公开(公告)号：WO2009002255A1

公开(公告)日：2008-12-31

申请号：PCT/SE2008/050692

申请日：2008-06-10

Applicant: SYNTUNE AB ,  GRANESTRAND, Per ,  WESSTRÖM, Jan-OLof ,  ADAMS, Dave

Inventor： GRANESTRAND, Per ,  WESSTRÖM, Jan-OLof ,  ADAMS, Dave

IPC: G02F1/225

CPC classification number: G02F1/225 ,  G02F2201/14 ,  G02F2203/21

Abstract: A Mach Zehnder (MZ) modulator (1) comprising a splitter (4) for splitting incident light in one wave guide (3) into two modulator arms (5,6) of the MZ and comprising a combiner (7) that combines light from the two arms {5,6) into an output mode, where electrodes (9,10) are present in connection with said arms (5,6) for changing the refractive index in said arms in order to modulate incident light so that the light is amplified or so that an extinction, due to interference between the light in the two arms, takes place. The invention is characterised in, that the splitter (4) is arranged to split incident light equally into the two arms (5,6) and in that a part (11) of one of the arms (5) between said electrode (9) and said combiner (7) is designed to cause an intentional loss of light in the wave guide (3), whereby a desired asymmetry in transmission of the two arms (5,6) occurs.

Abstract translation: 一种马赫曾德尔（MZ）调制器（1），包括用于将一个波导（3）中的入射光分成MZ的两个调制器臂（5,6）的分束器（4），并且包括组合器（7） 两个臂（5,6）进入输出模式，其中电极（9,10）与所述臂（5,6）结合存在，用于改变所述臂中的折射率，以便调制入射光，使得光 被放大或使得由于两个臂中的光之间的干涉而发生消光。 本发明的特征在于，分离器（4）被布置成将入射光均匀地分成两个臂（5,6），并且其中一个臂（5）的所述电极（9）之间的部分（11） 并且所述组合器（7）被设计成在波导（3）中引起有意的光损失，从而发生两臂（5,6）的期望的不对称性。

公开(公告)号：WO2012047169A1

公开(公告)日：2012-04-12

申请号：PCT/SE2011/051190

申请日：2011-10-05

Applicant: SYNTUNE AB ,  ERIKSSON, Urban ,  LEWÉN, Robert ,  WESSTRÖM, Jan-OLof ,  ÖHMAN, Filip

Inventor： ERIKSSON, Urban ,  LEWÉN, Robert ,  WESSTRÖM, Jan-OLof ,  ÖHMAN, Filip

IPC: H01S5/0625 ,  H01S5/0687

CPC classification number: H01S5/0617 ,  H01S5/0014 ,  H01S5/06256 ,  H01S5/0687 ,  H01S5/1007

Abstract: Method for calibrating a tunable semiconductor laser (121;10) comprising at least a phase section (12) and at least a first Bragg reflector section (14a,14b), through which sections a phase current and a first reflector current, respectively, is applied, which laser (121;10) is not actively temperature stabilized, said method comprising the steps of a)selecting a phase current;b)identifying a range (203) of reflector currents that achieves emission of light from the laser (121;10) within a desired frequency band of operation;c) scanning the reflector current or currents over the range (203) of reflector currents, for each of at least two different phase currents, and reading the relative output power of the laser (121;10) for each point scanned; d) identifying at least one stable operating point (302);e)identifying and storing into a memory at least one stable, continuous tuning line (305) as constructed by interpolating between neighboring stable operating points (302);f)calibrating the laser frequency by scanning along said identified tuning line (305) and observing a fed back signal (113) from a target (110) for the light emitted from the laser (121;10);g)measuring the temperature of the laser (121;10) when step f) was conducted; and h)storing into the memory the temperature of the laser (121;10) and at least one operating point along the tuning line (305) indicative of the target frequency range.

Abstract translation: 用于校准可调谐半导体激光器（121; 10）的方法，所述可调谐半导体激光器包括至少相位部分（12）和至少第一布拉格反射器部分（14a，14b），相位电流和第一反射器电流分别通过该部分 所述方法包括以下步骤：a）选择相电流; b）识别实现来自激光器（121; 121）的光的发射的反射器电流的范围（203） 10）在期望的操作频带内; c）对于至少两个不同相电流中的每一个扫描反射器电流的范围（203）上的反射器电流或电流，并且读取激光器的相对输出功率（121; 10）扫描每一点; d）识别至少一个稳定工作点（302）; e）通过在相邻的稳定操作点（302）之间进行内插构造来识别和存储至少一个稳定的，连续的调谐线（305）并存储到存储器中; f）校准激光 通过沿所述识别的调谐线（305）扫描并从目标（110）观察从激光（121; 10）发射的光的反馈信号（113）; g）测量激光器的温度（121; 10）进行步骤f）时; 以及h）将指示所述目标频率范围的所述激光器（121; 10）的温度和沿着所述调谐线（305）的至少一个操作点存储到所述存储器中。

