Patent ID: 7836894

Claim:
A method for operating a biological tissue-irradiating laser on an irradiation location of tissue, the steps of the method comprising: a) applying a series of laser pulse sequences of finite duration, each laser pulse sequence of said series having at least two time-succeeding applied partial pulse sequences, each at least two time-succeeding applied partial pulse sequences having at least one pulse, said at least two time-succeeding applied partial pulse sequences comprising a first and second partial pulse sequence, said first partial pulse sequence starting from a pre-determined, low pulse energy level and having a monotonically rising pulse energy level, and said second partial pulse sequence having a substantially constant pulse energy level near an end value of said first partial pulse sequence rising energy level; b) detecting bubble formation at said irradiation location during application of said first partial pulse sequence; and c) ending said first partial pulse sequence and commencing said second partial pulse sequence immediately upon detection of said bubble formation in said tissue.