Systems for real-time laser power monitoring

A system for laser power and pulse energy measurement, the system comprising:

• a first laser source configured to generate a first laser beam in a pulsed form;
• a second laser source configured to generate a second laser beam;
• an optical fiber configured to:
• receive the first laser beam from the first laser source;
• direct the first laser beam to a test material to form a bubble in the test material;
• receive the second laser beam from the second laser source;
• direct the second laser beam to the test material;
• receive a reflected portion of the second laser beam from an interface of the test material and the optical fiber;
• and
• direct the reflected portion of the second laser beam to an optical detector;
• the optical detector configured to:
• receive the reflected portion of the second laser beam from the optical fiber;
• and
• generate an optical detector output based on the reflected portion of the second laser beam, wherein a waveform shape of the optical detector output is dependent on a pulse energy of the first laser beam;
• and
• a controller configured to determine a power and the pulse energy of the first laser beam based on the optical detector output.