公开(公告)号：WO2010132013A1

公开(公告)日：2010-11-18

申请号：PCT/SE2010/050516

申请日：2010-05-11

Applicant: SYNTUNE AB ,  WESSTRÖM, Jan-OLof ,  ADAMS, Dave

Inventor： WESSTRÖM, Jan-OLof ,  ADAMS, Dave

IPC: G02B6/28

CPC classification number: G02B6/125 ,  G02B6/12019 ,  G02B6/2808 ,  G02B6/2813

Abstract: An optical light splitter that comprises or is connected to at least two input waveguides (4; 6, 7; 18, 19; 32,33) for light. The invention is characterised in that the light splitter (1, 2, 30, 40), on the side opposite to the input waveguide or input waveguides (4; 6, 7; 18, 19; 32, 33; 41, 42) transitions into at most one output waveguide (8, 10, 20, 34) in the direction of propagation of the incoming light, in that a surface (14, 25, 31, 45) is present set at an angle to the direction of propagation of the light in that part of the light splitter that is opposite to the input waveguide or input waveguides, and in that the said surface is present where the light splitter has an image from incoming light, and in that internal corners are not present in the said part.

Abstract translation: 一种光分路器，包括或连接到用于光的至少两个输入波导（4; 6,7; 18,19; 32,33）。 本发明的特征在于，在与输入波导或输入波导（4; 6,7; 18,19; 32,33,41,42）相反的一侧上的分光器（1,2,30,40）转变 在入射光的传播方向上至多一个输出波导（8,10,20,34），其中呈现与传播方向成一定角度的表面（14,25,31,45） 在光分路器的与输入波导或输入波导相对的那部分中的光，并且存在所述表面，其中光分离器具有来自入射光的图像，并且内部角部不存在于所述 部分。

公开(公告)号：WO2012047170A1

公开(公告)日：2012-04-12

申请号：PCT/SE2011/051191

申请日：2011-10-05

Applicant: SYNTUNE AB ,  ERIKSSON, Urban ,  LEWÉN, Robert ,  WESSTRÖM, Jan-OLof ,  ÖHMAN, Filip

Inventor： ERIKSSON, Urban ,  LEWÉN, Robert ,  WESSTRÖM, Jan-OLof ,  ÖHMAN, Filip

IPC: H01S5/0625 ,  H01S5/0687

CPC classification number: H01S5/0617 ,  H01S5/0014 ,  H01S5/06256 ,  H01S5/0687 ,  H01S5/1007

Abstract: Method for calibrating and tuning a part wise monotonically, continuously tunable semiconductorlaser comprising at least a phase section and at least a first Bragg reflector section, through which sections a phase current and a first reflector current, respectively, are applied, which laser is not actively cooled, said method comprising a) a calibration step, comprising firstly obtaining at least two tuning lines along which tuning lines all combinations of phase and Bragg currents are stable operating points of the laser, secondly identifying at least one reference stable operating point along at least a first one of the identified tuning lines at which operating point the laser at its prevailing operating temperature emits light at a certain reference frequency, and thirdly storing into a memory the at least one reference stable operating point; and b) a subsequent tuning step, during which the output frequency of the laser in relation to the said reference frequency is controlled to a desired out- put frequency by translating the operating point of the laser along the said first tuning line according to a known relationship between relative position along the tuning line and relative laser frequency shift, and, whenever said translation from the said reference operating point is or becomes too great for the operating point to fit along the first tuning line, continuing the translation along another one of the identified tuning lines so as to achieve the desired output frequency.

