Channel-switched tunable laser for DWDM communications
    1.
    发明授权
    Channel-switched tunable laser for DWDM communications 失效
    用于DWDM通信的信道切换可调谐激光器

    公开(公告)号:US6373872B2

    公开(公告)日:2002-04-16

    申请号:US95035901

    申请日:2001-09-10

    Applicant: SPARKOLOR CORP

    Inventor: DEACON DAVID A G

    Abstract: Laser source including materials with negative index of refraction dependence on temperature and with temperature independent coincidence between cavity modes and a set of specified frequencies such as DWDM channels in telecommunications applications. The free spectral range may be adjusted to equal a rational fraction of the specified frequency interval. The operating frequency may be defined by a frequency selective feedback element that is thermo-optically tuned by the application of heat from an actuator without substantially tuning the cavity modes. The operating frequency may be induced to hop digitally between the specified frequencies. In a particular embodiment, semiconductor amplifier and polymer waveguide segments form a linear resonator with a thermo-optically tuned grating reflector. In a further embodiment, an amplifier and two waveguides from a tunable grating assisted coupler form a ring resonator. Tuning may also be accomplished by means of applying an electric field across a liquid crystal portion of the waveguide structure within the grating.

    Abstract translation: 激光源包括负折射率依赖于温度的材料,以及腔模式之间的温度独立重合,以及电信应用中的一组指定频率,例如DWDM通道。 可以将自由光谱范围调整为等于指定频率间隔的有理分数。 工作频率可以由频率选择反馈元件限定,该频率选择反馈元件通过施加来自致动器的热而不进行基本上调谐腔模的热光学调谐。 可以在指定的频率之间数字地诱导工作频率跳变。 在特定实施例中,半导体放大器和聚合物波导段形成具有热光调谐光栅反射器的线性谐振器。 在另一实施例中,来自可调谐光栅辅助耦合器的放大器和两个波导形成环形谐振器。 调谐也可以通过在光栅内的波导结构的液晶部分上施加电场来实现。

    CHANNEL-SWITCHED TUNABLE LASER FOR DWDM COMMUNICATIONS
    2.
    发明申请
    CHANNEL-SWITCHED TUNABLE LASER FOR DWDM COMMUNICATIONS 审中-公开
    用于DWDM通信的CHANNEL-SWITCHED TUNABLE LASER

    公开(公告)号:WO0129937A2

    公开(公告)日:2001-04-26

    申请号:PCT/US0027875

    申请日:2000-10-10

    Applicant: SPARKOLOR CORP

    Inventor: DEACON DAVID A G

    Abstract: Laser source (100) including materials (122, 124) with negative index of refraction dependence on temperature and with temperature independent coincidence between cavity modes and a set of specified frequencies such as DWDM channels in telecommunications applications. The free spectral range may be adjusted to equal a rational fraction of the specified frequency interval. The operating frequency may be defined by a frequency selective feedback element (130, 132) that is thermo-optically tuned by the application of heat from an actuator without substantially tuning the cavity modes. The operating frequency may be induced to hop digitally between the specified frequencies. In a particular embodiment, semiconductor amplifier (110) and polymer waveguide segments (122, 124) form a linear resonator with a thermo-optically tuned grating reflector (130, 132). In further embodiments (Figs. 9 and 10), an amplifier (916, 1016) and two waveguides from a tunable grating assisted coupler (930, 1030) form a ring resonator. Tuning may also be accomplished by means of applying an electric field (1122, 1124, 1126) across a liquid crystal portion (1142) of the waveguide structure (Fig. 11B) within the grating.

    Abstract translation: 激光源(100)包括负折射率依赖于温度的材料(122,124),并且在腔模式和电信应用中的一组指定频率(例如DWDM通道)之间具有温度独立的一致性。 可以将自由光谱范围调整为等于指定频率间隔的有理分数。 工作频率可以由频率选择反馈元件(130,132)限定,频率选择反馈元件(130,132)通过施加来自致动器的热量而不进行基本调谐腔模式进行热光学调谐。 可以在指定的频率之间数字地诱导工作频率跳变。 在特定实施例中,半导体放大器(110)和聚合物波导段(122,124)形成具有热光学调谐的光栅反射器(130,132)的线性谐振器。 在另外的实施例(图9和10)中,放大器(916,1016)和来自可调谐光栅辅助耦合器(930,1030)的两个波导形成环形谐振器。 调谐还可以通过在光栅内的波导结构(图11B)的液晶部分(1142)上施加电场(1122,1124,1126)来实现。

Patent Agency Ranking