Recent content by PH^S!C5

Hi Simon Bridge, thanks for your reply... I have tried using the following matrix: [\ \begin{bmatrix} 1 & 0 \\ (n2-n1)/R2 & 1 \end{bmatrix} x \begin{bmatrix} 1 & d/n2 \\ 0 & 1 \end{bmatrix} x \begin{bmatrix} 1 & 0 \\ (n2-n1)/R2 & 1...

Homework Statement A gypsy's crystal ball can act as a thick lens whose centre thickness is twice the radius of curvature of the surface. For a 10 cm sphere of glass with n=1.5 what is the focal length? Like this? : http://postimage.org/image/niisv7bq9/ Homework Equations I am not...

Hi Tsny, I was also wondering about the units, thanks for your help!

Truthfully, I am not certain. I have read over the textbook again and the only possible explanation for adding a one is to have a net gain per round trip increase through the amplifier? I have tried your suggestion and I obtained a value of 4.43x10^-4 cm^-1... at least it's not negative. Do...

Homework Statement Calculate the Q value for a krypton laser with λ=0.569 microns, 0.568m cavity and mirror reflectance of 100% for the rear and 52% for the output window. Homework Equations For a laser cavity=> Q=(4πL)/(λ(1-R1*R2)) The Attempt at a Solution Q= (4*π*...

Homework Statement If a round trip gain in a 56.8 cm long laser is 5.16%, what is the net gain coefficient (g-\alpha). g is the small signal gain coefficient \alpha is the absorption coefficient L-length of cavity Homework Equations The Round Trip Power Gain: Gr= R1*R2*...

I think that the <0 degrees just means that the sources are in phase but I think you are right in that they may be irrelevant in the calculations. so, is this correct for Kirchoff's equation? -j100(i2-i1)+81*i2+(j60)*i2=0 I think that the <0 degrees just means that the sources are in phase...

[b]1. Homework Statement [/ 1) Find the average and relative power for the voltage source and for each impedance branch. Are they absorbing or delivering average power/magnetizing VARS? Homework Equations Those derived and average power=P=((Vm*Im)/2)*(cos(theta(v)-theta(i)) reactive...