公开(公告)号：US12080990B2

公开(公告)日：2024-09-03

申请号：US17289671

申请日：2019-11-20

Applicant: ROHM CO., LTD.

Inventor： Atsushi Yamaguchi ,  Koki Sakamoto

IPC: H01S5/02345 ,  H01S5/02315 ,  H01S5/042 ,  H01S5/06

CPC classification number: H01S5/02345 ,  H01S5/02315 ,  H01S5/042 ,  H01S5/0608

Abstract: Semiconductor laser device A1 includes semiconductor laser element 4, switching element 5 having gate electrode 52, source electrode 53 and drain electrode 54, and support member 1 having conductive part 3 that forms a conduction path to switching element 5 and semiconductor laser element 4 and supports semiconductor laser element 4 and switching element 5. Conductive part 3 has front surface first section 311 spaced apart from semiconductor laser element 4. Semiconductor laser device A1 includes at least one first wire 71 connected to source electrode 53 of switching element 5 and semiconductor laser element 4 and also at least one second wire 72 connected to source electrode 53 of switching element 5 and front surface first section 311 of conductive part 3. Such an arrangement reduces the inductance component of semiconductor laser device A1.

公开(公告)号：US09929537B2

公开(公告)日：2018-03-27

申请号：US15029925

申请日：2014-10-21

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Stephen Gronenborn

IPC: H01S5/183 ,  H01S5/04 ,  H01S5/06 ,  H01S5/14 ,  H01S5/40 ,  H01S5/42 ,  H01S5/10 ,  H01S3/08 ,  H01S3/102 ,  H01S3/23 ,  H01S5/00 ,  H01S5/026

CPC classification number: H01S5/18361 ,  H01S3/08068 ,  H01S3/1022 ,  H01S3/2383 ,  H01S5/0071 ,  H01S5/026 ,  H01S5/041 ,  H01S5/0608 ,  H01S5/1025 ,  H01S5/141 ,  H01S5/4062 ,  H01S5/423

Abstract: The invention describes a laser device (100) enabling controlled emission of individual laser beams (194). The laser device (100) comprises an optically pumped extended cavity laser with one gain element whereby a multitude of pump lasers (110) are provided in order to generate independent pump beams (191) and thus corresponding laser beams (194). The laser device (100) may be used to enable simplified or improved laser systems (500) as, for example, two or three-dimensional laser printers. The pump laser (110) may be VCSEL and the laser (160) may be a VECSEL monolithically integrated with the pump VCSEL array on the same substrate. Pump mirrors (140) and external cavity mirror (150) may be integrated into a single optical reflector with regions having different curvature. The laser emission is controlled by the pump light, i.e. transversal shape of the laser beam and/or number of laser beams is controlled by switching on/off the individual pump lasers (110).

公开(公告)号：US20180067378A1

公开(公告)日：2018-03-08

申请号：US15255781

申请日：2016-09-02

Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

Inventor： Khurram Karim QURESHI

IPC: G02F3/00 ,  G02F1/095

CPC classification number: G02F3/00 ,  G02F1/0955 ,  H01S5/005 ,  H01S5/0078 ,  H01S5/0608 ,  H01S5/12 ,  H01S5/4006

Abstract: In one example, an optical logic device includes a distributed feedback laser configured to generate a first signal corresponding to distributed feedback laser output signal, the first signal being at a first wavelength. The device further includes a bandpass filter having a center frequency corresponding to the first wavelength. Additionally, the device can include an optical circulator having a first port coupled to a logic device input signal, a second port coupled to the first signal, and a third port coupled to the bandpass filter, wherein when the logic device input signal has a power above a predetermined threshold and there is a wavelength difference between the first wavelength and an input wavelength of the logic device input signal, a suppression of the first signal occurs.

公开(公告)号：US08000370B2

公开(公告)日：2011-08-16

申请号：US12835538

申请日：2010-07-13

Applicant: Hideto Furuyama

Inventor： Hideto Furuyama

IPC: H01S3/03

CPC classification number: G02B6/12004 ,  H01S5/0028 ,  H01S5/0608 ,  H01S5/10 ,  H01S5/101 ,  H01S5/1025 ,  H01S5/1046 ,  H01S5/1203 ,  H01S5/20 ,  H01S5/4031 ,  H01S5/4056

Abstract: A laser-induced optical wiring apparatus includes a substrate, first and second light-reflecting members provided on the substrate separately from each other, an optical waveguide provided on the substrate for optically coupling the first and second light-reflecting members to form an optical resonator, a first optical gain member provided across the optical waveguide and forming a laser oscillator along with the first and second light-reflecting members, and a second optical gain member provided across the optical waveguide separately from the first optical gain member, and forming another laser oscillator along with the first and second light-reflecting members.

