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    • 31. 发明申请
    • FAST TUNABLE HYBRID LASER
    • 快速可调混合式激光
    • WO2018085143A1
    • 2018-05-11
    • PCT/US2017/058730
    • 2017-10-27
    • ORACLE INTERNATIONAL CORPORATION
    • ZHENG, XuezheYAO, JinLUO, YingKRISHNAMOORTHY, Ashok V.
    • H01S5/14H01S5/40
    • H01S5/1092H01S3/106H01S5/0071H01S5/0268H01S5/0608H01S5/141H01S5/142H01S5/187H01S5/4087H01S5/5027
    • Disclosed is a tunable lasers that includes a set of M reflective silicon optical amplifiers (804, 806), RSOAs, and a set of N narrow-band reflectors (810, 812). It also includes a silicon-photonic optical switch (814), having M amplifier ports, which are coupled through a set of M optical waveguides (833, 834) to the set of M RSOAs, and N reflector ports, which are coupled to the set of N narrow-band reflectors. The tunable laser also includes a switching mechanism that facilitates coupling at least one selected amplifier port from the M amplifier ports with a selected reflector port from the N reflector ports, thereby causing an RSOA coupled to the selected amplifier port to form a lasing cavity with a narrow-band reflector coupled to the selected reflector port. The tunable laser also includes a laser output (822), which is optically coupled to the lasing cavity.
    • 公开了包括一组M个反射硅光放大器(804,806),RSOAA和一组N个窄带反射器(810,812)的可调谐激光器。 它还包括具有M个放大器端口的硅光子光学开关(814),所述M个放大器端口通过一组M个光学波导(833,834)耦合到所述一组M个RSOA和N个反射器端口,所述N个反射器端口耦合到 一套N个窄带反射器。 可调谐激光器还包括开关机构,该开关机构有助于将来自M个放大器端口的至少一个选定放大器端口与来自N个反射器端口的选定反射器端口耦合,从而使与选定放大器端口耦合的RSOA与激光器端口形成激光谐振腔 耦合到所选反射器端口的窄带反射器。 该可调谐激光器还包括一个激光输出(822),该激光输出被光耦合到激光腔。
    • 33. 发明申请
    • MODULATED INTEGRATED OPTICALLY PUMPED VERTICAL CAVITY SURFACE EMITTING LASERS
    • 调制集成光学泵浦垂直孔表面发射激光
    • WO01031756A1
    • 2001-05-03
    • PCT/US2000/041517
    • 2000-10-24
    • H01S5/02H01S5/026H01S5/04H01S5/06H01S5/062H01S5/18H01S5/183H01S3/09
    • H01S5/041H01S5/0216H01S5/026H01S5/0265H01S5/0608H01S5/06216H01S5/06226H01S5/1085H01S5/18H01S5/18369H01S5/2027H01S5/2214H01S5/2231H01S5/4025
    • Modulated integrated optically pumped vertical cavity surface emitting lasers (VCSEL) are formed by integrating an electrically pumped semiconductor laser (140) and a VCSEL (150) together with a means of direct modulation of the electrically pumped semiconductor laser. The electrically pumped semiconductor laser may be a folded cavity surface emitting laser (FCSEL) which is partitioned into two sections (201 and 202) by a gap in material layers. One section 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 is used for modulation and causes the optically pumped VCSEL to be modulated above the threshold. An electric-absorption modulator may be sandwiched between the FCSEL and the VCSEL, and allows photons to pass through from the FCSEL to the VCSEL when in one state and attenuates photons before reaching the VCSEL when in another state.
    • 通过将电泵浦的半导体激光器(140)和VCSEL(150)与电泵浦半导体激光器的直接调制装置一起集成来形成调制的集成光泵浦垂直腔表面发射激光器(VCSEL)。 电泵浦的半导体激光器可以是折叠腔表面发射激光器(FCSEL),其通过材料层中的间隙分成两个部分(201和202)。 一个部分被偏置,以便将光子的产生保持在恒定的功率水平以泵浦光泵浦的VCSEL,而第二部分用于调制,并且使光泵浦的VCSEL被调制到阈值以上。 电吸收调制器可以夹在FCSEL和VCSEL之间,并且当处于一种状态时允许光子从FCSEL通过到VCSEL,并且当处于另一状态时,光子在到达VCSEL之前被衰减。
    • 35. 发明申请
    • OPTICAL SYSTEMS WITH ONE OR MORE STABILISED LASER SIGNAL SOURCES
    • 具有一个或更多稳定的激光信号源的光学系统
    • WO1998025328A1
    • 1998-06-11
    • PCT/EP1997006672
    • 1997-11-21
    • KONINKLIJKE PTT NEDERLAND N.V.
    • KONINKLIJKE PTT NEDERLAND N.V.BOOT, Adriaan, Johan
    • H01S03/23
    • H01S5/0608H01S3/2308H01S5/0078H01S5/4006H04B10/50
    • Optical stabilisation system having a signal source (1) connected to a transmission line (2) and a noise source (3). The signal source (1) comprises a laser having a number of laser modes within a first wavelength band for generating an optical transmission signal (S). The noise source generates a narrow-band noise signal which is inserted into the transmission line via coupling means (5) and is injected into the laser of the signal source (1). The noise signal forces the laser to operate in a laser mode within the noise band. Via a power distributor (11), a portion of the noise signal can also be injected into a laser of a further signal source (9) for stabilisation in a laser mode within the same noise band. Any signals outside the noise band are removed from the transmission signal by a narrow-band filter (8). The stabilisation system is applied in passive optical networks for groupwise wavelength assignment to network terminals.
