公开(公告)号：US20210124236A1

公开(公告)日：2021-04-29

申请号：US16605917

申请日：2018-04-17

Applicant: UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION INC. ,  IPG PHOTONICS CORPORATION

Inventor： Konstantin VODOPYANOV ,  Sergey VASILYEV ,  Mikhail MIROV

IPC: G02F1/35 ,  G02F1/355 ,  G02F1/39 ,  H01S3/16 ,  H01S3/109

Abstract: An optical parametric device (OPD), which is selected from an optical parametric oscillator (OPO) or optical parametric generator (OPG), is configured with a nonlinear optical element (NOE) which converts an incoupled pump radiation at first frequency into output signal and idler radiations at one second frequency or different second frequencies, which is/are lower than the first frequency, by utilizing nonlinear interaction via a random quasi-phase matching process (RQPM-NOE). The NOE is made from a nonlinear optical material selected from optical ceramics, polycrystals, micro and nanocrystals, colloids of micro and nanocrystals, and composites of micro and nanocrystals in polymer or glassy matrices. The nonlinear optical material is prepared by modifying a microstructure of the initial sample of the NOE such that an average grain size is of the order of a coherence length of the three-wave interaction which enables the three wave nonlinear interaction with a highest parametric gain achievable via the RQPM process

公开(公告)号：US20190356103A1

公开(公告)日：2019-11-21

申请号：US16474391

申请日：2018-01-05

Applicant: IPG PHOTONICS CORPORATION

Inventor： Sergey VASILYEV

IPC: H01S3/00 ,  H01S3/11 ,  H01S3/109 ,  G02F3/02

Abstract: The present invention provides systems and methods for optical frequency comb generation with self-generated optical harmonics in mode-locked lasers for detecting the carrier envelope offset frequency. The mode-locked laser outputs an optical frequency comb and a harmonic output. The harmonic output provides an optical heterodyne resulting in a detectable beat note. A carrier envelope offset frequency detector detects the beat note and generates an optical frequency comb signal. The signal can be used to stabilize the optical frequency comb output.

公开(公告)号：US20180278006A1

公开(公告)日：2018-09-27

申请号：US15764686

申请日：2016-09-22

Applicant: IPG PHOTONICS CORPORATION

Inventor： Igor MOSKALEV ,  Sergey VASILYEV ,  Michael MIROV ,  Valentin GAPONTSEV

IPC: H01S3/00 ,  G02F1/35 ,  H01S3/23 ,  H01S3/094 ,  G02F1/355 ,  H01S3/16 ,  H01S3/06 ,  H01S3/08 ,  H01S3/042 ,  H01S3/04 ,  H01S3/109 ,  H01S3/11 ,  H01S3/081

CPC classification number: H01S3/0092 ,  G02F1/3511 ,  G02F1/3536 ,  G02F1/3551 ,  G02F2001/3542 ,  G02F2203/11 ,  G02F2203/26 ,  H01S3/0057 ,  H01S3/0407 ,  H01S3/042 ,  H01S3/0619 ,  H01S3/08059 ,  H01S3/0813 ,  H01S3/094042 ,  H01S3/094076 ,  H01S3/108 ,  H01S3/109 ,  H01S3/1112 ,  H01S3/1608 ,  H01S3/1623 ,  H01S3/1628 ,  H01S3/1685 ,  H01S3/2308

Abstract: The present invention provides systems and methods for producing short laser pulses that are amplified and spectrally broadened in a bulk gain media. The bulk material, having laser gain and nonlinear properties, is concurrently exposed to an optical pump input and a seed input, the pump power being sufficient to amplify and spectrally broaden the seed pulse.

公开(公告)号：US20180113372A1

公开(公告)日：2018-04-26

申请号：US15565626

申请日：2016-09-30

Applicant: IPG PHOTONICS CORPORATION

Inventor： Sergey VASILYEV ,  Igor MOSKALEV ,  Michael MIROV ,  Valentin GAPONTSEV

IPC: G02F1/37 ,  G02F1/355 ,  H01S3/16 ,  H01S3/11 ,  H01S3/23 ,  H01S3/10 ,  H01S3/00

CPC classification number: G02F1/37 ,  G02F1/3551 ,  G02F1/39 ,  G02F2001/3528 ,  H01S3/0092 ,  H01S3/094076 ,  H01S3/10007 ,  H01S3/1095 ,  H01S3/11 ,  H01S3/1608 ,  H01S3/1623 ,  H01S3/1628 ,  H01S3/1643 ,  H01S3/2308

Abstract: Systems and methods for spectrally broadening seed pulses with a single pass laser amplifier are disclosed. A bulk TM:II-VI polycrystalline material with combined gain and nonlinear characteristic provides passive (cold) spectral broadening of high power seed pulses. Continuous pumping provides more significant spectral broadening. In particular, pulsed pumping of TM:II-VI polycrystalline material (e.g. Cr2+:ZnS, Cr2+:ZnSe, and Cr2+:CdSe) is shown to provide significant spectral broadening to the super continuum generation SCG level. Pulse picking, pump sources, master oscillators and various optical components are described.

公开(公告)号：US20160294149A1

公开(公告)日：2016-10-06

申请号：US15085327

申请日：2016-03-30

Applicant: IPG PHOTONICS CORPORATION

Inventor： Sergey VASILYEV ,  Michael MIROV ,  Valentin GAPONTSEV

IPC: H01S3/094 ,  H01S3/08 ,  H01S3/081 ,  H01S3/00 ,  H01S3/13 ,  H01S3/16 ,  H01S3/06

CPC classification number: H01S3/094026 ,  H01S3/0014 ,  H01S3/0612 ,  H01S3/08004 ,  H01S3/0815 ,  H01S3/0816 ,  H01S3/1095 ,  H01S3/1112 ,  H01S3/1305 ,  H01S3/162 ,  H01S3/1623 ,  H01S3/1628 ,  H01S3/2308

Abstract: A short-pulse mode-locked laser is configured with at least two reflective elements defining a resonant cavity therebetween, a laser gain element (“GE”) placed inside the resonant cavity at normal incidence and selected from transition metal doped II-VI materials; and an optical pump emitting pulsed output to synchronously or quasi-synchronously pump the GE at a pulse repetition rate frequency fpump, the pump being configured so that the fpump substantially matches an inversed round trip time in the resonant cavity flaser:fpump≈flaser=c/2L, where c is the speed of light, L is the length of the resonant cavity. The synchronous or quasi-synchronous pumping triggers and sustains a short-pulse emission of the laser with picosecond or femtosecond pulse durations.

Abstract translation: 短脉冲锁模激光器配置有至少两个在其间限定谐振腔的反射元件，激光增益元件（“GE”）放置在谐振腔内的正常入射并选自掺杂过渡金属的II-VI材料; 并且发射脉冲输出的光泵以脉冲重复频率fpump同步或准同步地泵送所述泵，所述泵被配置成使得所述fpump基本上匹配所述共振腔flaser中的反向往返时间：fpump≈flaser= c / 2L，其中c是光速，L是谐振腔的长度。 同步或准同步泵浦触发并维持具有皮秒或飞秒脉冲持续时间的激光的短脉冲发射。