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    TUNABLE LASER WITH MULTIPLE IN-LINE SECTIONS
    1.
    发明申请
    TUNABLE LASER WITH MULTIPLE IN-LINE SECTIONS 审中-公开
    具有多个在线部分的可激光激光

    公开(公告)号：US20150357791A1

    公开(公告)日：2015-12-10

    申请号：US13916652

    申请日：2013-06-13

    Applicant: Applied Optoelectronics, Inc.

    Inventor： Jun Zheng ,  Klaus Alexander Anselm ,  Yi Wang ,  I-Lung Ho ,  Huanlin Zhang ,  Dion McIntosh-Dorsey

    IPC: H01S5/06 ,  H01S5/062 ,  H04B10/572 ,  H01S5/028 ,  H04J14/02 ,  H01S5/40 ,  H01S5/00

    CPC classification number: H01S5/0612 ,  H01S5/005 ,  H01S5/0287 ,  H01S5/06246 ,  H01S5/06258 ,  H01S5/1215 ,  H01S5/1246 ,  H01S5/4031 ,  H01S5/4087 ,  H04B10/572 ,  H04J14/02 ,  H04J14/0245

    Abstract: A tunable laser with multiple in-line sections generally includes a semiconductor laser body with a plurality of in-line laser sections each configured to be driven independently to generate laser light at a wavelength within a different respective wavelength range. The wavelength of the light generated in each of the laser sections may be tuned, in response to a temperature change, to a channel wavelength within the respective wavelength range. The laser light generated in each selected one of the laser sections is emitted from a front facet of the laser body. By selectively generating light in one or more of the laser sections, one or more channel wavelengths may be selected for lasing and transmission. The tunable laser with multiple in-line sections may be used, for example, in a tunable transmitter in an optical networking unit (ONU) in a WDM passive optical network (PON) to select a transmission channel wavelength.

    Abstract translation: 具有多个在线部分的可调激光器通常包括具有多个在线激光部分的半导体激光器体，每个激光器部分被配置为独立地被驱动以产生在不同的相应波长范围内的波长的激光。 在每个激光部分中产生的光的波长可以响应于温度变化被调谐到相应波长范围内的通道波长。 在每个选择的一个激光部分中产生的激光从激光体的前刻面发射。 通过选择性地在一个或多个激光部分中产生光，可以选择一个或多个信道波长用于激光和透射。 具有多个在线部分的可调激光器可以用于例如WDM无源光网络（PON）中的光网络单元（ONU）中的可调谐发射机中，以选择传输信道波长。

    TWO-SECTION SEMICONDUCTOR LASER WITH MODULATION-INDEPENDENT GRATING SECTION TO REDUCE CHIRP
    2.
    发明申请
    TWO-SECTION SEMICONDUCTOR LASER WITH MODULATION-INDEPENDENT GRATING SECTION TO REDUCE CHIRP 有权
    具有调制独立光泽度的两部分半导体激光器，以减少CHIRP

    公开(公告)号：US20160197678A1

    公开(公告)日：2016-07-07

    申请号：US14590456

    申请日：2015-01-06

    Applicant: Applied Optoelectronics, Inc.

    Inventor： Jun Zheng ,  Stefan Murry ,  Klaus Alexander Anselm ,  Huanlin Zhang ,  Dion McIntosh-Dorsey

    IPC: H04B10/50 ,  H01S5/062

    CPC classification number: H01S5/06256 ,  H01S5/02415 ,  H01S5/06226

    Abstract: A two-section semiconductor laser includes a gain section and a modulation-independent grating section to reduce chirp. The modulation-independent grating section includes a diffraction grating for reflecting light and forms a laser cavity with the gain section for lasing at a wavelength or range of wavelengths reflected by the diffraction grating. The gain section of the semiconductor laser includes a gain electrode for driving the gain section with at least a modulated RF signal and the grating section includes a grating electrode for driving the grating section with a DC bias current independent of the modulation of the gain section. The semiconductor laser may thus be directly modulated with the modulated RF signal without the modulation significantly affecting the index of refraction in the diffraction grating, thereby reducing chirp.

    Abstract translation: 两部分半导体激光器包括增益部分和调制无关光栅部分，以减少啁啾。 调制非依赖光栅部分包括用于反射光的衍射光栅，并且在激光的增益部分处形成激光腔，该增益部分在由衍射光栅反射的波长或波长范围内进行激光。 半导体激光器的增益部分包括用于以至少调制的RF信号驱动增益部分的增益电极，并且光栅部分包括用于以独立于增益部分的调制的DC偏置电流来驱动光栅部分的光栅电极。 因此，半导体激光器可以用调制的RF信号直接调制，而不会使调制显着影响衍射光栅中的折射率，从而减少啁啾。

    TUNABLE LASER WITH MULTIPLE IN-LINE SECTIONS INCLUDING SAMPLED GRATINGS
    3.
    发明申请
    TUNABLE LASER WITH MULTIPLE IN-LINE SECTIONS INCLUDING SAMPLED GRATINGS 有权
    具有多个在线部分的可激光激光器，包括采样光栅

    公开(公告)号：US20150078751A1

    公开(公告)日：2015-03-19

    申请号：US14551353

    申请日：2014-11-24

    Applicant: Applied Optoelectronics, Inc.

    Inventor： Jun Zheng ,  Klaus Alexander Anselm ,  Huanlin Zhang ,  Dion McIntosh-Dorsey

    IPC: H04B10/50 ,  H04J14/02 ,  H04B10/27 ,  H01S5/06

    CPC classification number: H01S5/1209 ,  H01S5/02415 ,  H01S5/0612 ,  H01S5/06258 ,  H01S5/1092 ,  H01S5/4087

    Abstract: A tunable laser with multiple in-line sections including sampled gratings generally includes a semiconductor laser body with a plurality of in-line laser sections configured to be driven independently to generate laser light at a wavelength within a different respective wavelength range. Sampled gratings in the respective in-line sections have the same grating period and a different sampling period to produce the different wavelengths. The wavelength of the light generated in the respective laser sections may be tuned, in response to a temperature change, to a channel wavelength within the respective wavelength range. By selectively generating light in one or more of the laser sections, one or more channel wavelengths may be selected for lasing and transmission. By using sampled gratings with the same grating period in the multiple in-line sections, the multiple section tunable laser may be fabricated more easily.

    Abstract translation: 具有包括采样光栅的多个在线部分的可调激光器通常包括半导体激光器主体，其具有被配置为独立驱动的多个在线激光部分，以产生波长在不同的相应波长范围内的激光。 相应的在线部分中的采样光栅具有相同的光栅周期和不同的采样周期以产生不同的波长。 在相应的激光部分中产生的光的波长可以响应于温度变化被调谐到相应波长范围内的通道波长。 通过选择性地在一个或多个激光部分中产生光，可以选择一个或多个信道波长用于激光和透射。 通过在多个在线部分中使用具有相同光栅周期的采样光栅，可以更容易地制造多段可调谐激光器。

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