公开(公告)号：WO2006103642A3

公开(公告)日：2007-01-25

申请号：PCT/IE2006000021

申请日：2006-03-30

申请人： TRINITY COLLEGE DUBLIN ,  GUO WEI-HUA ,  DONEGAN JOHN FRANCIS ,  BRADLEY ANN LOUISE ,  LYNCH MICHAEL ANDREW ,  KRUG TORSTEN

发明人： GUO WEI-HUA ,  DONEGAN JOHN FRANCIS ,  BRADLEY ANN LOUISE ,  LYNCH MICHAEL ANDREW ,  KRUG TORSTEN

IPC分类号： G04F13/02 ,  G01J11/00 ,  G02F1/35

CPC分类号： G01J11/00 ,  G04F13/026

摘要： Apparatus for determining the pulse width of ultra-short light pulses of an input repetitive light pulse signal comprises a two-photon absorption. detector (2) in the form of a microcavity (3) having an active region (4) located between top and bottom distributed Bragg reflectors (5,6). An optical fibre cable 16 directs the input light pulse signal combined with a reference repetitive light pulse signal normal to an incident surface (8) of the detector (2). The input light pulse signal is split in a polarisation light splitter (19) to form the reference light pulse signal which is passed through a delay line (23) to a polarisation light combiner (20) to be combined with the input light pulse signal, and directed at the incident surface (8) by the optical fibre cable (16). The delay line (23) is operated for alternately bringing the respective light pulses of the input and reference light pulse signals into and out of phase with each other to produce a pulsed photocurrent in the microcavity (3). A monitoring circuit (14) monitors the pulsed photocurrent, and the pulse width of the light pulses is determined as the full width half maximum of the pulsed photocurrent trace. By varying the angle of incidence at which the input and reference light pulse signals are incident on the incident surface (8), the apparatus is tuneable to input light pulse signals of different wavelengths within a predetermined range of wavelengths.

摘要翻译： 用于确定输入重复光脉冲信号的超短光脉冲的脉冲宽度的装置包括双光子吸收。 具有位于顶部和底部分布布拉格反射器（5,6）之间的有源区（4）的微腔（3）形式的检测器（2）。 光纤电缆16将与基准重复光脉冲信号结合的输入光脉冲信号垂直地引导到检测器（2）的入射表面（8）。 输入光脉冲信号被分离在偏振光分离器（19）中，以形成参考光脉冲信号，该参考光脉冲信号通过延迟线（23）到偏振光组合器（20）以与输入光脉冲信号组合， 并通过光缆（16）引导入射面（8）。 操作延迟线（23）以交替地使输入和参考光脉冲信号的各个光脉冲相互相互离开，以在微腔（3）中产生脉冲光电流。 监测电路（14）监测脉冲光电流，并且将光脉冲的脉冲宽度确定为脉冲光电流迹线的全宽度半值。 通过改变输入和参考光脉冲信号入射入射表面（8）的入射角，该装置可调谐以在预定波长范围内输入不同波长的光脉冲信号。

公开(公告)号：WO2006103643A1

公开(公告)日：2006-10-05

申请号：PCT/IE2006/000022

申请日：2006-03-30

申请人： THE PROVOST, FELLOWS AND SCHOLARS OF THE COLLEGE OF THE HOLY AND UNDIVIDED TRINITY OF QUEEN ELIZABETH NEAR DUBLIN ,  O'BRIEN, Canice, Gerard ,  SEO, Woon-Ho ,  WU, Guan-Hong ,  DONEGAN, John, Francis

发明人： O'BRIEN, Canice, Gerard ,  SEO, Woon-Ho ,  WU, Guan-Hong ,  DONEGAN, John, Francis

IPC分类号： H01S5/223 ,  H01S5/065 ,  H01S5/22 ,  H01S5/20 ,  H01S5/343

CPC分类号： H01S5/065 ,  B82Y20/00 ,  H01S5/0658 ,  H01S5/222 ,  H01S5/2226 ,  H01S5/2231 ,  H01S5/3434

摘要： A heterostructure self-pulsating laser device (1) comprising an active layer (5) with first and second cladding layers (6, 7) on respective opposite sides of the active layer (5) is grown on an n-substrate (2) of indium phosphide, the second cladding layer (7) being grown on the substrate (2), the active layer (5) being grown on the second cladding layer (7), and the first cladding layer (6) being grown on the active layer (5). A current blocking layer (12) is formed in the first cladding layer (6) and divides the first cladding layer (6) to form a distal cladding layer (15) and a proximal cladding layer (16) adjacent the active layer (5). A channel (14) defined by the current blocking layer (12) confines the current in the first cladding layer (6) and determines the width of the active light generating area of the active layer (5). The first and second cladding layers (6, 7) and the current blocking layer (12) are of grown doped indium phosphide. The first cladding layer (6) is doped to be a p-type layer and the second cladding layer (7) and the current blocking layer (12) are doped to be of n-type. The level of dopant in the current blocking layer (12) is approximately ten times greater than the level of doping in the first cladding layer (6) in order to establish an effective refractive index step in the lateral direction of the active layer (5) in order to confine light generated in the active layer (5). A continuous wave operating laser device is also described.

