公开(公告)号：US20180172907A1

公开(公告)日：2018-06-21

申请号：US15541659

申请日：2014-12-29

Applicant: Accelink Technologies Co., Ltd.

Inventor： Yanfeng Fu ,  Kun Qian ,  Di Zhang ,  Xuesheng Tang ,  Shenglei Hu ,  Yi Tang ,  Di Li ,  Weidong Ma ,  Qianggao Hu

IPC: G02B6/12 ,  H01S5/068 ,  H01S5/14

CPC classification number: G02B6/12019 ,  G02B6/12004 ,  G02B6/12014 ,  H01S3/106 ,  H01S3/137 ,  H01S5/0287 ,  H01S5/068 ,  H01S5/142

Abstract: An arrayed waveguide grating based hybrid integrated laser has an adjustable external cavity. The waveguide includes a semiconductor gain die and an optical waveguide chip. The optical waveguide chip includes an arrayed waveguide grating and an arrayed waveguide reflection-controllable component. A resonant cavity is formed by the output end reflection-controllable arrayed waveguide grating chip and the semiconductor gain die. An output wavelength of the laser can be adjusted by changing a driving condition of the reflection-controllable component. The output wavelength is determined by a center wavelength of each channel of the arrayed waveguide grating.

公开(公告)号：US09912120B2

公开(公告)日：2018-03-06

申请号：US15106580

申请日：2013-12-25

Applicant: Accelink Technologies Co., Ltd.

Inventor： Yanfeng Fu ,  Yong Luo ,  Di Zhang ,  Xuesheng Tang ,  Kun Qian ,  Yi Tang ,  Shenglei Hu ,  Qianggao Hu

IPC: H01S3/10 ,  H01S5/14 ,  H01S3/105 ,  H01S3/08 ,  H01S3/102 ,  H01S5/068 ,  H01S5/0683

CPC classification number: H01S5/143 ,  H01S3/08086 ,  H01S3/102 ,  H01S3/105 ,  H01S5/068 ,  H01S5/0683 ,  H01S5/141

Abstract: A Raman pump laser control apparatus comprises a wavelength division multiplexer, a tap coupler, a photoelectric detector, an analog amplification processing circuit, an analog-to-digital converter, a fast Raman pump control unit, an digital-analog converter, and a Raman pump laser. The fast Raman pump control unit, after having known anticipated output light power of the Raman pump laser, based on a direct relationship between a current anticipated output light power of the Raman pump laser and input digital quantity that is needed by the digital-analog converter, uses a feedforward control mechanism so that actual output light power of the Raman pump laser fastly approximates the anticipated output light power thereof, and then synchronously combines with a feedback control mechanism so that the actual output light power of the Raman pump laser is precisely locked on the anticipated output light power, thereby achieving fast and precise control of the Raman pump laser.

公开(公告)号：US10416379B2

公开(公告)日：2019-09-17

申请号：US15541659

申请日：2014-12-29

Applicant: Accelink Technologies Co., Ltd.

Inventor： Yanfeng Fu ,  Kun Qian ,  Di Zhang ,  Xuesheng Tang ,  Shenglei Hu ,  Yi Tang ,  Di Li ,  Weidong Ma ,  Qianggao Hu

IPC: G02B6/12 ,  H01S5/068 ,  H01S5/14

Abstract: An arrayed waveguide grating based hybrid integrated laser has an adjustable external cavity. The waveguide includes a semiconductor gain die and an optical waveguide chip. The optical waveguide chip includes an arrayed waveguide grating and an arrayed waveguide reflection-controllable component. A resonant cavity is formed by the output end reflection-controllable arrayed waveguide grating chip and the semiconductor gain die. An output wavelength of the laser can be adjusted by changing a driving condition of the reflection-controllable component. The output wavelength is determined by a center wavelength of each channel of the arrayed waveguide grating.

公开(公告)号：US10256606B2

公开(公告)日：2019-04-09

申请号：US15740655

申请日：2015-12-15

Applicant: Accelink Technologies Co., Ltd.

Inventor： Shenglei Hu ,  Yanfeng Fu ,  Yi Tang ,  Di Zhang ,  Shiyu Li ,  Xuesheng Tang ,  Kun Qian ,  Weidong Ma ,  Qianggao Hu

IPC: H01S5/06 ,  H01S5/14 ,  H01S5/50 ,  H01S3/106 ,  H01S5/00 ,  H01S5/024

Abstract: A wavelength-tunable external cavity laser comprises a semiconductor optical amplifier chip and a laser external cavity, the laser external cavity comprising a grid filter, a phase adjustor and a silicon-based micro-ring chip, the grid filter and the silicon-based micro-ring chip constituting a wavelength-tunable optical filter which implements wavelength tuning by spectral tuning of the grid filter and/or the silicon-based micro-ring chip. A micro-ring filter in the silicon-based micro-ring chip of the tunable external-cavity laser is manufactured by adopting a mature silicon light technology, which can greatly reduce a manufacturing difficulty of the adjustable filter, and reduce the manufacturing cost of a device. An existing external-cavity adjustable technology platform may be used for smooth transition, so as to improve the degree of integration of this type of device and simplify a preparation process.