Passively Mode-Locked GaInN Laser Diode Generating 200 fs Optical Pulses

• DOI: 10.7567/jjap.52.08jg06
• Publication Date: 2013-05-31T06:33:53Z
• Authors: Shunsuke Kono; Hideki Watanabe; Rintaro Koda; Takao Miyajima; Masaru Kuramoto
• Keywords: Mode-Locking; Group delay dispersion; Laser diode

Femtosecond optical pulses with a duration of 200 fs were generated using GaInN bisectional laser diode passively mode-locked in dispersion-compensated external cavity spectral filtering performed outside the cavity. The fact that femtosecond obtained negative intracavity group-velocity dispersion and saturable absorber recovery time about 15 ps indicates mechanism involved was soliton mode-locking. spectro-temporal investigation output directly emitted after revealed broadening due to self-phase modulation gain section.