Abstract translation: 激光诱导光线路装置包括：基板，分别设置在基板上的第一和第二光反射部件，设置在基板上的光波导，用于光耦合第一和第二光反射部件，以形成光谐振器 设置在所述光波导上并与所述第一和第二光反射部件一起形成激光振荡器的第一光学增益部件和与所述第一光学增益部件分开设置在所述光波导上的第二光学增益部件，以及形成另一激光器 振荡器以及第一和第二光反射部件。

公开(公告)号：US20090238228A1

公开(公告)日：2009-09-24

申请号：US12076618

申请日：2008-03-20

Applicant: Zhenguo Lu ,  Jiaren Liu ,  Sylvain Raymond ,  Philip Poole ,  Pedro Barrios ,  Daniel Poitras

Inventor： Zhenguo Lu ,  Jiaren Liu ,  Sylvain Raymond ,  Philip Poole ,  Pedro Barrios ,  Daniel Poitras

IPC: H01S5/00

CPC classification number: H01S5/341 ,  B82Y20/00 ,  H01S5/0608 ,  H01S5/1096 ,  H01S5/3412 ,  H01S5/34306 ,  H01S5/34373

Abstract: Methods and devices for providing a multiwavelength laser which may be used for multicasting and other optical communications uses. The present invention provides a quantum dot based multiwavelength laser with a monolithic gain block. The Fabry-Perot gain block has both upper and lower InP cladding layers. The laser system has a middle quantum dot layer with multiple stacked layers of InAs quantum dots embedded in InGaAsP. When provided with a CW injection current, the laser system produces an output spectra with equally spaced multiple emission peaks. With an input optical data signal applied to the laser system, the laser system duplicates the data in the input signal across multiple different wavelengths.

Abstract translation: 用于提供可用于组播和其他光通信使用的多波长激光器的方法和装置。 本发明提供了一种具有单片增益块的基于量子点的多波长激光器。 法布里 - 珀罗增益块具有上和下InP包层。 激光系统具有中子量子点层，InGaAsP中嵌有InAs量子点的多层堆叠层。 当提供CW注入电流时，激光系统产生具有等间隔的多个发射峰的输出光谱。 通过施加到激光系统的输入光学数据信号，激光系统在多个不同波长上复制输入信号中的数据。

公开(公告)号：US20090080480A1

公开(公告)日：2009-03-26

申请号：US12188840

申请日：2008-08-08

Applicant: Hideto FURUYAMA

Inventor： Hideto FURUYAMA

IPC: H01S3/00

CPC classification number: G02B6/12004 ,  H01S5/0028 ,  H01S5/0608 ,  H01S5/10 ,  H01S5/101 ,  H01S5/1025 ,  H01S5/1046 ,  H01S5/1203 ,  H01S5/20 ,  H01S5/4031 ,  H01S5/4056

Abstract: A laser-induced optical wiring apparatus includes a substrate, first and second light-reflecting members provided on the substrate separately from each other, an optical waveguide provided on the substrate for optically coupling the first and second light-reflecting members to form an optical resonator, a first optical gain member provided across the optical waveguide and forming a laser oscillator along with the first and second light-reflecting members, and a second optical gain member provided across the optical waveguide separately from the first optical gain member, and forming another laser oscillator along with the first and second light-reflecting members.

Abstract translation: 激光诱导光线路装置包括：基板，分别设置在基板上的第一和第二光反射部件，设置在基板上的光波导，用于光耦合第一和第二光反射部件，以形成光谐振器 设置在所述光波导上并与所述第一和第二光反射部件一起形成激光振荡器的第一光学增益部件和与所述第一光学增益部件分开设置在所述光波导上的第二光学增益部件，以及形成另一激光器 振荡器以及第一和第二光反射部件。

公开(公告)号：US20070103755A1

公开(公告)日：2007-05-10

申请号：US11531936

申请日：2006-09-14

Applicant: Hideto Furuyama

Inventor： Hideto Furuyama

IPC: G02B26/08

CPC classification number: G02B6/12004 ,  H01S5/0028 ,  H01S5/0608 ,  H01S5/10 ,  H01S5/101 ,  H01S5/1025 ,  H01S5/1046 ,  H01S5/1203 ,  H01S5/20 ,  H01S5/4031 ,  H01S5/4056

Abstract: A laser-induced optical wiring apparatus includes a substrate, first and second light-reflecting members provided on the substrate separately from each other, an optical waveguide provided on the substrate for optically coupling the first and second light-reflecting members to form an optical resonator, a first optical gain member provided across the optical waveguide and forming a laser oscillator along with the first and second light-reflecting members, and a second optical gain member provided across the optical waveguide separately from the first optical gain member, and forming another laser oscillator along with the first and second light-reflecting members.

