共振可饱和吸收体rsa 产品详情
可饱和吸收体sa的适用波长范围从980nm到3000nm，弛豫时间从500fs~37ps，其尺寸从1.0 mm x 1.0 mm至5.0 mm x 5.0 mm，搭配多种封装基底。德国batop提供用于两款透射式的可饱和吸收体，包括透过应用的sa可饱和吸收体和用于共振器件的透射型共振可饱和吸收体，它们能够相对低成本地实现激光锁模，应用于环形激光器。
而透射式共振可饱和吸收体rsa是bstop新推出的产品，其型号只有一款：rsa-1057-53-45-6ps-x。可用于1064nm的激光波长，吸收率a为53%，透过率t为45%，弛豫时间6ps。
sa（saturable absorber）-透射式可饱和吸收体
sa可饱和吸收体的大特点是成本远低于另一种常用的锁模方法——sam可饱和吸收镜+布拉格反射镜。一般应用于*激光器的锁模，还可用于>1600nm长波长半导体泵浦固体激光器的锁模。
sa可饱和吸收体封装基底&价格：
sa封装基底选项
规格
价格
无封装x=5.0-0
•single chip, unmounted
€624
x = 1.0b/1.3b -0
•batch of 4 unmounted chips
•chip area 1.3 mm x 1.3 mm或1.0 mm x 1.0 mm
•chip thickness 100 µm, for fiber laser butt coupling,
€624
x = 5.0-12.7g-c / 5.0-12.7g
•chip area 5.0 mm x 5.0 mm
•chip thickness 625 µm, both sides ar coated
•glued on a copper heat sink with 12.7 mm diameter and 4 mm hole
•center mounted (standard): x = 5.0-12.7g-c
•edge mounted : x = 5.0-12.7g-e
€702
x = 5.0-25.0g-c / 5.0-25.0g
•chip area 5.0 mm x 5.0 mm
•chip thickness 625 µm, both sides ar coated
•glued on a copper heat sink with 25.0 mm diameter and 4 mm hole
•center mounted (standard): x = 5.0-25.0g-c
•edge mounted : x = 5.0-25.0g-e
€702
x = 5.0-25.4g-c / 5.0-25.4g
•chip area 5.0 mm x 5.0 mm
•chip thickness 625 µm, both sides ar coated
•glued on a copper heat sink with 25.4 mm diameter and 4 mm hole
•center mounted (standard): x = 5.0-25.4g-c
•edge mounted : x = 5.0-25.4g-e
€702
x = fc/pc / fc/apc
•mounted inside a 1 m long single mode fiber.
•available fibers: hi 980, hi 1060, panda sm98-ps-u25a
•fc/pc connector: x = fc/pc
•fc/apc connector: x = fc/apc
€950
sa可饱和吸收体型号规格：
sa型号
规格
sa-1020-40-500fs-x
sam:λ=1020nm，absorptance 40%，τ~ 500fs
sa-1030-34-3ps-x
sam:λ=1020nm，absorptance 34%，τ~ 3ps
sa-1064-14-28ps-x
sam:λ=1064nm，absorptance 14%，τ~ 28ps
sa-1064-25-500fs-x
sam:λ=1064nm，absorptance 25%，τ~ 500fs
sa-1064-26-37ps-x
sam:λ=1064nm，absorptance 26%，τ~ 37ps
sa-1064-40-500fs-x
sam:λ=1064nm，absorptance 40%，τ~ 500fs
sa-1340-22-20ps-x
sam:λ=1340nm，absorptance 22%，τ~ 20fs
sa-1550-6-20ps-x
sam:λ=1550nm，absorptance 6%，τ~ 20fs
sa-1550-35-2ps-x
sam:λ=1550nm，absorptance 35%，τ~ 2ps
sa-1550-46-2ps-x
sam:λ=1550nm，absorptance 46%，τ~ 2ps
sa-2000-1-10ps-x
sam:λ=2000nm，absorptance 1%，τ~ 10ps
sa-2000-25-10ps-x
sam:λ=2000nm，absorptance 25%，τ~ 10ps
sa-2000-43-10ps-x
sam:λ=2000nm，absorptance 43%，τ~ 10ps
sa-2800-10-10ps-x
sam:λ=2800nm，absorptance 10%，τ~ 10ps
rsa（resonant saturable absorber in transmission）透射式共振可饱和吸收体
rsa透射式共振可饱和吸收体可用于环形激光器的被动锁模，其方法与sa可饱和吸收体相似。目前只有一个标准型号，适用于1064nm的激光波长。
透射式共振可饱和吸收体rsa具有以下特性:
- 低强度时共振波长处的反射率为零。
- 共振以外所有波长的透射比为零。
- 在共振波长处，透过率随脉冲通量的增大而增大。
- 饱和通量明显低于sa可饱和吸收体，甚至低于一般的可饱和吸收镜。
这些特性使得我们可以构造一个被动锁模光纤环形激光器，激光波长固定在rsa的共振波长处，用于启动cw锁模的低功率阈值。
型号参数：rsa-1057-53-45-6ps-x
rsa-1057-53-45-6ps-x封装底座&价格：
rsa封装基底选项
规格
价格
无封装x=5.0-0
•single chip, unmounted
€624
x = 1.0b/1.3b -0
•batch of 4 unmounted chips
•chip area 1.3 mm x 1.3 mm或1.0 mm x 1.0 mm
•chip thickness 100 µm, for fiber laser butt coupling,
€624
x = 5.0-12.7g
•chip area 5.0 mm x 5.0 mm
•chip thickness 625 µm, both sides ar coated
•glued on a copper heat sink with 12.7 mm diameter and 4 mm hole
•center mounted (standard): x = 5.0-12.7g-c
•edge mounted : x = 5.0-12.7g-e
€702
x = 5.0-25.0g
•chip area 5.0 mm x 5.0 mm
•chip thickness 625 µm, both sides ar coated
•glued on a copper heat sink with 25.0 mm diameter and 4 mm hole
•center mounted (standard): x = 5.0-25.0g-c
•edge mounted : x = 5.0-25.0g-e
€702
x = 5.0-25.4g
•chip area 5.0 mm x 5.0 mm
•chip thickness 625 µm, both sides ar coated
•glued on a copper heat sink with 25.4 mm diameter and 4 mm hole
•center mounted (standard): x = 5.0-25.4g-c
•edge mounted : x = 5.0-25.4g-e
€702