公开(公告)号：US09628192B2

公开(公告)日：2017-04-18

申请号：US14924344

申请日：2015-10-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhenxing Liao ,  Lingjie Wang ,  Min Zhou ,  Jing Huang

IPC: H04B10/572 ,  H01S5/00

CPC classification number: H04B10/572 ,  H01S5/00 ,  H01S5/02212 ,  H01S5/02415 ,  H01S5/02438 ,  H01S5/0687

Abstract: Embodiments of the present invention disclose an optical transmitter, a 10 G-DML, an MPD 1, an MPD 2, a collimation lens, and a narrowband optical filter are disposed in a TO to achieve monitoring of an optical power, received optical powers are monitored by using the MPD 1 and the MPD 2, the detected optical powers are output to a wavelength locking monitoring circuit by using a TO pin, variations, which are detected by the wavelength locking monitoring circuit, of the optical power and a variation of a wavelength locking factor K0 are separately compared with corresponding thresholds, and a comparison result are sent to a wavelength locking control circuit, to enable the wavelength locking control circuit to adjust, according to the comparison result and by using the TO pin, a temperature of a TEC to perform wavelength alignment.

公开(公告)号：US20160127038A1

公开(公告)日：2016-05-05

申请号：US14924344

申请日：2015-10-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhenxing Liao ,  Lingjie Wang ,  Min Zhou ,  Jing Huang

IPC: H04B10/079 ,  H04J14/02 ,  H04B10/564

CPC classification number: H04B10/572 ,  H01S5/00 ,  H01S5/02212 ,  H01S5/02415 ,  H01S5/02438 ,  H01S5/0687

Abstract: Embodiments of the present invention disclose an optical transmitter, a 10 G-DML, an MPD 1, an MPD 2, a collimation lens, and a narrowband optical filter are disposed in a TO to achieve monitoring of an optical power, received optical powers are monitored by using the MPD 1 and the MPD 2, the detected optical powers are output to a wavelength locking monitoring circuit by using a TO pin, variations, which are detected by the wavelength locking monitoring circuit, of the optical power and a variation of a wavelength locking factor K0 are separately compared with corresponding thresholds, and a comparison result are sent to a wavelength locking control circuit, to enable the wavelength locking control circuit to adjust, according to the comparison result and by using the TO pin, a temperature of a TEC to perform wavelength alignment.

Abstract translation: 本发明的实施例公开了一种光发射机，一个10G-DML，一个MPD 1，一个MPD 2，一个准直透镜和一个窄带滤光器，以实现对光功率的监视，所接收的光功率是 通过使用MPD 1和MPD 2进行监视，检测到的光功率通过使用TO波段输出到波长锁定监视电路，由波长锁定监视电路检测到的光功率的变化和 将波长锁定因子K0分别与相应的阈值进行比较，并将比较结果发送到波长锁定控制电路，以使得波长锁定控制电路根据比较结果和通过使用TO引脚来调节温度 TEC执行波长对准。

公开(公告)号：US11218221B2

公开(公告)日：2022-01-04

申请号：US16453743

申请日：2019-06-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lingjie Wang ,  Enyu Zhou ,  Sulin Yang ,  Zhenxing Liao

IPC: H04B10/50 ,  G02B27/28

Abstract: A transmitter optical subassembly is disclosed including a substrate and a direct modulated laser disposed on the substrate. A single-stage isolator, a polarization direction rotator, and an optical branching filter are disposed side by side on the substrate in a light propagation direction. The polarization direction rotator can adjust linearly polarized light to P-polarized light, the optical branching filter includes an optical splitter subassembly and a filter subassembly, and an optical splitter film in the optical splitter subassembly is an optical splitter film with P polarization. The polarization direction rotator adjusts the incident linearly polarized light to the P-polarized light, and the optical splitter film in the optical branching filter is the optical splitter film with P polarization; all P-polarized light with single polarization can pass through the optical branching filter, without causing any polarization loss or two peaks.