公开(公告)号：US06876818B1

公开(公告)日：2005-04-05

申请号：US09642033

申请日：2000-08-18

申请人： Yu Sheng Bai ,  Clarence Kan ,  Dzhakhangir V. Khaydarov ,  Robert Brogle ,  Tatiana V. Rossin ,  Ilya M. Fishman

发明人： Yu Sheng Bai ,  Clarence Kan ,  Dzhakhangir V. Khaydarov ,  Robert Brogle ,  Tatiana V. Rossin ,  Ilya M. Fishman

IPC分类号： H04B10/18 ,  H04B10/00

CPC分类号： H04B10/25137

摘要： A system and method for transmission of data modulated spectrally enriched optical pulses via an error free propagation region of an optical fiber, in which the optical pulses generated by an optical transmitter have a spectrum that is substantially wider than the spectrum of Fourier-transform limit at an input of the error-free propagation region. The spectral width of the optical pulses gradually narrows while transmitting along this region and becomes comparable to the Fourier-transform limit at an output of this region. Linear and non-linear distortions are compensated within the error free propagation region respectively by deployment of dispersion compensating units and phase modulation of transmitted optical pulses for providing them with an appropriate frequency chirp having shape comparable with a frequency chirp induced by a self-phase modulation of the optical fiber but having opposite sign.

摘要翻译： 一种用于通过光纤的无差错传播区域传输数据经调制的光谱富集的光脉冲的系统和方法，其中由光发射机产生的光脉冲具有的光谱基本上比傅立叶变换极限谱 输入无差错传播区域。 光脉冲的光谱宽度在沿着该区域传输时逐渐变窄，并且与该区域的输出处的傅立叶变换极限相当。 线性和非线性失真分别通过布置色散补偿单元和传输光脉冲的相位调制来分别在无差错传播区域内补偿，以向它们提供具有与由自相位调制引起的频率啁啾形状相当的形状的适当频率啁啾 的光纤，但具有相反的符号。

公开(公告)号：US07356053B2

公开(公告)日：2008-04-08

申请号：US10679985

申请日：2003-10-06

申请人： Dzhakhangir V. Khaydarov

发明人： Dzhakhangir V. Khaydarov

IPC分类号： H01S3/098

CPC分类号： H01S3/1118 ,  H01S3/092 ,  H01S3/1068 ,  H01S3/113 ,  H01S3/1611 ,  H01S3/1643

摘要： A pulsed, mode-locked, picosecond laser having a solid-state laser medium, a saturable absorber (SA), and a passive negative feedback (PNF) element. The SA is “slow,” having an absorption recovery time which is longer than a desired duration of an output pulse. The SA and the PNF element together mode-lock the laser to produce an output pulse or pulses of a given duration. The position of the SA along the beam path and the orientation of the SA with respect to the beam path can be varied to vary the output pulse duration over a wide range.

摘要翻译： 具有固态激光介质，饱和吸收体（SA）和无源负反馈（PNF）元件的脉冲，锁模，皮秒激光器。 SA是“慢”的，其吸收恢复时间长于输出脉冲的期望持续时间。 SA和PNF元件一起模式锁定激光器以产生给定持续时间的输出脉冲或脉冲。 可以改变沿着光束路径的SA的位置和SA相对于光束路径的取向，以在宽范围内改变输出脉冲持续时间。

公开(公告)号：US06546027B1

公开(公告)日：2003-04-08

申请号：US09452661

申请日：1999-12-01

申请人： Dzhakhangir V. Khaydarov

发明人： Dzhakhangir V. Khaydarov

IPC分类号： H01S311

CPC分类号： H01S3/1118 ,  H01S3/08004 ,  H01S3/08022 ,  H01S3/0805 ,  H01S3/1061 ,  H01S3/1103 ,  H01S3/1109

摘要： The present invention is directed to a pulsed, mode-locked, picosecond laser having a solid-state laser medium, a saturable absorber (SA), and a passive negative feedback (PNF) element. The SA is “slow”, having an absorption recovery time which is longer than a desired duration of an output pulse. The SA and the PNF element together mode-lock the laser to produce an output pulse or pulses of the desired duration. Thus, according to the method of the invention, the solid-state laser medium is energized, whereupon the laser becomes mode-locked to produce the desired output pulses. The solid-state laser of the present invention is capable of producing very short, energetic output pulses, such as output pulses having a duration on the order of one or more picoseconds, and an energy of from about 100 &mgr;J to about 2 mJ. These output pulses are very stable. As the laser is of relatively simple construction, it is relatively easy to operate to produce this stable energy output.

摘要翻译： 本发明涉及具有固体激光介质，可饱和吸收体（SA）和无源负反馈（PNF）元件的脉冲式锁模皮秒激光器。 SA是“慢”的，其吸收恢复时间长于输出脉冲的期望持续时间。 SA和PNF元件一起模式锁定激光器以产生所需持续时间的输出脉冲或脉冲。 因此，根据本发明的方法，固态激光介质被激励，于是激光器被锁模以产生期望的输出脉冲。 本发明的固体激光器能够产生非常短的能量输出脉冲，例如具有大约一个或多个皮秒的持续时间的输出脉冲，以及从约100μJ到约2mJ的能量。 这些输出脉冲非常稳定。 由于激光器的结构相对简单，所以操作起来比较容易，以产生稳定的能量输出。