Abstract translation: 激光诱导光线路装置包括：基板，分别设置在基板上的第一和第二光反射部件，设置在基板上的光波导，用于光耦合第一和第二光反射部件，以形成光谐振器 设置在所述光波导上并与所述第一和第二光反射部件一起形成激光振荡器的第一光学增益部件和与所述第一光学增益部件分开设置在所述光波导上的第二光学增益部件，以及形成另一激光器 振荡器以及第一和第二光反射部件。

公开(公告)号：US20050073740A1

公开(公告)日：2005-04-07

申请号：US10343929

申请日：2001-07-27

Applicant: Christopher Phillips

Inventor： Christopher Phillips

IPC: H01S3/108 ,  H01S5/06 ,  H01S5/34 ,  H01S5/50 ,  G02F2/02

CPC classification number: B82Y20/00 ,  H01S3/108 ,  H01S5/0604 ,  H01S5/0608 ,  H01S5/3402 ,  H01S5/5054

Abstract: An apparatus (8, 14) for wavelength shifting light from a first frequency ν1 to a second frequency ν1 is provided in the form of a semiconductor intersubband laser (8) lasing at its intersubband frequency ν3. The output light is wavelength shifted to a frequency ν2=ν1+−nν3, where n is a non-zero integer ( . . . −−2, −1, 1, 2 . . . ). The wavelength shifted light ν2 may be amplitude modulated and/or frequency modulated to impart information upon it. The wavelength shifting is a coherent process allowing for the possibility of coherent communication techniques to be used.

Abstract translation: 用于将光从第一频率nu1波长移位到第二频率nu1的装置（8,14）以半波带间激光器（8）的形式提供，在其子带间频率nu3处发射。 输出光被波长移动到频率nu2 = nu1 + -nnu3，其中n是非零整数（...，-2，-1,1,2 ...）。 波长偏移光nu2可以进行幅度调制和/或频率调制以在其上传递信息。 波长偏移是一个相干过程，允许使用相干通信技术的可能性。

公开(公告)号：US06847054B1

公开(公告)日：2005-01-25

申请号：US10072263

申请日：2002-02-07

Applicant: Sol P. DiJaili ,  Jeffrey D. Walker

Inventor： Sol P. DiJaili ,  Jeffrey D. Walker

IPC: H01L29/16

CPC classification number: G02F2/004 ,  G02F3/026 ,  H01S5/0608 ,  H01S5/1032 ,  H01S5/18311 ,  H01S5/2009 ,  H01S5/5072

Abstract: An optical transistor is disclosed that provides a fast switching time, an amplified gain, and isolation. The optical transistor receives a small optical input signal at an optical base port, generates an amplified replica at an optical emitter port, and generates an inverted replica on a vertical light at an collector port. One embodiment of the optical transistor is implemented with a vertical lasing semiconductor optical amplifiers (VLSOA), wherein the ballast light is used a signal for the collector port.

Abstract translation: 公开了提供快速开关时间，放大增益和隔离的光学晶体管。 光晶体管在光基端口接收小的光输入信号，在光发射端口产生放大副本，并在收集端口的垂直光上产生反相复制品。 光学晶体管的一个实施例用垂直激光半导体光放大器（VLSOA）来实现，其中镇流器光被用作收集器端口的信号。

公开(公告)号：US06553048B2

公开(公告)日：2003-04-22

申请号：US10032841

申请日：2001-10-24

Applicant: Wenbin Jiang ,  Hsing-Chung Lee

Inventor： Wenbin Jiang ,  Hsing-Chung Lee

IPC: H01S500

CPC classification number: H01S5/041 ,  H01S5/0216 ,  H01S5/026 ,  H01S5/0265 ,  H01S5/0608 ,  H01S5/06216 ,  H01S5/06226 ,  H01S5/1085 ,  H01S5/18 ,  H01S5/18369 ,  H01S5/2027 ,  H01S5/2214 ,  H01S5/2231 ,  H01S5/4025

Abstract: Modulated integrated optically pumped vertical cavity surface emitting lasers are formed by integrating an electrically pumped semiconductor laser and a vertical cavity surface emitting laser (VCSEL) together with a means of direct modulation of the electrically pumped semiconductor laser. In the preferred embodiments, the electrically pumped semiconductor laser is a type of folded cavity surface emitting laser (FCSEL). In a number of embodiments, the FCSEL is partitioned into two sections by a gap in material layers. In these embodiments, one section of the FCSEL is biased so as to maintain the generation of photons at a constant power level to pump the optically pumped VCSEL while the second section of the FCSEL is used for modulation and causes the optically pumped VCSEL to be modulated above the threshold. In another embodiment, an electric-absorption modulator is sandwiched between an electrically pumped FCSEL and an optically pumped VCSEL. The electric-absorption modulator acts similar to a camera shutter and allows photons to pass through from the electrically pumped FCSEL to the optically pumped VCSEL when in one state and attenuates photons before reaching the optically pumped VCSEL when in another state.