title: High-efficiency microchip laser with self-injection seeding.
abstract: In this paper, we use a small bandwidth 808 nm cw Ti:sapphire laser as a pump source to pump a picosecond microchip laser. Different focal length pump focus lenses have been tested to improve laser efficiency. A maximum slope efficiency of around 20% is obtained by a 30 mm focal length lens. The pump threshold is only 13 mW. In order to reduce the timing jitter, we explored the self-injection seeding method by adding a seeding cavity to the microchip laser. A reduction factor in the timing jitter of up to a factor of 23 relative to the unseeded laser is obtained. From the experiments, we also found that higher seeding pulse energy will help to reduce the jitter more.
authors.forename: Sha
authors.initials: S
authors.lastname: Wang
authors.forename: Yan-biao
authors.initials: YB
authors.lastname: Wang
authors.forename: Xian-heng
authors.initials: XH
authors.lastname: Yang
authors.forename: Guo-ying
authors.initials: GY
authors.lastname: Feng
authors.forename: Shou-huan
authors.initials: SH
authors.lastname: Zhou