Continuously tunable laser oscillator and method of controlling the same
AssigneeU.S. Philips Corporation
InventorChing K. Wong
Life of this patent
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Abstract
A laser oscillator and a method for controlling the laser oscillator. The laser oscillator has a control unit and a laser unit. The control unit applies control signals to the laser unit to control the power and wavelength of a laser light produced by the laser unit. The control unit has a calculation device for calculating values for the controls signals which will cause the power and wavelength of the laser light to be at predetermined values on the basis of the predetermined values and a truncated power series relating values for the control signals to values for the power and wavelengths of the laser light.
Claims22
A laser oscillator, comprising:
- light producing means for producing a laser light;
- and
- control means for applying at least one control signal to said light producing means to control at least one physical characteristic of the laser light, said control means including calculating means for calculating a value for the at least one control signal which will cause the at least one physical characteristic to be at a predetermined value on the basis of the predetermined value and a continuous relation between values for the at least one control signal and values for the at least one physical characteristic within a working range of said light producing means.
A laser oscillator, comprising:
- light producing means for producing a laser light;
- and
- control means for applying cs control signals to said light producing means to control pg physical characteristics of the laser light, said control means including calculating means for calculating values for the cs control signals which will cause each of the pg physical characteristics to be at a predetermined value on the basis of the predetermined value for each of pq physical characteristics and a continuous relation between values for each of the cs control signals and values for each of the pq physical characteristics within a working range of said light producing means;
- wherein cs and pq are integers greater than 1.
A method of controlling a laser oscillator including a light producing means for producing a laser light, the method comprising:
- selecting a predetermined value for at least one physical characteristic of the laser light;
- calculating a value for at least one control signal which will cause said at least one physical characteristic to be at the predetermined value on the basis of the predetermined value for the at least one physical characteristic and a truncated power series relating values for the at least one control signal to values for the at least one physical characteristic within a working range of the light producing means;
- and
- supplying the light producing means with the at least one control signal having the value calculated thereof.
A method of controlling a laser oscillator, including a light producing means for producing a laser light, the method comprising:
- selecting a predetermined value for each of pq physical characteristics of the laser light;
- calculating values for cs control signals which will cause each of the pq physical characteristics to be at the predetermined value thereof on the basis of the predetermined value for each of the pq physical characteristics and a continuous relation between values for the cs control signals and values for the pq physical characteristics within a working range of said light producing means;
- and
- supplying the light producing means with the cs control signals having the values calculated therefor;
- wherein cs and pq are integres greater than 1.
Dependencies are inferred from the claim text.