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1. 发明授权

US08179943B2 Semiconductor saturable absorber reflector and method to fabricate thereof 有权
标题翻译：半导体可饱和吸收体反射体及其制造方法
公开(公告)号：US08179943B2
公开(公告)日：2012-05-15
申请号：US11918043
申请日：2005-04-06
申请人： Oleg Okhotnikov , Mircea Guina , Anatoly B. Grudinin
发明人： Oleg Okhotnikov , Mircea Guina , Anatoly B. Grudinin
IPC分类号： H01S5/00
CPC分类号： G02F1/3523 , B82Y10/00 , B82Y20/00 , G02F2201/346 , G02F2202/101 , G02F2202/102 , G02F2202/108 , H01S3/08059 , H01S3/1118 , H01S3/113
摘要： A design of a semiconductor saturable absorber that offers a convenient and reliable way to control/decrease the recovery time of the absorption. The absorption recovery time is controlled during the epitaxial growth by using lattice-mismatched layer(s) to induce dislocations, and implicitly non-radiative recombination centers within the nonlinear absorbing region. These lattice reformation layer(s) are interposed between the distributed Bragg reflector and the nonlinear absorption region, containing quantum-wells, quantum-dots or bulk semiconductor material. The thickness and composition of the lattice reformation layer(s) is an instrumental to control the amount of non-radiative recombination centers used to trap the optically excited carriers generated in the absorption region.
摘要翻译：半导体可饱和吸收器的设计提供了一种方便可靠的方式来控制/减少吸收的恢复时间。在外延生长期间通过使用晶格失配层诱导位错以及非线性吸收区内的隐式非辐射复合中心来控制吸收恢复时间。这些晶格重构层被插入在分布布拉格反射器和包含量子阱，量子点或体半导体材料的非线性吸收区之间。晶格重构层的厚度和组成对于控制用于捕获在吸收区域中产生的光学激发载流子的非辐射复合中心的量是有用的。

2. 发明申请

US20090296767A1 Semiconductor Saturable Absorber Reflector and Method to Fabricate Thereof 有权
标题翻译：半导体可饱和吸收反射器及其制造方法
公开(公告)号：US20090296767A1
公开(公告)日：2009-12-03
申请号：US11918043
申请日：2005-04-06
申请人： Oleg Okhotnikov , Mircea Guina , Anatoly B. Grudinin
发明人： Oleg Okhotnikov , Mircea Guina , Anatoly B. Grudinin
IPC分类号： H01S5/00 , H01L21/00
CPC分类号： G02F1/3523 , B82Y10/00 , B82Y20/00 , G02F2201/346 , G02F2202/101 , G02F2202/102 , G02F2202/108 , H01S3/08059 , H01S3/1118 , H01S3/113
摘要： A design of a semiconductor saturable absorber that offers a convenient and reliable way to control/decrease the recovery time of the absorption. The absorption recovery time is controlled during the epitaxial growth by using lattice-mismatched layer(s) to induce dislocations, and implicitly non-radiative recombination centers within the nonlinear absorbing region. These lattice reformation layer(s) are interposed between the distributed Bragg reflector and the nonlinear absorption region, containing quantum-wells, quantum-dots or bulk semiconductor material. The thickness and composition of the lattice reformation layer(s) is an instrumental to control the amount of non-radiative recombination centers used to trap the optically excited carriers generated in the absorption region.
摘要翻译：半导体可饱和吸收器的设计提供了一种方便可靠的方式来控制/减少吸收的恢复时间。在外延生长期间通过使用晶格失配层诱导位错以及非线性吸收区内的隐式非辐射复合中心来控制吸收恢复时间。这些晶格重构层被插入在分布布拉格反射器和包含量子阱，量子点或体半导体材料的非线性吸收区之间。晶格重构层的厚度和组成对于控制用于捕获在吸收区域中产生的光学激发载流子的非辐射复合中心的量是有用的。

3. 发明授权

US07940817B2 Method for organizing a mode-locked pulse train by pump modulation 有权
标题翻译：通过泵浦调制组织锁模脉冲串的方法
公开(公告)号：US07940817B2
公开(公告)日：2011-05-10
申请号：US10507579
申请日：2003-03-07
申请人： Oleg Okhotnikov , Mircea Guina
发明人： Oleg Okhotnikov , Mircea Guina
IPC分类号： H01S3/098 , H01S3/067
CPC分类号： H01S3/1118 , H01S3/067 , H01S3/094076 , H01S3/09415 , H01S3/10046 , H01S3/1022
摘要： A method to stabilize the repetition rate in a passive harmonic mode-locked fiber laser employing semiconductor saturable absorbers. The pulse organization is accomplished by electrically modulating the amplifier pump source that in turn optically modulates the saturable loss of semiconductor absorber. Due to an efficient modulation mechanism of the cavity loss, the method can be used to generate an actively mode-lock pulse train.
摘要翻译：一种使用半导体可饱和吸收器的无源谐波锁模光纤激光器中的重复频率稳定的方法。脉冲组织是通过电调制放大器泵浦源实现的，该放大器泵浦光源又光学地调制半导体吸收体的可饱和损耗。由于空腔损耗的有效调制机制，该方法可用于产生主动锁模脉冲串。