    • 具有连接到传输线(2)和噪声源(3)的信号源(1)的光学稳定系统。 信号源(1)包括在第一波长带内具有多个激光模式的激光器,用于产生光传输信号(S)。 噪声源产生窄带噪声信号,其通过耦合装置(5)插入到传输线中并被注入到信号源(1)的激光器中。 噪声信号迫使激光器在噪声频带内以激光模式工作。 通过功率分配器(11),噪声信号的一部分也可以被注入到另一个信号源(9)的激光器中,以在相同的噪声频带内以激光模式稳定。 通过窄带滤波器(8)从传输信号中去除噪声频带之外的任何信号。 稳定系统应用于无源光网络,用于组网波长分配给网络终端。
    • 36. 发明申请
    • Q-SWITCHED SEMICONDUCTOR LASER
    • 质控半导体激光器
    • WO1997037406A1
    • 1997-10-09
    • PCT/DE1997000696
    • 1997-03-27
    • HEINRICH-HERTZ-INSTITUT FÜR NACHRICHTENTECHNIK BERLIN GMBHSARTORIUS, BerndMÖHRLE, Martin
    • HEINRICH-HERTZ-INSTITUT FÜR NACHRICHTENTECHNIK BERLIN GMBH
    • H01S03/103
    • H01S5/0625H01S3/082H01S5/0607H01S5/0608H01S5/0615H01S5/06253H01S5/06256H01S5/06258
    • A Q-switched semiconductor laser is supposed to facilitate high-frequency laser modulation with low currents or voltage ranges. According to the invention, a laser of this type consists of at least one continually pumped active medium and two optically coupled resonators at least one of which is passive, both resonators having different mode "" corresponding to the Nonius principle, at least one resonator mirror taking the form of a reflector with strongly dispersive reflection characteristics in the laser wavelength range selected by the double resonator, the index of refraction of the passive resonator and/or reflector capable of being adjusted electronically. With this device, the reflectivity of the laser wavelength can be adjusted in such a way that, with a fixed effective amplification by electrical modulation of the reflectivity of the resonator reflector with strongly dispersive reflection characteristics, the laser threshold can be raised or lowered so as to switch the semiconductor laser on or off.
    • Q开关半导体激光器,以实现与低电流和电压摆动的高频激光调制。 根据本发明,至少一个恒定的这样的激光泵浦激活介质和两个光学耦合的谐振器,其特征在于,至少一个谐振器是形成的被动和两个谐振器不同,对应于游标原理模式梳具有至少一个谐振器镜与强扩散反射范围为特征的反射器 在通过双谐振腔的激光波长选择形成和无源谐​​振器和/或反射器的折射率是电可调。 采用这种布置,对于激光波长的反射率可以被设置,使得在固定的有效增益,激光阈值因而可以降低或由谐振器反射镜的反射率的电调制与该半导体激光器的单表征或关闭的强烈色散反射特性提高。
    • 37. 发明申请
    • WAVELENGTH CONVERTER
    • 波长转换器
    • WO1997002634A1
    • 1997-01-23
    • PCT/DE1996001193
    • 1996-06-28
    • HEINRICH-HERTZ-INSTITUT FÜR NACHRICHTENTECHNIK BERLIN GMBHWEICH, KlausEGGEMANN, RandolphPATZAK, Erwin
    • HEINRICH-HERTZ-INSTITUT FÜR NACHRICHTENTECHNIK BERLIN GMBH
    • H01S03/25
    • H01S5/50H01S5/0608
    • The invention concerns a wavelength converter for converting a first light signal used for data-transmission and having a first wavelength ( lambda In) into a second light signal having a second wavelength ( lambda Out). The wavelength converter signal comprises a signal input for picking up the first light signal, a signal output for emitting the second light signal, a modulatable optical semiconductor amplifier (4) with an input, an output and modulation input and a first laser light source (L1), which forms a first stage (1) with the semiconductor amplifier (4). The input of the semiconductor amplifier (4) is connected to the first laser light source (L1) and the modulation input of the semiconductor amplifier (4) is connected to the signal input for cross-amplification modulation. The first laser light source (L1) emits light with a third wavelength ( lambda int). Arranged downstream of the first stage (1) by means of an optical coupler (3) is a second stage (2) which contains a modulatable second laser light source which emits light at the second wavelength ( lambda Out) and has a modulation input and an output. The modulation input of the second laser light source is connected to the output of the semiconductor amplifier and the output of the second laser light source is connected to the signal output.
    • 波长转换器提供用于在第二光信号转换的第一,对于具有第一波长的信息的信号光(波长上)的变速器,其具有一第二波长(拉姆达出),具有信号输入,用于接收第一光信号,一个信号输出,用于发射所述第二 光信号,调制的光半导体放大器(4)具有一个输入,一个输出和调制输入,连接到所述半导体放大器的第一激光光源(L1)(4)的第一级(1),其中,所述半导体放大器的输入端(4)与 被连接到所述第一激光光源(L1)和用于交叉增益调制到信号输入端的半导体放大器(4)的调制输入,其中所述第一激光光源(L1)发射第三波长的光(波长int)和第一级(1)由光学 耦合元件(3)的第二级(2)的下游连接,光 包含第二波长(拉姆达出)发射与一个调制输入和输出端,所述第二激光光源的调制输入调制的第二激光光源被连接到该半导体放大器的输出和第二激光光源到所述信号输出的输出。