公开(公告)号：EP2366214A1

公开(公告)日：2011-09-21

申请号：EP09803881.3

申请日：2009-12-16

申请人： Centre National de la Recherche Scientifique (C.N.R.S.)

发明人： MORIN, Franck ,  HANNA, Marc ,  DRUON, Frédéric ,  GEORGES, Patrick

IPC分类号： H01S3/067 ,  H01S3/094 ,  A61F9/01

CPC分类号： H01S3/0057 ,  A61F9/00831 ,  A61F2009/00872 ,  B23K26/0624 ,  H01S3/06758 ,  H01S3/0677 ,  H01S3/094003 ,  H01S3/094042 ,  H01S3/1608 ,  H01S3/1618 ,  H01S2302/00 ,  H01S2303/00

摘要： The invention relates to a pulsed laser (10) with an optical fibre and frequency shifting for amplifying high-energy sub-picosecond pulses, including an oscillator (1), a fibre stretcher (3), one or more preamplification stages and one power amplification stage including an erbium doped or erbium-ytterbium codoped optical fibre section (4, 7), a pump (8) suitable for optically pumping by coupling in the optical fibre of the power amplifier (7) and a compressor (9). According to the invention, the pump (8) of the power stage generates at least one pump wavelength λP between 1530 and 1565 nm, the laser pulse emission wavelength (20) is between 1565 and 1625 nm and the energy of the laser pulses (20) is between 10 nJ and several dozen μJ. The invention also relates to a tool for eye surgery including such a laser.

公开(公告)号：EP3146387B1

公开(公告)日：2019-12-18

申请号：EP15728426.6

申请日：2015-05-19

申请人： Centre National de la Recherche Scientifique (C.N.R.S.) ,  Institut d'Optique Graduate School ,  Universite Paris-Sud

发明人： DEYRA, Loïc ,  BALEMBOIS, François ,  GEORGES, Patrick

IPC分类号： G02F1/35

公开(公告)号：EP3146387A1

公开(公告)日：2017-03-29

申请号：EP15728426.6

申请日：2015-05-19

申请人： Centre National de la Recherche Scientifique (C.N.R.S.) ,  Institut d'Optique Graduate School ,  Universite Paris-Sud

发明人： DEYRA, Loïc ,  BALEMBOIS, François ,  GEORGES, Patrick

IPC分类号： G02F1/35

摘要： According to an aspect, the invention relates to a frequency conversion cell (10) including: a nonlinear, birefringent crystal (12), characterized by a first phase matching wavelength and having an input surface (121
A ) for receiving at least one incident beam, an output surface (121
B ) for emitting at least one frequency-converted beam, and at least two parallel surfaces (120
A , 120
B ), different from the input and output surfaces; and means (14, 14
A ) for applying an external mechanical force onto at least one of said parallel surfaces (120
A ), referred to as "force application" surface, thus resulting in a variation in the birefringence of the nonlinear crystal. The value of the applied external mechanical force is predetermined such as to obtain the phase matching in the nonlinear crystal at a second phase matching wavelength different from the first phase matching wavelength.

摘要翻译： 根据一个方面，本发明涉及一种频率转换单元（10），包括：非线性双折射晶体（12），其特征在于第一相位匹配波长并具有用于接收至少一个入射光束的输入表面（121A） 用于发射至少一个频率转换光束的输出表面（121B）以及不同于输入和输出表面的至少两个平行表面（120A，120B） 和用于将外部机械力施加到所述平行表面（120A）中的称为“施力”表面的至少一个表面上的装置（14,14A），由此导致非线性晶体的双折射的变化。 所施加的外部机械力的值是预定的，以便在与第一相位匹配波长不同的第二相位匹配波长处获得非线性晶体中的相位匹配。

公开(公告)号：EP2366214B1

公开(公告)日：2013-02-13

申请号：EP09803881.3

申请日：2009-12-16

申请人： Centre National de la Recherche Scientifique (C.N.R.S.)

发明人： MORIN, Franck ,  HANNA, Marc ,  DRUON, Frédéric ,  GEORGES, Patrick

IPC分类号： H01S3/067 ,  H01S3/094 ,  A61F9/01

CPC分类号： H01S3/0057 ,  A61F9/00831 ,  A61F2009/00872 ,  B23K26/0624 ,  H01S3/06758 ,  H01S3/0677 ,  H01S3/094003 ,  H01S3/094042 ,  H01S3/1608 ,  H01S3/1618 ,  H01S2302/00 ,  H01S2303/00