Answer:   released if the laser is used 0.056 s during the surgery
 released if the laser is used 0.056 s during the surgery
                             
Explanation:
First, you have to calculate the energy of each photon according to Einstein's theoty, given by: 
                             
Where  is the wavelength,
 is the wavelength,  is the Planck's constant and
 is the Planck's constant and   is the speed of light
 is the speed of light
                -> Planck's constant
  -> Planck's constant
                -> Speed of light
  -> Speed of light
So, replacing in the equation:
                 
Then, the energy of each released photon by the laser is:
                  
 
After, you do the inverse of the energy per phothon and as a result, you will have the number of photons in a Joule of energy:
                 
 
 The power of the laser is 1.1 W, or 1.1 J/s, that means that you can calculate how many photons the laser realease every second: 
               
 And by doing a simple rule of three, if  are released every second, then in 0.056 s:
 are released every second, then in 0.056 s:
              are released during the surgery
 are released during the surgery