Abstract translation: 用于校准和调谐部分单调连续可调谐半导体激光器的方法，该半导体激光器至少包括相位部分和至少第一布拉格反射器部分，通过该部分分别施加相电流和第一反射器电流，哪个激光器不是主动的 所述方法包括：a）校准步骤，包括首先获得至少两个调谐线，沿着该调整线，调谐线将相位和布拉格电流的所有组合作为激光的稳定工作点，其次至少标识至少一个参考稳定工作点 所识别的调谐线中的第一个，其中在其主要工作温度下的激光器的操作点以特定参考频率发光，并且在存储器中第三次存储至少一个参考稳定工作点; 以及b）随后的调谐步骤，在该调整步骤期间，通过沿着所述第一调谐线平移激光器的工作点，激光器相对于所述参考频率的输出频率被控制到期望的输出频率 随着沿着调谐线的相对位置和相对激光频率偏移之间的关系，以及每当来自所述参考操作点的所述转换对于操作点沿着第一调谐线拟合或变得太大时，沿着另一个 识别的调谐线，以达到期望的输出频率。

公开(公告)号：EP2430485A1

公开(公告)日：2012-03-21

申请号：EP10775165.3

申请日：2010-05-11

Applicant: Syntune AB

Inventor： WESSTRÖM, Jan-OLof ,  ADAMS, Dave

IPC: G02B6/28

CPC classification number: G02B6/125 ,  G02B6/12019 ,  G02B6/2808 ,  G02B6/2813

Abstract: An optical light splitter that comprises or is connected to at least two input waveguides (4; 6, 7; 18, 19; 32,33) for light. The invention is characterised in that the light splitter (1, 2, 30, 40), on the side opposite to the input waveguide or input waveguides (4; 6, 7; 18, 19; 32, 33; 41, 42) transitions into at most one output waveguide (8, 10, 20, 34) in the direction of propagation of the incoming light, in that a surface (14, 25, 31, 45) is present set at an angle to the direction of propagation of the light in that part of the light splitter that is opposite to the input waveguide or input waveguides, and in that the said surface is present where the light splitter has an image from incoming light, and in that internal corners are not present in the said part.

公开(公告)号：EP2160646B1

公开(公告)日：2011-12-21

申请号：EP08779374.1

申请日：2008-06-10

Applicant: Syntune AB

Inventor： GRANESTRAND, Per ,  WESSTRÖM, Jan-OLof ,  ADAMS, Dave

IPC: G02F1/225

CPC classification number: G02F1/225 ,  G02F2201/14 ,  G02F2203/21

Abstract: A Mach Zehnder (MZ) modulator (1) comprising a splitter (4) for splitting incident light in one wave guide (3) into two modulator arms (5,6) of the MZ and comprising a combiner (7) that combines light from the two arms {5,6) into an output mode, where electrodes (9,10) are present in connection with said arms (5,6) for changing the refractive index in said arms in order to modulate incident light so that the light is amplified or so that an extinction, due to interference between the light in the two arms, takes place. The invention is characterised in, that the splitter (4) is arranged to split incident light equally into the two arms (5,6) and in that a part (11) of one of the arms (5) between said electrode (9) and said combiner (7) is designed to cause an intentional loss of light in the wave guide (3), whereby a desired asymmetry in transmission of the two arms (5,6) occurs.

Abstract translation: 一种包括用于将一个波导（3）中的入射光分成MZ的两个调制器臂（5,6）并包括组合器（7）的分光器（4）的Mach Zehnder（MZ）调制器（1） 两个臂（5,6）转换成输出模式，其中电极（9,10）与所述臂（5,6）连接，用于改变所述臂中的折射率以调制入射光，使得光 被放大或者由于两臂中的光线之间的干涉而发生消光。 本发明的特征在于，分光器（4）被设置为将入射光等分成两个臂（5,6），并且所述电极（9）之间的一个臂（5）的一部分（11） 并且所述组合器（7）被设计成在波导（3）中引起故意的光损失，由此发生两个臂（5,6）传输期望的不对称性。

公开(公告)号：EP2160646A1

公开(公告)日：2010-03-10

申请号：EP08779374.1

申请日：2008-06-10

Applicant: Syntune AB

Inventor： GRANESTRAND, Per ,  WESSTRÖM, Jan-OLof ,  ADAMS, Dave

IPC: G02F1/225

CPC classification number: G02F1/225 ,  G02F2201/14 ,  G02F2203/21

Abstract: A Mach Zehnder (MZ) modulator (1) comprising a splitter (4) for splitting incident light in one wave guide (3) into two modulator arms (5,6) of the MZ and comprising a combiner (7) that combines light from the two arms {5,6) into an output mode, where electrodes (9,10) are present in connection with said arms (5,6) for changing the refractive index in said arms in order to modulate incident light so that the light is amplified or so that an extinction, due to interference between the light in the two arms, takes place. The invention is characterised in, that the splitter (4) is arranged to split incident light equally into the two arms (5,6) and in that a part (11) of one of the arms (5) between said electrode (9) and said combiner (7) is designed to cause an intentional loss of light in the wave guide (3), whereby a desired asymmetry in transmission of the two arms (5,6) occurs.