Laser-diode end-pumped intracavity frequency doubling semiconductor saturable absorber mirror passively mode-locked picosecond lasers

Compact and high repetition rate Kerr-lens mode-locked 532 nm Nd:YVO4laser

“…With intracavity second harmonic generation (SHG), high repetition rate and moderate average power green lasers are important for many applications, such as for use in optical communication, surgery, medicine, surface hardening, solar cell manufacturing, etc. Neodymium-doped yttrium vanadate (Nd:YVO 4 ) crystal has been widely proved as an excellent material to generate pulsed green lasers for more than a decade with frequency doubling technology [1][2][3][4][5][6][7][8][9][10][11][12]. And most of them are Q-switched lasers [1][2][3][4][5][6][7], the others are modelocked lasers, in which the usual passively saturable absorbers are Cr:YAG and SESAM [8][9][10][11][12].…”

“…Neodymium-doped yttrium vanadate (Nd:YVO 4 ) crystal has been widely proved as an excellent material to generate pulsed green lasers for more than a decade with frequency doubling technology [1][2][3][4][5][6][7][8][9][10][11][12]. And most of them are Q-switched lasers [1][2][3][4][5][6][7], the others are modelocked lasers, in which the usual passively saturable absorbers are Cr:YAG and SESAM [8][9][10][11][12]. The laser system operates in the Q-switched mode locked regime with the Cr:YAG [8][9][10], and continuous wave (CW) mode-locked green lasers with SESAM operate in a low repetition rate mode locked regime [11,12].…”

“…And most of them are Q-switched lasers [1][2][3][4][5][6][7], the others are modelocked lasers, in which the usual passively saturable absorbers are Cr:YAG and SESAM [8][9][10][11][12]. The laser system operates in the Q-switched mode locked regime with the Cr:YAG [8][9][10], and continuous wave (CW) mode-locked green lasers with SESAM operate in a low repetition rate mode locked regime [11,12]. So a new method to realize the operation of a high repetition rate CW mode-locked laser is necessary, which can be applied in many fields, such as solar cell manufacturing, light detection and ranging, geo-seismic sensing, etc.…”