摘要:
There is provided a solid-state laser device (10) including: a resonator; a solid-state laser medium (18) disposed in the resonator; an excitation section that irradiates an excitation beam into the solid-state laser medium (18); a mode selector (26) that controls transverse modes of oscillating light in the resonator; and a movement section (28) that moves the mode selector (26) along the resonator optical axis direction (Z). The laser may be mode-locked with a SESAM (12) and the laser medium may be Yb: KYW. The transverse mode selector may be a knife edge (26) which is translated with the help of a holder (28) resulting in a single transverse mode emission of the laser.
摘要:
An object information acquiring apparatus is used which includes: a laser medium (704); a temperature controlling unit (705) for controlling a temperature of the laser medium; an excitation unit (703) for exciting the laser medium; a control unit (701) for controlling the temperature controlling unit and the excitation unit; a probe (710) for receiving acoustic waves (709) that are generated when an object(706) is irradiated with a laser beam from the laser medium; and a processing unit (711) for acquiring characteristic information relating to the object from the acoustic waves, wherein the control unit does not operate the excitation unit until the temperature of the laser medium falls within a predetermined range.
摘要:
A pulse laser (10) includes a laser medium (1), a charge storage unit (3), a power source unit (4) configured to supply an electrical charge to the charge storage unit (3), an excitation unit (2) configured to cause irradiation of the laser medium with excitation light by being supplied with electrical charge stored in the charge storage unit (3), a switching unit (7) configured to repeatedly supply the charge stored in the charge storage unit (3) to the excitation unit (2), an energy monitoring unit (5) configured to monitor energy stored in the charge storage unit (3), and a control unit (6) configured to prevent the switching unit (7) from supplying the electrical charge stored in the charge storage unit (3) to the excitation unit (2) when the energy monitored by the energy monitoring unit (5) is larger than a threshold.
摘要:
A laser resonator comprising: at least one output coupler; at least one end reflector; a retroreflector; a telescope; a gain medium; wherein the telescope is a common telescope provided in a beam path between the retro reflector and both the end reflector and the output coupler.
摘要:
In certain embodiments, a system (10) comprises a laser source (20), one or more optical elements (24), a monitoring device (28), and a control computer (30). The laser source (20) emits one or more laser pulses. The optical elements (24) change a pulse length of the laser pulses, and the monitoring device (28) measures the pulse length of the laser pulses to detect the change in the pulse length. The control computer (30) receives the measured pulse length from the monitoring device (28), determines one or more laser parameters that compensate for the change in the pulse length, and controls the laser source (20) according to the laser parameters.
摘要:
Embodiments are directed to methods for correcting lateral and angular displacement of laser beams within a laser cavity. For some embodiments, such methods are used to correct angular displacement of laser beams within a laser cavity that result from varying the lasing wavelength in a tunable laser system.