Q3. Laser and switch (a) Derive the threshold gain (G) of a Fabry Perot laser. Assume that the reflectance of two end fa
Posted: Sun May 15, 2022 3:42 pm
Q3. Laser and switch (a) Derive the threshold gain (G) of a Fabry Perot laser. Assume that the reflectance of two end facet mirrors are R1 and R2, absorption coefficient is a and laser length is L. (13 marks) (b) Describe micromirror/MEMs switches, bubble-jet waveguide switches and electro-optical switches with the aid of their schematic diagram. Draw a schematic diagram to show the add/drop application of optical switches. (12 marks)