摘要翻译： 在有源层（5）的相对的相对侧上包括具有第一和第二覆层（6,7）的有源层（5）的异质结构自脉动激光器件（1）生长在n型衬底（2）上 磷化铟，第二包层（7）在衬底（2）上生长，有源层（5）生长在第二覆层（7）上，并且第一覆层（6）在有源层上生长 （5）。 在第一包层（6）中形成电流阻挡层（12），并分隔第一覆层（6）以形成与活性层（5）相邻的远侧包层（15）和近侧包层（16） 。 由电流阻挡层（12）限定的沟道（14）将电流限制在第一覆层（6）中，并确定有源层（5）的有源光产生区域的宽度。 第一和第二覆层（6,7）和电流阻挡层（12）是生长掺杂的磷化铟。 第一覆层（6）掺杂为p型层，第二覆层（7）和电流阻挡层（12）掺杂为n型。 为了在有源层（5）的横向方向上建立有效的折射率步骤，电流阻挡层（12）中的掺杂剂的水平比第一包层（6）中的掺杂水平大大约十倍， 以限制在活性层（5）中产生的光。 还描述了连续波操作激光装置。

公开(公告)号：WO2006103642A2

公开(公告)日：2006-10-05

申请号：PCT/IE2006/000021

申请日：2006-03-30

申请人： THE PROVOST, FELLOWS AND SCHOLARS OF THE COLLEGE OF THE HOLY AND UNDIVIDED TRINITY OF QUEEN ELIZABETH NEAR DUBLIN ,  GUO, Wei-Hua ,  DONEGAN, John, Francis ,  BRADLEY, Ann, Louise ,  LYNCH, Michael, Andrew ,  KRUG, Torsten

发明人： GUO, Wei-Hua ,  DONEGAN, John, Francis ,  BRADLEY, Ann, Louise ,  LYNCH, Michael, Andrew ,  KRUG, Torsten

IPC分类号： G04F13/02 ,  G01J11/00 ,  G02F1/35

CPC分类号： G01J11/00 ,  G04F13/026

摘要： Apparatus for determining the pulse width of ultra-short light pulses of an input repetitive light pulse signal comprises a two-photon absorption. detector (2) in the form of a microcavity (3) having an active region (4) located between top and bottom distributed Bragg reflectors (5,6). An optical fibre cable 16 directs the input light pulse signal combined with a reference repetitive light pulse signal normal to an incident surface (8) of the detector (2). The input light pulse signal is split in a polarisation light splitter (19) to form the reference light pulse signal which is passed through a delay line (23) to a polarisation light combiner (20) to be combined with the input light pulse signal, and directed at the incident surface (8) by the optical fibre cable (16). The delay line (23) is operated for alternately bringing the respective light pulses of the input and reference light pulse signals into and out of phase with each other to produce a pulsed photocurrent in the microcavity (3). A monitoring circuit (14) monitors the pulsed photocurrent, and the pulse width of the light pulses is determined as the full width half maximum of the pulsed photocurrent trace. By varying the angle of incidence at which the input and reference light pulse signals are incident on the incident surface (8), the apparatus is tuneable to input light pulse signals of different wavelengths within a predetermined range of wavelengths.

摘要翻译： 用于确定输入重复光脉冲信号的超短光脉冲的脉冲宽度的装置包括双光子吸收。 具有位于顶部和底部分布布拉格反射器（5,6）之间的有源区（4）的微腔（3）形式的检测器（2）。 光纤电缆16将与基准重复光脉冲信号结合的输入光脉冲信号垂直地引导到检测器（2）的入射表面（8）。 输入光脉冲信号被分离在偏振光分离器（19）中，以形成参考光脉冲信号，该参考光脉冲信号通过延迟线（23）到偏振光组合器（20）以与输入光脉冲信号组合， 并通过光缆（16）引导入射面（8）。 操作延迟线（23）以交替地使输入和参考光脉冲信号的各个光脉冲相互相互离开，以在微腔（3）中产生脉冲光电流。 监测电路（14）监测脉冲光电流，并且将光脉冲的脉冲宽度确定为脉冲光电流迹线的全宽度半值。 通过改变输入和参考光脉冲信号入射入射表面（8）的入射角，该装置可调谐以在预定波长范围内输入不同波长的光脉冲信号。