Supermode Noise Spur Suppression and Frequency Comb Generation in a 100 MHz Semiconductor-Based Theta Cavity Laser Using an Intra-cavity Fabry-Perot Etalon

A Fabry-Perot etalon is inserted into a semiconductor-based laser cavity operating at the chirped pulse amplification regime. The laser output exhibits supermode noise spur suppression and a semiconductor-based optical frequency comb is generated.