4. 发明申请

US20050163170A1 Method for organizing a mode-locked pulse train by pump modulation 有权
标题翻译：通过泵浦调制组织锁模脉冲串的方法
公开(公告)号：US20050163170A1
公开(公告)日：2005-07-28
申请号：US10507579
申请日：2003-03-07
申请人： Oleg Okhotnikov , Mircea Guina
发明人： Oleg Okhotnikov , Mircea Guina
IPC分类号： H01S3/067 , H01S3/098 , H01S3/102 , H01S3/30
CPC分类号： H01S3/1118 , H01S3/067 , H01S3/094076 , H01S3/09415 , H01S3/10046 , H01S3/1022
摘要： The present invention describes a method to achieve stabilization of the repetition rate in a passive harmonic mode-locked fiber laser employing semiconductor saturable absorbers. The pulse organization is accomplished by electrically modulating the amplifier pump source that in turn optically modulates the saturable loss of semiconductor absorber. Moreover owing on an efficient modulation mechanism of the cavity loss, the method can be used to generate an actively mode-lock pulse train. The invention offers the advantages of an actively modulated mode-locked laser while maintaining the simplicity and the cost effectiveness of a passive mode-locked system. We expect that this approach combined with the use of regenerative modulation technique and polarization-maintaining fiber components will permit the generation of the dropout-free pulse trains at gigahertz repetition rates with good long-term stability and minimal cost.
摘要翻译：本发明描述了一种采用半导体可饱和吸收器的无源谐波锁模光纤激光器实现重复频率稳定的方法。脉冲组织是通过电调制放大器泵浦源实现的，该放大器泵浦光源又光学地调制半导体吸收体的可饱和损耗。此外，由于空腔损耗的有效调制机制，该方法可用于产生主动模式锁定脉冲串。本发明提供了主动调制的锁模激光器的优点，同时保持被动锁模系统的简单性和成本效益。我们预计这种方法结合使用再生调制技术和偏振维持光纤组件将允许以千兆赫重复频率产生无压差脉冲串，具有良好的长期稳定性和最低成本。

5. 发明授权

US07313291B2 Optical modulator 有权
标题翻译：光调制器
公开(公告)号：US07313291B2
公开(公告)日：2007-12-25
申请号：US10974533
申请日：2004-10-26
申请人： Oleg Okhotnikov , Mircea Guina
发明人： Oleg Okhotnikov , Mircea Guina
IPC分类号： G02F1/365 , H01S5/34
CPC分类号： G02F1/3523 , H01S3/067 , H01S3/1061 , H01S3/1118 , H01S5/0265 , H01S5/0602 , H01S5/0609
摘要： The invention relates to an optically pumped multilayered modulator having surface-normal geometry. The multilayer structure comprises an absorber section through which an optical signal (401) to be modulated is coupled from an input (401) to an output (400). The multilayer structure further comprises control means for supplying a control signal for controlling the transmission characteristics of the absorber section. The control signal is generated by an in-plane waveguide-type laser integrated monolithically with the saturable absorption region. The in-plane control laser includes waveguide regions (405) and multiple-quantum-well layers (409) used as a gain medium. The laser beam is adapted to travel through the absorber section in order to modulate the transmission characteristics of the absorber section.
摘要翻译：本发明涉及具有表面法线几何形状的光泵浦多层调制器。多层结构包括吸收器部分，待调制的光信号（401）从输入（401）耦合到输出（400）。多层结构还包括用于提供用于控制吸收体部分的传输特性的控制信号的控制装置。控制信号由与可饱和吸收区域整体集成的平面内波导型激光器产生。平面内控制激光器包括用作增益介质的波导区域（405）和多量子阱层（409）。激光束适于穿过吸收器部分，以便调节吸收器部分的传输特性。

6. 发明申请

US20050146779A1 Optical modulator 有权
标题翻译：光调制器
公开(公告)号：US20050146779A1
公开(公告)日：2005-07-07
申请号：US10974533
申请日：2004-10-26
申请人： Oleg Okhotnikov , Mircea Guina
发明人： Oleg Okhotnikov , Mircea Guina
IPC分类号： G02F1/00 , G02F1/01 , G02F1/35 , H01S3/067 , H01S3/098 , H01S3/106 , H01S5/00 , H01S5/026 , H01S5/06
CPC分类号： G02F1/3523 , H01S3/067 , H01S3/1061 , H01S3/1118 , H01S5/0265 , H01S5/0602 , H01S5/0609
摘要： The invention relates to an optically pumped multilayered modulator having surface-normal geometry. The multilayer structure comprises an absorber section through which an optical signal (401) to be modulated is coupled from an input (401) to an output (400). The multilayer structure further comprises control means for supplying a control signal for controlling the transmission characteristics of the absorber section. The control signal is generated by an in-plane waveguide-type laser integrated monolithically with the saturable absorption region. The in-plane control laser includes waveguide regions (405) and multiple-quantum-well layers (409) used as a gain medium. The laser beam is adapted to travel through the absorber section in order to modulate the transmission characteristics of the absorber section.
摘要翻译：本发明涉及具有表面法线几何形状的光泵浦多层调制器。多层结构包括吸收器部分，待调制的光信号（401）从输入（401）耦合到输出（400）。多层结构还包括用于提供用于控制吸收体部分的传输特性的控制信号的控制装置。控制信号由与可饱和吸收区域整体集成的平面内波导型激光器产生。平面内控制激光器包括用作增益介质的波导区域（405）和多量子阱层（409）。激光束适于穿过吸收器部分，以便调节吸收器部分的传输特性。

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