This preview shows page 1. Sign up to view the full content.
Unformatted text preview: respectively. (a) Find the number of longitudinal modes between 1540nm and 1560nm. (b) Find the total cavity loss and the photon lifetime. (c) If the threshold current is I th =3mA. Find the corresponding threshold current density. (d) If the pump current is 15mA, what is the number of photons generated per second? (e) Briefly discuss the factors that can improve the laser modulation bandwidth....
View Full Document
This note was uploaded on 05/18/2010 for the course INFORMATIO IEG 4030 taught by Professor Liank.che during the Spring '10 term at CUHK.
- Spring '10