Medical laser system

A medical laser system, comprising:

• a first laser source comprising first laser resonator, at least a first gain medium for generating a first optical field, and at least one first Q-switch configured to control a resonance quality of the first laser resonator, the first optical field having a first wavelength;
• a control circuit configured to control the first Q-switch to cause the first laser resonator to generate the first optical field as a first pulse train of laser pulses;
• a second laser source for generating a second optical field as a second pulse train of laser pulses, the second optical field having a second wavelength;
• at least one nonlinear medium for generating a third optical field by a nonlinear interaction between the first optical field and the second optical field, the third optical field having a third wavelength different from the first and second wavelengths;
• a sensor configured to detect a property of at least one of the optical fields;
• wherein the control circuit is configured to control operation of the first Q-switch so as to adjust a relative timing of the laser pulses of the first pulse train and the laser pulses of the second pulse train responsive to the detected property, and
• wherein the control circuit is configured to selectively control the relative timing of the laser pulses of the first pulse train and the laser pulses of the second pulse train such that the laser pulses of the first pulse train and the second pulse train do not temporally overlap in the nonlinear medium so as to prevent generation of the third optical field.

A medical laser system, comprising:

• a first laser source comprising first laser resonator, at least a first gain medium for generating a first optical field;
• and at least one first Q-switch configured to control a resonance quality of the first laser resonator, the first optical field having a first wavelength;
• a control circuit configured to control the first Q-switch to cause the first laser resonator to generate the first optical field as a first pulse train of laser pulses;
• a second laser source for generating a second optical field as a second pulse train of laser pulses, the second optical field having a second wavelength;
• at least one nonlinear medium for generating a third optical field by a nonlinear interaction between the first optical field and the second optical field, the third optical field having a third wavelength different from the first and second wavelengths;
• a sensor configured to detect a property of at least one of the optical fields;
• an exposure control device configured to selectively allow radiation from the laser system to pass toward a target area;
• and
• an output selector for selectively blocking radiation of at least one of the first wavelength, the second wavelength, and the third wavelength from being included in the output radiation of the laser system;
• wherein the control circuit is configured to control operation of the first Q-switch so as to adjust a relative timing of the laser pulses of the first pulse train and the laser pulses of the second pulse train responsive to the detected property;
• and
• wherein the control circuit is configured to selectively activate the output selector in response to a wavelength selection command;
• and wherein the exposure control device is positioned upstream from the output selector along the radiation path.

A medical laser system, comprising:

• a first laser source comprising first laser resonator, at least a first gain medium for generating a first optical field;
• and at least one first Q-switch configured to control a resonance quality of the first laser resonator;
• a control circuit configured to control the first Q-switch to cause the first laser resonator to generate the first optical field as a first pulse train of laser pulses, the first optical field having a first wavelength different;
• a second laser source for generating a second optical field as a second pulse train of laser pulses, the second optical field having a second wavelength;
• at least one nonlinear medium for generating a third optical field by a nonlinear interaction between the first optical field and the second optical field, the third optical field having a third wavelength different from the first and second wavelengths;
• a sensor configured to detect a property of at least one of the optical fields;
• an exposure control device configured to selectively allow radiation from the laser system to pass toward a target area;
• and
• an output selector for selectively blocking radiation of at least one of first wavelength, the second wavelength, and the third wavelength from being included in the output radiation of the laser system;
• and
• wherein the control circuit is configured to control operation of the first Q-switch so as to adjust a relative timing of the laser pulses of the first pulse train and the laser pulses of the second pulse train responsive to the detected property;
• and
• wherein the control circuit is configured to selectively activate the output selector in response to a wavelength selection command;
• and wherein the exposure control device is positioned downstream from the output selector along the radiation path.

A medical laser system, comprising:

• a first laser source comprising first laser resonator, at least a first gain medium for generating a first optical field;
• and at least one first Q-switch configured to control a resonance quality of the first laser resonator;
• a control circuit configured to control the first Q-switch to cause the first laser resonator to generate the first optical field as a first pulse train of laser pulses;
• a second laser source for generating a second optical field as a second pulse train of laser pulses;
• at least one nonlinear medium for generating a third optical field by a nonlinear interaction between the first optical field and the second optical field;
• a sensor configured to detect a property of at least one of the optical fields;
• wherein the control circuit is configured to control operation of the first Q-switch so as to adjust a relative timing of the laser pulses of the first pulse train and the laser pulses of the second pulse train responsive to the detected property;
• and
• wherein the first optical field has a first wavelength, the second optical field has a second wavelength, and the third optical field has a third wavelength different from the first and second wavelengths;
• and
• an output selector for selectively blocking radiation of at least one of the first wavelength, second wavelength, and third wavelength from being included in the output radiation of the laser system, and wherein the control circuit is configured to selectively activate the output selector in response to a wavelength selection command.

A medical laser system, comprising:

• a first laser source comprising first laser resonator, at least a first gain medium for generating a first optical field;
• and at least one first Q-switch configured to control a resonance quality of the first laser resonator;
• a control circuit configured to control the first Q-switch to cause the first laser resonator to generate the first optical field as a first pulse train of laser pulses;
• a second laser source for generating a second optical field as a second pulse train of laser pulses;
• at least one nonlinear medium for generating a third optical field by a nonlinear interaction between the first optical field and the second optical field;
• a sensor configured to detect a property of at least one of the optical fields;
• wherein the control circuit is configured to control operation of the first Q-switch so as to adjust a relative timing of the laser pulses of the first pulse train and the laser pulses of the second pulse train responsive to the detected property;
• and
• wherein the medical laser system is operable to feed more than two optical fields into the at least one nonlinear medium, each optical field defining a respective pulse train of laser pulses.