A method for expanding a tuning range of an all-solid-state continuous-wave single-frequency laser is provided. The method includes inserting a nonlinear frequency-doubling crystal into a laser resonant cavity, and converting a part of intra-cavity fundamental-frequency light to frequency-doubled light by the nonlinear frequency-doubling crystal, outputting the generated frequency-doubled light and the fundamental-frequency light together from the laser resonant cavity, and separating the two via a spectroscope. The method also includes splitting a part of the fundamental-frequency light reflected by the spectroscope through an optical beam-splitter, and outputting the remaining part of the fundamental-frequency light as a main laser. A cavity length of the laser resonant cavity is changed by adjusting a voltage loaded on a piezoelectric ceramic of the all-solid-state continuous-wave single-frequency laser, thereby achieving continuous frequency-tuning of the all-solid-state continuous-wave single-frequency laser.

The present application discloses a double-clad crystal fiber which includes a Yb-doped CALGO core region, a pump cladding region configured to have the core region positioned therein, and a second cladding region configured to have the core region and pump cladding region positioned therein.

A method for expanding a tuning range of an all-solid-state continuous-wave single-frequency laser is provided. The method includes inserting a nonlinear frequency-doubling crystal into a laser resonant cavity, and converting a part of intra-cavity fundamental-frequency light to frequency-doubled light by the nonlinear frequency-doubling crystal, outputting the generated frequency-doubled light and the fundamental-frequency light together from the laser resonant cavity, and separating the two via a spectroscope. The method also includes splitting a part of the fundamental-frequency light reflected by the spectroscope through an optical beam-splitter, and outputting the remaining part of the fundamental-frequency light as a main laser. A cavity length of the laser resonant cavity is changed by adjusting a voltage loaded on a piezoelectric ceramic of the all-solid-state continuous-wave single-frequency laser, thereby achieving continuous frequency-tuning of the all-solid-state continuous-wave single-frequency laser.

A medical laser system in accordance with one or more further embodiments includes a crystal-based laser, a power supply for powering the crystal-based laser, a controller operably connected to the crystal-based laser and the power supply, and a memory operably connected to the controller. The controller is programmed to: (a) activate the crystal-based laser to cause a laser light emission by controlling power supplied by the power supply to the laser responsive to a user activation input; and (b) record data in the memory identifying a power level, number of pulses, and duration of the laser light emission.

The present application discloses a double-clad crystal fiber which includes a Yb-doped CALGO core region, a pump cladding region configured to have the core region positioned therein, and a second cladding region configured to have the core region and pump cladding region positioned therein.

A medical laser system includes a crystal-based laser, an electrosurgery or electrocautery device, a power supply for powering the crystal-based laser and the electrosurgery or electrocautery device, and a controller operably connected to the crystal-based laser, the electrosurgery or electrocautery device, and the power supply. The controller is programmed to: (a) activate the crystal-based laser by controlling power supplied by the power supply to the laser responsive to a laser activation input by a user; and (b) activate the electrosurgery or electrocautery device by controlling power supplied by the power supply to the electrosurgery or electrocautery device responsive to an electrosurgery or electrocautery device activation input by the user.

A medical laser system in accordance with one or more further embodiments includes a crystal-based laser, a power supply for powering the crystal-based laser, a controller operably connected to the crystal-based laser and the power supply, and a memory operably connected to the controller. The controller is programmed to: (a) activate the crystal-based laser to cause a laser light emission by controlling power supplied by the power supply to the laser responsive to a user activation input; and (b) record data in the memory identifying a power level, number of pulses, and duration of the laser light emission.

The present application is directed to a homogeneous laser light source having a temporally-variable seed source which includes at least one seed source configured to output at least one seed signal, the seed source configured to permit the user to selectively vary at least one temporal characteristic of the seed signal, at least one amplifier in communication with and configured to receive the seed signal and output at least one amplifier signal, at least one nonlinear optical generator is communication with the amplifier, the nonlinear optical generator configured to generate at least one homogeneous harmonic output signal in response to the amplifier signal, wherein the wavelength of the homogeneous harmonic output signal is different than the wavelength of the amplifier signal.

The present application is directed to a homogeneous laser light source and includes at least one modeless seed source configured to output at least one modeless seed signal, at least one amplifier in communication with and configured to receive the modeless seed signal from the seed source and output at least one modeless amplifier signal, and at least one nonlinear optical generator configured to receive the amplifier signal and generate at least one modeless harmonic output signal in response to the modeless amplifier signal, wherein the wavelength of the harmonic output signal is different than a wavelength of the modeless amplifier signal.

A medical laser system includes a crystal-based laser, a power supply for powering the crystal-based laser, a controller operably connected to the crystal-based laser and the power supply, and a liquid cooling system. The liquid cooling system includes a conduit circuit through which a cooling liquid can circulate. The conduit circuit is thermally coupled to the crystal-based laser such that the cooling liquid in the conduit circuit absorbs heat from the crystal-based laser. One or more heat sinks are coupled to the conduit circuit and to the power supply such that the cooling liquid in the conduit circuit absorbs heat from the power supply. A pump is provided for driving the cooling liquid through the conduit circuit. A heat exchanger cools the cooling liquid in the conduit circuit.